Sensitization is a cause of corrosion that has been widely studied in austenitic steels; however, the relationship between sensitization and mechanical properties of steel is less known. Therefore, the objective of this work is to study the mechanical pro...

13 Oct 2010 ... En ambientes de muy baja gravedad, en cambio, no se necesita ning?n ... hechas de aleaci?n de titanio, vidrio met?lico, y acero inoxidable. ...

13 Oct 2010 ... El acero inoxidable es una aleaci?n (mezcla de hierro, n?quel y cromo), as? como lo es la mayor parte de la orfebrer?a (oro y n?quel). ...

Ion nitriding is a glow discharge process that is used to induce surface modification in metals. It has been applied to 316-L austenitic stainless steel looking for similar benefits already obtained in other steels. An austenitic stainless steel was selec...

The relationship between the degree of sensitization and the corrosion resistance of austenitic stainless steel has been reported since long time, however this relationship does not account for all the experimental results reported on the literature. The ...

The intergranular stress cracking of welded joints of austenitic stainless steel, AISI 304, is a serious problem in BWR type reactors. It is associated with the simultaneous presence of three factors; stress, a critical media and sensibilization (DOS). EP...

Corrosion susceptibility under stress of AISI 304 steel sensitized in a sodium thiocyanate solution has been studied and results were compared with those obtained with solutions of thiosulfate and tetrathionate. Sensitized steel type 304 is highly suscept...

The relationship between: microstructure-heat treatment, microstructure-mechanical properties, microstructure-corrosion resistance make that the study of the microstructure of metals and alloys be a powerful tool either in technical-scientific research as...

... Title : TRANSMISSION ELECTRON MICROSCOPY OF TYPE 304L STAINLESS STEEL WELDMENTS. Corporate Author : ...

... Accession Number : ADD101291. Title : TRITIUM ABSORPTION IN TYPE 304L STAINLESS STEEL,. Corporate Author : ...

... Title : Sodium Compatibility of Refractory Metal Alloy-Type 304L ... The induction brazing in a vacuum of Mo, Re, Ta, and W alloys to Type ...

... ADD148278. Title : Phase Transformations in Phosphorus Ion Implanted 304L Stainless Steel. Descriptive Note : Journal article,. ...

... in alloys with a face-centered cubic (FCC) lattice, these observations for Type 304L stainless steel and similar observations of Nitronic-40 and ...

... Accession Number : ADD130667. Title : Hydrogen Assisted Cracking in Type 304L and 316L Stainless Steel,. Corporate ...

... Accession Number : ADD149704. Title : Flow Localisation Behaviour of AISI 304L Austenitic Stainless Steel in Warm and Hot Working Regions. ...

... The flexure fatigue behavior for the base metal and welded joint of an AISI 304L stainless steel type, used in the Angra-1 reactor, was determined. ...

... Abstract : Type 304L stainless steel is currently considered to be the nuclear waste package reference material by the Nevada Nuclear Waste ...

... Title : AN EXPERIMENTAL INVESTIGATION OF THE THERMAL CONDUCTIVITY AND ELECTRICAL RESISTIVITY OF THREE POROUS 304L ...

... Title : The Transpassivity Region on AISI 304L Stainless ... sub 2)SO(sub 4) Solution ... Corporate Author : UNIVERSIDADE FEDERAL DE SAO CARLOS ...

... Title : The Corrosion Behavior of AISI 304L Stainless Steel in 0.1 M HCl at Room Temperature--II. The Effect of Cold Working,. Corporate Author : ...

A series of compounds having the N-acylamino acid or a related structure were investigated for the inhibition of localized corrosion of AISI Type 304L stainless steel. The effects of the inhibitor concentration on the breakdown potential and solution surf...

The onset of plastic instability, localization of plastic flow, and fracture in Type 304L austenitic stainless steel are modified by the presence of hydrogen. It is not certain, however, whether the observed changes in behavior are attributable to the dir...

Primary concerns over use of types 304L and 316L are for chloride- induced stress-corrosion cracking (SCC) and weld microstructure stability. Possibly alloy 825 will be a more suitable candidate. (DLC)

... Title : THE EFFECT OF DEFORMATION MARTENSITE ON THE STRESS- CORROSION CRACKING OF AISI 304L TYPE STEEL IN AN H(2)SO(4 ...

... Title : GRAIN BOUNDARY SEGREGATION OF PHOSPHORUS AND SULFUR IN TYPES 304L AND 316L STAINLESS STEEL AND ITS EFFECT ...

High strength (100 ksi) High Energy-release Rate Forged (HERF) 304L stainless steel is being considered for future weapon components. The potential yield anisotropy of this HERF 304L stainless steel was investigated via biaxial loading experiments. Biaxia...

New tanks for storage of low level radioactive wastes will be constructed at the Savannah River Site (SRS) of AISI Type 304L stainless steel (304L). The presence of chlorides and fluorides in the wastes may induce Stress Corrosion Cracking (SCC) in 304L. Constant Extension Rate Tests (CERT) were performed to ...

d'aciers inoxidables austenitiques nickel-chrome". Academie des Science, Comptes Rendus, Paris. Vol. 264,. No. 5, Jan. 30, 1967, pp. 425-428. ...

... MMA, oxyacetylene and TIG deposition trials on type 304L stainless steel parent plate using Deloro 45 and Colmonoy 5, and MIG trials on type 304 ...

... Title : Thermal Behavior of Nitrogen and Carbon Implanted AISI 304L Stainless Steel. Descriptive Note : Journal article,. ...

... A compilation and critical analysis of the thermal conductivity (lambda) of AISI ... the electrical resistivity, and the absolute Seebeck coefficient of 304L ...

... Title : The Resistance to Localized Corrosion in Neutral Chloride Medium of an AISI 304L Stainless Steel Implanted With Nitrogen and Neon Ions. ...

... Abstract : The rapid, total penetration of a water tank constructed of AISI 304L austenitic stainless steel when filled with apparently innocuous ...

... Title : The Effect of Electrode Vertex Angle on Automatic Tungsten-Inert- Gas Welds for Stainless Steel 304L Plates,. Descriptive ...

... The nitrogen content of the standard 304L alloy was 0.15 wt.% when processed using nitrogen for both backfilling and atomizing, and a modified ...

... pitting corrosion resistance were tested on AISI 304L stainless specimens in hot concentrated sodium, calcium and magnesium chlorides at 105 C ...

... from results that the materials were resistant to stress corrosion cracking in the following diminishing order: XM-19, AISI 316L, 304L, 316, 347, and ...

... Accession Number : ADD126803. Title : Some Observations on Interactions between Unstressed AISI 304L Steel and Zinc or Zinc Oxide,. ...

... Abstract : The hot cracking susceptibility of several austenitic stainless steel filler metals and a Type 304L stainless steel base metal was evaluated ...

... 7. Based on the results of these tcsts, stainless steel 304L and 1100 aluminum appear to be superior to phosphorus deoxidized copper for ... Page 29. ...

Apr 30, 1990 ... corrosion cracking and electrochemistry of protective coatings. BACKGROUND ... 17-4PH annealed, 17-4PH H1150, 304L and 316L. ...

... corrosion rate, crevice corrosion, green density, manganese addition, molybdenum addition, nickel addition, phosphorus addition, pitting corrosion ...

... in types 316, 308 Cb, and 304 L stainless ... parameters used to correlate the creep crack growth ... to correlate well with the rupture time; life estimations ...

... and (5) initial strength and ductility data on selected austenitic stainless steels, 304, 304L, 316, and 316L, after irradiation in the EBR-II reactor to ...

... Title : Interaction Between Creep and Electrochemical Corrosion in Molten Salt Medium: For AISI 304L Stainless Steel in Molten NaCl-CaCl(sub 2 ...

... Title : Influence of State of Stress on the Processing Map for Hot Working of Stainless Steel Type AISI 304L: Compression Versus Torsion. ...

... in AISI 304L stainless steel implanted with phosphorus ions. ... with tantalum and chromium ions at different ... resistance of the ion-implanted steel. ...

... Abstract : Chromium and molybdenum coatings containing solid solutions of carbon and nitrogen were vapor deposited onto steel cylinders (304L ...

... Laboratory MIC evaluations were initiated on a prototype weldment (as-welded 304L stainless steel base metal, 308L filler metal) in the crevice ...

... AISI 304L material again in the modified Sparrow die ... steel nozzle housing at cryogenic temperatures was com- pleted; however, difficulty was being ...

... CrNi steel (AISI 304L), titanium, Nitronic 50, and Sandvik 2R12 components were exposed in the evaporator which was charged with a simulated ...

... drill flank wear associated with a specific number of drilled holes increased ... The major drill wear mechanism in drilling lower porosity P ...

... Abstract : CAUSTIC STRESS CORROSION CRACKING EXPERIMENTS HAVE BEEN CONDUCTED ON TYPE 304, 304L, 316, 316L, AND USS 18 ...

... Report Date : DEC 1972. ... cryoformed), 304L, 321 and 347 stainless steel; A-286 super alloy steel; 2219 and 6061 aluminum; OFHC copper; Monel K ...

... Welding current was maintained in the range of 120 ... into the Type 304L plate and welded with the ... Pd electrodes to achieve all-weld-metal deposits ...

New tanks for storage of low level radioactive wastes will be constructed at the Savannah River Site (SRS) of AISI Type 304L stainless steel (304L). The presence of chlorides and fluorides in the wastes may induce Stress Corrosion Cracking (SCC) in 304L. Constant Extension Rate Tests (CERT) were performed to ...

The susceptibility of austenitic stainless steels to solidification cracking and lack of penetration, two distinct weld characteristics related to the chemical composition of the base material is reviewed.

This paper describes efforts that were undertaken to characterize the stresses induced in resistance pinch welds used to contain high pressure gasses.

... Title : CORROSION OF CONSTRUCTION MATERIALS, TI 125, TI 260, 304 L, URANUS 65, IN CONTACT WITH PLATINUM CATALYSTS IN NITRIC ...

... Mechanical Properties of 18-8 Stainless Steel at Cryogenic Temperatures ... the low-carbon-content 304L was observed at liquid nitrogen temperature ...

These assemblies consisted of uranium mononitride fuel pellets encased ... Uranium mononitride fuel pins were encased in AISI 304L stainless steel capsules . ...

The major products of monomethylhydrazine (MMH) oxidation were methanol, ... stainless steel 304L, galvanized steel and titanium plates with surface areas ...

Mar 1, 2011... were investigated in a metal-powder packed turbular flow reactor at ... stainless steel 304L, galvanized steel and titanium plates with ...

... been recorded in the diet1. Terrestrial A small police outpost was established on the island in 1969. ... 40 birds, but given its high levels of recruitment, this is probably not a serious threat, t...

Tritium permeation is controlled by surface permeation (e.g., cleaning, Pd coating). Tritium at the surface is disassociated. Various 304-L ss after various treatments were characterized, and tritium permeation studies were carried out at Los Alamos. Results were used to order the passivation treatments with regard to permeation resistance.

Rocky Flats is looking for an optimum method for surface treating 304L stainless steel to increase its resistance to tritium permeation. Selected surface treatments were applied to 304L samples. One set of samples was shipped to the Rockwell Corporate Sci...

The corrosive effects of Cr/sup 3+/ and Cr/sup 6+/ in HNO/sub 3/ solutions of various concentrations on types 304L and 309SCb austenitic stainless steel are presented. (W.L.H.)

Effect of ratcheting on fatigue resistance of a stainless steel 304 L, used for reactor vessels, is studied experimentally. Lifetime of samples is reduced if a static constant tensile load (primary loading) is superimposed to cyclic torsion deformations (...

The effect of cold working on critical pitting potential of AISI 316 L and 304 L steels in a buffered physiological solution has been studied. In particular, the importance of deformation degree, orientation of the specimen surface to the deformation direction, and cold working temperature in lowering the critical pitting potential is shown. PMID:873942

Electrolytic charging of hydrogen into Type 304L stainless steel at room temperature and 100C induced partial transformation of the austenite to the same martensitic phases (alpha' (bcc) and epsilon (hcp)) as are formed by cold-working hydrogen-free auste...

Type 304L stainless steel supersaturated with hydrogen gas fails in tension at 200 to 250 exp 0 K by brittle fracture. Fracture surfaces exhibit isolated facets oriented 0 to 30 exp 0 to the tensile axis and have characteristics of cleavage fracture. The ...

Experimental data for material plasticity and failure model calibration and validation were obtained from 304L stainless steel. Model calibration data were taken from smooth tension, notched tension, and compression tests. Model validation data were provided from experiments using thin-walled tube specimens subjected to path dependent combinations of ...

Pitting corrosion has occurred on AISI Type 304L stainless steel (304L) conductivity probes used to monitor liquid levels of gadolinium nitrate neutron poison solutions (GPS). An electrochemical and immersion test program has led to a better understanding...

Prepolished Type 304L stainless steel surfaces are being specified for replacement of some equipment in the 221-H Canyon Building at the Savannah River Site. A prepolished stainless steel surface picks up less contamination than a hot-rolled and pickled s...

Two sets of cap-to-header EB welds in Type 304L exhibited a significant difference in hot cracking susceptibility which could be associated with the heat-to-heat variations in chemical composition and the resultant change in solidification behavior of the...

Y-12 Plant is seeking to minimize the generation of hazardous wastes in its operations. The standard procedure for electroplating a thin layer of copper on type 304L stainless steel requires several aqueous pretreatment steps which generate Resource Conservation and Recovery Act (RCRA) hazardous wastes. We have evaluated a more environmentally acceptable ...

AA 1050 Aluminium, AISI 304L and AISI 316L austenitic stainless steel were deformed at different strain and strain path. Deformed microstructure in AISI 304L and AISI 316L austenitic stainless steel shows significant amount of deformation twin and Strain Induced Martensite (SIM). AA 1050 Aluminium shows grain ...

A bench-top energy dispersive X-ray diffraction (EDXRD) system, utilising the polychromatic bremsstrahlung continuum of a conventional industrial X-ray tube in conjunction with a HPGe detector, has been developed to measure stress-induced changes in lattice spacings in samples of 304 L austenitic stainless steel. The system has been used for mapping the ...

The hot cracking susceptibility of several austenutuc stainless steel filler wires and a Type 304L base material has been evaluated using both the VARESTRAINT Test and a modified patch test. In general, alloys which solidified with ferrite as the primary ...

Laboratory concretes containing high-activity powdered plant wastes have adequate compressive strength, similar to that of concretes containing simulated waste. Type 304L stainless steel was shown at laboratory scale to be satisfactory for use as a melter...

The effects of tritium on the fracture toughness properties of Type 304L and Type 21-6-9 stainless steel weldments were measured. Weldments were tritium-charged-and-aged and then tested in order to measure the effect of the increasing decay helium content...

Recommended values of the thermodynamic and transport properties of stainless steels Type 304L and Type 316L are given for temperatures from 300 to 3000 exp 0 K. The properties in the solid region were obtained by extrapolating available experimental data...

... Personal Author(s) : Tortorelli,PF ; DeVan,JH. ... Cr alloys by draw salt (60 wt % sodium nitrate-40 ... of alloy 800 and types 304L and 316 stainless steel. ...

... Title : The Effect of Temperature (25-289 C) on Pit Initiation in Single Phase and Duplex 304L Stainless Steels in 100 ppm Cl(super -) Solution,. ...

The effect of temperature on the tensile properties of annealed 304L stainless steel and HERF 304L stainless steel forgings was determined by completing experiments over the moderate range of -40 F to 160 F. Temperature effects were more significant in the annealed material than the HERF material. The tensile yield ...

Nd:YAG laser cleaning of metal oxides from 304L stainless steel surfaces has been characterized. Thin chromium oxide films can be completely removed from the surface using a single 10 nsec pulse of laser radiation with an average surface irradiance greate...

It is the goal of the work presented here to develop an upset welding process for fabrication of small vessels and to demonstrate the advantages of the process. Major emphasis has been directed toward welding 304L stainless steel, although the weldability...

... or by adjusting the sealing/crystallization (or sealing/devitrification) cycle that is routinely used in forming seals between LAS glass-ceramic and ...

The DPSOL 208-W-104 standard specifies that stainless steel use and procurement at SRP be limited to type 304L, corrosion evaluated. Adopting this proposal would be likely to introduce more misapplication of material than it would correct, and it would in...

... MHF-7. Eleven metallic materials of construction were included in the program: stainless steel 304L, 316, 321, 347, and 17-7PH; aluminum 1100-0 ...

Details are shown for two 304-L stainless steel product condensers used in the Purex process. The drawing includes notes of design, fabrication, and test data. (PMA)

This standard specifies that type 304L stainless steel, corrosion evaluated, will be used in fabrication or repair of all equipment for handling the primary process streams at SRP in which the stainless steel components are incorporated by welding or are ...

... Abstract : Two 304L and three Nitronic 40 (21-6-9) high energy rate processed forgings were studied to determine interrelationships that exist ...

... Abstract : Four commercial alloys---hastelloy c-4, alloy 1.4306s (ss304l), incoloy 800h, and incoloy 825---were studied for their oxidation behavior ...

Cracking of the stainless steel layer of coextruded 304L/SA210 recovery boiler floor tubes has been observed in an increasing number of black liquor recovery boilers. Because failure of such tubes is a serious safety concern as well as an economic issue, ...

A review of the literature on low temperature sensitization (LTS) has been conducted to determine if LTS-related microstructural changes can occur in Type 304L stainless steel within the times and temperatures associated with nuclear waste storage. It was found that Type 304L stainless steel is susceptible to ...

304L stainless steel the average notch-in-weld (without backing strip) .... (410 MN/sq m) for specimens loaded transverse to the rolling direction. ...

stainless steel (UNS S17400) tube section joined to a 1� in diameter 304L ... composed of 17-4 PH stainless steel and 304L stainless steel. ...

Laser deposits fabricated from two different compositions of 304L stainless steel powder were characterized to determine the nature of the solidification and solid state transformations. One of the goals of this work was to determine to what extent novel ...

... at 4, 77 and 293 K are compared to the commercial alloys SUS 304L, 316L, 304LN, 316LN, 310S, AISI 205, A286 and Nitronic grades 33 and 40. ...

Following a review of the principle of the method using the radioactive decay of tritium to helium 3 to introduce helium into thick metallic test specimens, the results of preliminary tests performed on austenitic steels are presented. 304L and 316 steel ...

A method has been devised which will allow the joining of uranium to steel by fusion welding through the use of an intermediate material. Uranium-0.5 titanium was joined to AISI 304L stainless steel by using a vanadium insert. Also, a method is now availa...

... Accession Number : ADD128691. Title : Ion-Beam Profiling of (super 3)He in Tritium-Exposed Type 304L and Type 21-6-9 Stainless Steels,. ...

Abrasion behavior is studied in commercial stainless steels of different class compositions by standard. The work achieved guides in structural analysis of superficial coat formed and its relation with abrasion variables, load and velocity. The abrasion i...

The effect of hydrogen on the burst properties Type 304L stainless steel vessels was investigated. The purpose of the study was to compare the burst properties of hydrogen-exposed stainless steel vessels burst with different media: water, helium gas, or d...

Unstable austenitic stainless steels undergo a strain-induced martensite transformation. The effect of hydrogen on this transformation is not well understood. Some researchers believe that hydrogen makes the transformation to martensite more difficult bec...

Various methods are being investigated for permanent disposal of high level nuclear wastes. In one process the waste is incorporated in molten glass and poured into type 304-L stainless steel canisters which provide the first layer of a multilayer contain...

This paper describes the development of a canister sealing method which led to a proposed production process for making the initial closure on nuclear wastes canisters of Type 304-L stainless steel. The welding machine is suited for use on a remotely operated facility. 1 ref.

The mechanical and thermal fatigue of authentic stainless steels was examined for the maximum temperature range expected in coextruded floor tubes of recovery boilers to determine the likelihood that the cracking in the 304L stainless steel cladding could...

... CrNi-steels of AISI Type 304L (DIN W.No.1.4306) are generally applied as vessel, container and tubing materials in reprocessing plants of nuclear ...

A variation of FSW, friction stir processing (FSP), has been used to modify selected regions of materials to enhance specific properties while eliminating fusion welding defects such as porosity, cracking, and the cast microstructure. The combination of f...

A program was recently completed to develop a quantitative method (electrochemical potentiokinetic reactivation or EPR) for nondestructively measuring the degree of sensitization in American Iron and Steel Institute AISI-304, -304L, -316, and -316L stainl...

... 1.3.5 Crack propagation under combined axial-torsion loading 26 2 AISI 304L AUSTENITIC STAINLESS STEEL 27 2.1 MATERIAL 28 ...

... of AISI 304L, 316L, 316, 430, 409, Sandvik 1802, SX 3CR12, and a mild steel was performed in three cultures of sulfate-reducing bacteria (SRB). ...

... CONTENTS (cont'd) Section Page Stainless Steel Type 304L 140 Steel, Mild EN3 142 Tantalum 144 Teflon 146 Thallium 148 Thorium 150 Tin 152 ...

To simulate braze joints, qualitative x-ray mapping of the elemental interactions between brazing alloys and two common types of stainless steels was performed via the electron microprobe. In general both steels, Types 304L and 21-6-9, react with a partic...

AISI Type 304L (304L) stainless steel was recommended as a suitable material of construction for the new Hazardous Low Level Waste Processing Tanks (HLLWPT). This report documents the second phase of a coupon immersion test program to determine the susceptibility of 304L to localized attack in a variety of ...

This study concentrates on hydrogen induced changes in commercial 304L, 316L and 310 austenitic stainless steels, as well as experimental austenitic TRIP steel. Hydrogen was introduced by cathodic charging at room temperature, followed immediately, either...

o The filter is wire mesh constructed of CRES 304L, 316L, 321 or 347 material with end fittings welded to wire mesh element. The filter is supported by a ...

The publication presents the papers delivered in a workshop about trials and selection of the steels and their thermal treatments for stamping industry.

... including a direct microscopic examination and sodium nitrate flotation, completed during quarantine in May 2002 were negative ... negative for acid-fast staining organisms. Four fecal flotation examinati...

Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. Aguirre and J. Plotz. Instituto Antartico Argentino and Alfred Wegener Institut ...

-- 116. Bhattachary, D. 1998. Enviromental values: a critical ap� praisal of cost�benefit analysis

Environmental impact assessment associated with the salvage operation of the ... Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. ...

grant (FA9550-04-1-0117), an AFRL grant via Veridian and an NSF grant (IIS-0534707). We thank A. Acero

The purpose of the publication is to explain in an easy way the traditional process of steel manufacturing, and to promote the interest of the foundrymen working without large investment.

Many tropical fruits are rich in anthocyanins, though limited information is available about the characterization and quantification of these anthocyanins. The identification of anthocyanin pigments in four tropical fruits was determined by ion trap mass spectrometry. Fruits studied included acero...

Two sets of vessels for tritium storage tests were fabricated using upset welding. A solid-state resistance upset weld was used to join the two halves of each vessel at the girth. The vessels differ from production reservoirs in design, material, and fabrication process. One set was made from forged 304L stainless steel and the other from forged 316L ...

Post-irradiation deformation behavior in Ni-ion-irradiated 304L stainless steel (SS) is examined as a function of radiation dose and deformation temperature. For similar strain levels, specimens exhibit a transition from dislocation slip to deformation-induced twinning at 25C with increasing radiation dose. At 288C twinning is no longer observed and highly ...

The corrosion behavior of type 304L and type 316L austenitic stainless steels, produced by powder metallurgy, when exposed to a ferric chloride solution was studied. The exposures were conducted according to ASTM G48-76, Method A. The influence of ferric chloride concentration and exposure temperature on the corrosion kinetics of these materials was ...

Fast reactor irradiated AISI 304L stainless steel tubing was fusion-welded using conventional inert gas-tungsten arc welding (GTAW) procedures which were adapted for remote operation. Metallographic examination of weld joints sometimes revealed porosity in the weld zone and cracks at the tube inner wall within the heat-affected zone. A stress analysis was ...

The grain size and strain dependence of work hardening in Type 304L stainless steel were analyzed between 200 and 250 K where hydrogen damage is greatest. Tensile data were obtained for specimens of several grain sizes, both with and without prior exposure to hydrogen gas at 69 MPa pressure. The analysis suggests that hydrogen has little influence on ...

AISI Type 304L stainless steel will be the material of construction for hazardous waste storage tanks. The corrosion behavior of 304L was characterized in simulated waste solutions using potentiodynamic polarization, electrochemical impedance spectroscopy and long term immersion tests. The results were correlated to assess the use of corrosion ...

AISI Type 304L stainless steel will be the material of construction for hazardous waste storage tanks. The corrosion behavior of 304L was characterized in simulated waste solutions using potentiodynamic polarization, electrochemical impedance spectroscopy and long term immersion tests. The results were correlated to assess the use of corrosion ...

Prepolished Type 304L stainless steel surfaces are being specified for replacement of some equipment in the 221-H Canyon Building at the Savannah River Site. A prepolished stainless steel surface picks up less contamination than a hot-rolled and pickled surface and is easier to decontaminate; therefore, less waste is generated. Surface-characterization ...

A number of stainless steels and the new alloy Ni-Onel were tested in solutions 8N in nitric acid and 0.2N in chloride. Stainless steels Types 304L, 316, 309S Nb, and 329 were all resistant to the liquid and hot vapor, but only Type 329 showed good resistance to the condensing vapors from these solutions. The resistance of this steel was about ...

Studies were made on the safe handling of HHO/sub 3/-HF solutions in 304 L and 309SCb stainless-steel equipment under carefully controlled conditions. The corrosion behavior of both wrought and welded 304L and 309SCb was investigated in various HNO/sub 3/--HF solutions, ranging in HNO/sub 3/ ...

Corrosion data for types 304L, 309SCb, and 347 stainless steel were obtained in a number of process vessels in the ORNL Thorex pilot plant during the development and the production-development periods of operation occurring between December 1954 and September 1956. Stressed corrosion-test specimens were exposed in the batch dissolver tank, the ...

Microstructural analyses by advanced metallographic techniques were conducted on mockup welds and a cracked BWR core shroud weld fabricated from Type 304L stainless steel. heat-affected zones of the shroud weld and mockup shielded-metal-arc welds were free of grain-boundary carbide, martensite, delta ferrite, or Cr depletion near grain boundaries. However, ...

Post machining operations such as borescope inspection can cause linear indications down the length of the bore of fill stems. Often these indications are removed or obscured using rotary wire brushing. This study evaluated the effect this mechanical operation may have on pinch weld quality when relatively cold welds were made. A total of four stems with two levels of brushing of both Type ...

New waste tanks which handle hazardous low-level waste were proposed to be constructed in H-area. The candidate material for the tanks is AISI Type 304L (304L) stainless steel. Constant extension rate tensile (CERT) tests were conducted to assess the susceptibility of 304L to stress-corrosion cracking (SCC) in ...

High strength (100 ksi) High Energy-release Rate Forged (HERF) 304L stainless steel is being considered for future weapon components. The potential yield anisotropy of this HERF 304L stainless steel was investigated via biaxial loading experiments. Biaxial tensile tests with proportional loading were performed on ...

The performance of stainless steel as the container in hydride storage bed systems has been evaluated, primarily using scanning electron microscopy. No adverse reaction between Type 304L stainless steel and either LaNi{sub 5{minus}x},Al{sub x}, or palladium supported on Kieselguhr granules (silica) during exposure in hydrogen was found in examination of ...

Rocky Flats is looking for an optimum method for surface treating 304L stainless steel to increase its resistance to tritium permeation. Selected surface treatments were applied to 304L samples. One set of samples was shipped to the Rockwell Corporate Science Center for alternate characterization analysis. Another set was sent to Los Alamos National ...

This volume surveys the effects of welding on the degradation modes of three austenitic alloys: Types 304L and 316L stainless steels and Alloy 825. These materials are candidates for the fabrication of containers for the long-term storage of high-level nuclear waste. The metallurgical characteristics of fusion welds are reviewed here and related to ...

The surface of tritiated Type 304L stainless steel is decontaminated by isotopic exchange with the hydrogen generated in an electrolyzer. This steel had previously been exposed to tritium in a tritium gas facility for several years. The electrolyzer for the decontamination uses a conducting solid polymer electrolyte made of a Nafion membrane. The cathode ...

In stainless steel equipment exposed to tritium, embrittlement is thought to involve interactions between internal He and the complex triaxial stress state that arises when necking starts. Recent efforts have been directed at determining He concentration thresholds for this effect in several austenitic stainless steels. This report describes results of tests on 304L stainless steel containing low ...

A very simple and safe mechanical properties testing procedure to evaluate hydrogen environment embrittlement (HEE) in the environment of high pressure and low temperature hydrogen has been developed. In this method, the high-pressure hydrogen environment is produced just inside the hole in the specimen. In this work, the effect of HEE on fatigue property for an austenitic stainless steel ...

Three dimensional finite element simulations of thermal and mechanical response of a 304 L stainless steel pipe subjected to a circumferential autogenous gas tungsten arc weld were used to predict residual stresses in the pipe. Energy is input into the thermal model using a volumetric heat source. Temperature histories from the thermal analysis are used as ...

The effectiveness of commercially available decontamination solutions was compared with the effectiveness of 10% oxalic acid in controlled laboratory tests. Type 304L stainless steel and Inconel 625 specimens were used. Contamination was sludge from Savannah River Plant (SRP) high level waste tanks. Measured amounts of contamination were placed on each ...

Corrosion rates and the mode of corrosion attack form a most important basis for selection of canister materials and design of a nuclear waste package. Type 304L stainless steel was selected as the reference material for canister fabrication because of its generally excellent corrosion resistance in water, steam and air. However, ...

Pitting corrosion has occurred on AISI Type 304L stainless steel (304L) conductivity probes used to monitor liquid levels of gadolinium nitrate neutron poison solutions (GPS). An electrochemical and immersion test program has led to a better understanding of the cause of corrosion of 304L probes. Results indicate ...

Pitting corrosion has occurred on AISI Type 304L stainless steel (304L) conductivity probes used to monitor liquid levels of gadolinium nitrate neutron poison solutions (GPS). An electrochemical and immersion test program has led to a better understanding of the cause of corrosion of 304L probes. Results indicate ...

Batteries designed for the defense satellite communications system were modified to meet increased power requirements. A stainless steel case for the cell, approximately 4 inches wide, 4 1/2 inches high and 1 inch thick, with a weld down a narrow edge, has 12 mil 304-L stainless steel side walls and a 19 mil 304-L ...

The surface morphology of grades 304L and 316LN stainless steels, after low-temperature bake-out process and vacuum annealing, has been studied by atomic force microscopy (AFM) and scanning tunnelling microscopy (STM). The local elemental composition on the surface before and after thermal treatment has been investigated by atom probe (AP) depth profiling ...

The technique of analytical electron microscopy in a Scanning Transmission Electron Microscope (STEM) fitted with an x-ray spectrometer is described. This high spatial resolution microanalysis technique is applied to duplex Type 304L stainless steel weld metal. Small inclusions in these steels may be either iron-rich or manganese-rich silicates and may ...

This report summarizes the results of a series of laser welds made between 2003 and 2005 at Lawrence Livermore National Laboratory (LLNL). The results are a compilation of several, previously unpublished, internal LLNL reports covering the laser welding o...

criteria based on creep ductility, initiation of tertiary creep and time to rupture would limit at 650�C, design criteria based on creep ductility, initiation of tertiary creep and time to rupture IRRADIATION-INDUCED CREEP OF HELIUM PRESSURIZED 304L STAINLESS STEEL CAPSULES," J. Nucl. Mater. 79 (1979) 395

Cutting tests were carried out on stainless steel (304L) in air and under 7 meters of water (application to reactor pools), using CO(sub 2) and YAG lasers; results concerned cutting speed, quality of cut, cutting thickness. By-products of sectioning opera...

Six alloys have been selected as candidate container materials for the storage of high-level nuclear waste at the proposed Yucca mountain site in Nevada. These materials are Type 304L stainless steel (SS). Type 316L SS, Incoloy 825, phosphorus-deoxidized ...

Six alloys have been selected as candidate container materials for the storage of high-level nuclear waste at the proposed Yucca Mountain site in Nevada. These materials are Type 304L stainless steel (SS), Type 316L SS, Incology 825, P-deoxidized Cu, Cu-3...

Types 304L and 316L stainless steel (SS), Incoloy 825, Cu, Cu-30%Ni, and Cu-7%Al have been selected as candidate materials for the containment of high-level nuclear waste at the proposed Yucca Mountain Site in Nevada. The susceptibility of these materials...

Types 304L and 316L stainless steel (SS), Incoloy 825, Cu, Cu-30%Ni, and Cu-7%Al have been selected as candidate materials for the containment of high-level nuclear waste at the proposed Yucca Mountain Site in Nevada. The susceptibility of these materials to stress corrosion cracking has been investigated by slow-strain-rate tests (SSRTs) in water which ...

The weight loss behavior of Type 304L stainless steel in liquid lithium of high nitrogen concentrations was determined and empirical weight loss expressions as a function of temperature and nitrogen concentration were found. The nitrogen concentration was found not to alter the thermally activated mechanism, but to influence the weight loss rate through a ...

Vacuum induction brazing of refractory metal alloys to 304L stainless steel with nickel-base alloys was investigated. This report details the results for Mo and Mo-41 weight percent Re refractory alloys. As-brazed and sodium exposed (800/sup 0/C/130 hour) samples were evaluated. Work is ongoing for Mo, Re, Ta and W alloys.

Under the aspect of application in reprocessing plants for nuclear fuel the ELC-quality of the Cr Ni stainless steel AISI 304, additionally purified by the electroslag-remelting-process, was tested as forged and rolled (sheet) material in nitric acid of d...

The strain-induced martensitic phase transformation in a metastable 304 L stainless steel under torsional deformation was investigated using synchrotron X-ray diffraction. The measured radial distribution of the martensite phase fraction in a solid cylindrical specimen agrees well with the prediction based on a combination of transformation kinetics and a ...

Techniques, parameters, and equipment for resistance seam welding of 304 L, 316 L, and 347 stainless steel heattreated or cold-deformed sheets with improved impermeability, rupture, and mechanical resistance are discussed. (Rev. Metal Lit., 20: No. 2, Feb. 1963)

Two 304L and three Nitronic 40 (21-6-9) high energy rate processed forgings were studied to determine interrelationships that exist between forging history, mechanical properties, microstructure, macrostructure, and substructure. A striking observation is...

SS 316L. 12598. SS 317L. 12290. ES-2205. 11913. SS. 304L. 11383. HASTELLOY. B-2. 3779. MONEL. 400. 652. 43. Page 21 .... and Bode plots for SS 316L (a,b). ...

Results of a metallurgical examination of a type 304L stainless steel canister that had been used to store spent nuclear fuel in an underground granite formation for about three years are reported. No observable corrosion or cracking were found. The results are applied to waste packages in a potential high level nuclear waste repository in tuff. 10 refs., ...

Results of a metallurgical examination of a type 304L stainless steel canister that had been used to store spent nuclear fuel in an underground granite formation for about three years are reported. No observable corrosion or cracking were found. The resul...

The objectives identified in the test specification for the vendor CO2 blasting tests are to determine the ability of CO2 blasting to remove a measurable amount of surface material from Type 304L stainless steel and to identify the approximate blasting parameters for future testing on radioactively contaminated coupons.

Scanning tunneling microscopy (STM) has been finding growing application for in situ surface studies of various substrates immersed in solutions. Several reports have further demonstrated the possibility of performing the STM imaging under well-defined el...

Three materials of construction for steam tubes used in the evaporation of high level radioactive waste were tested under heat flux conditions, referred to as hot-wall tests. The materials were type 304L stainless steel alloy C276, and alloy G3. Non-radioactive acidic and alkaline salt solutions containing halides and mercury simulated different high level ...

for the AISI 304 stainless steel nitrided by low energy � high flux implantation at 400� C [8]. As a result formed upon plasma nitriding of AISI 304L stainless steel [23]. Therefore, in the present work we intend of nitridation treatments mainly on tool and stainless steels [1-7] are well known aiming to improve

Machining of the A106B GTA and EB welded specimens was completed. Laser welding of the AISI 304L and ASTM A106B materials is continuing. Tensile testing of the ASTM A106B EB welded specimens was initiated and completed. Testing of the ASTM A106B EB welded...

J-integral fracture mechanics techniques and scanning electron microscopy observations were used to investigate the effects of tritium and its decay product, helium-3, on Types 304L, 316L, 21-6-9, A286, and JBK-75 (Modified A286) stainless steels. Tritium...

The effects of hydrogen on the fracture toughness properties of upset welded Type 304L stainless steel were measured and compared to those measured previously for as-received and as-welded steels. The results showed that the upset welded steels had good f...

Hydrogen dissolved in the specimens increased the grain size dependence of the flow stress. The back stress of dislocation pileups controls work hardening rather than the forward stress across grain boundaries. Hydrogen renders dislocation intersection more difficult. 9 refs.

Three nominally 25-mm (1-in) thick shielded metal-arc welds were prepared from 304L base plate with 308 filler material, to obtain three different ferrite levels (4, 8, and 12%). Portions of these welds were then aged at 343C for 3000, 10000, and 20000 ho...

International Symposium on Rhenium and Rhenium Alloys .... 2200 ?C wall temperature, without failure. A flight-type, 22-N Ir/Re engine ... pressed and sintered Re is then increased to above 99 percent via a hot .... 304L SS and Re- to-Hastelloy B2 joints were achieved by using a parent metal braze technique. ...

Status of the dissolution step for reprocessing the HTGR fuels from the Fort St. Vrain reactor is reported. The feasibility and desirability of (1) utilizing a batch 304L stainless steel dissolver and (2) boiling Thorex acid (13 M HNO sub 3 /0.05 M HF/0.1...

Contour and surface plots of S and T parameters were generated for a 2D slice of four 304L steel specimens inserted in a 5 cm � 5 cm plastic holder. This was achieved by performing Doppler broadening spectroscopy (DOBS) coupled with in situ pair-production using a 1 kHz repetition rate linear accelerator (LINAC) at the physics department of Idaho State ...

Fracture-mechanics crack growth tests were conducted on 25.4-mm-thick compact tension specimens of Types 304L and 316L Stainless steel and Incoloy 825 at 93(degrees)C and 1 atmosphere of pressure in simulated J-13 well water, which is representative of th...

Nineteen alloys were evaluated as possible materials of construction for steam heating coils, the dissolver vessel, and the off-gas system of proposed facilities to process thorium and uranium fuels. Commercially available alloys were found that are satis...

We have studied the scratch and wear behaviour of seven different surface treatments on an AISI 304L stainless steel substrate. These surface treatments have been elaborated by different processes: physical vapour deposition, ion nitriding, hypersonic pro...

The corrosion of various metals that could be used to contain nitric acid solutions of Pu-238 has been studied. Tantalum and tantalum/2.5% tungsten resisted the test solvent better than 304L stainless steel and several INCONEL alloys. The solvent used to imitate nitric acid solutions of Pu-238 contained 70% nitric acid, hydrofluoric acid, and ammonium ...

The corrosion of various metals that could be used to contain nitric acid solutions of Pu-238 has been studied. Tantalum and tantalum/2.5% tungsten resisted the test solvent better than 304L stainless steel and several INCONEL alloys. The solvent used to imitate nitric acid solutions of Pu-238 contained 70% nitric acid, hydrofluoric acid, and ammonium ...

A comparison of laser welds in types 304L and 316 stainless steel was performed. There were no significant differences in the weld bead characteristics. The effects of the laser parameters on the welds were also examined. When the pulse length is increased, the spot size and spot overlap decreases, but the penetration remains the same. Increases in ...

Stainless steel, type 304L, was deformed at room temperature using the two processes of semi-piercing and cold-rolling and then annealed at various temperatures and times. The three metallurgical areas of work hardening, age hardening, and anneal softening were observed and characterized using metallography techniques of macrohardness, optical and ...

To simulate braze joints, qualitative x-ray mapping of the elemental interactions between brazing alloys and two common types of stainless steels was performed via the electron microprobe. In general both steels, Types 304L and 21- 6-9, react with a particular brazing alloy in a similar manner, the exceptions being the gold--copper brazing alloys ...

Potassium hydroxide (KOH) stress corrosion cracking (SCC) caused failure of a type 304L (UNS S30403) stainless steel bypass in a steam methane reforming unit. KOH was from a potassium-promoted catalyst. A test program determined that hydrogen and/or carbon monoxide (CO) were necessary to promote this cracking at relatively low temperatures. Sodium ...

Stainless steels of type 18-8 have developed into commercial products, such as: AISI (U.S.A. system) 302, 303, 304L, 321 etc. Some of them contain approx 0.10%C, other less. The steel is not clean because of the existence of the intermetallic compounds of...

An internal state variable constitutive model coupled with a ductile void growth model is applied in two finite element simulations of welding. Shrinkage of a 304 L stainless steel pipe due to multipass gas tungsten arc welds is presented as an example of tracking distortion far from the weld. Weld solidification cracking in Al-6061 disks is presented as ...

The deflection of Type 304L austenitic stainless steel can lids on inner 3013 containers is monitored to identify any buildup of pressure within the container. This paper provides the technical basis to conclude that creep-induced deformation of these lids will be insignificant unless the temperature of storage exceeds 400 C. This conclusion is based on ...

Stainless steel alloys, 304L and 316L, were corrosion tested in representative radioactive samples of three actual Hanford tank waste solutions (Tanks AW-101, C-104, AN-107). Both the 304L and 316L exhibited good corrosion performance when immersed in boi...

...304(l)(1) any navigable waters for which any person submits...which shows that applicable water quality standards will...opportunity to comment on the waters, point sources, or ICSs...Administrator shall publish a notice of availability, in a daily or weekly...

B and W Hanford Company have two Oak Ridge National Laboratory (ORNL) Type 4 canisters filled with cesium chloride (CsCl) originally produced at WESF (Waste Encapsulation and Storage Facility). These canisters are constructed of 304L stainless steel per d...

bead-on-plate type spot welds and then evaluated by cyclic polarization test and long term crevice on welding parameters, to 100% in the base metal. A hot-annealed type 304L stainless steel plate was used of their corrosion resistance. Components are often joined by arc welding when fabricated into com- plex structures