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...

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...

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...

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. ...

... Title : ELECTROCHEMICAL CHARACTERISTICS OF AISI 304 AND 316 STAINLESS STEELS IN FRESH WATER AS FUNCTIONS OF CHLORIDE ...

... Title : Effect of Crevice Geometry on the Corrosion of AISI 304 and 316 in Marine Environments. Descriptive Note : Journal article,. ...

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 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 : The Susceptibility of Type AISI 304 Stainless Steel to Transgranular and Intergranular SCC in 40% MgCl(sub 2) Solution at 100 C,. ...

... Accession Number : ADD138680. Title : The Corrosion Behaviour of AISI 304 Stainless Steel in Methanol-H(sub 2)SO(sub 4) Mixtures,. ...

... Accession Number : ADD130127. Title : Stress Relaxation in Bending of Type AISI 304 and A-286 Steels at 773 K,. Corporate Author : ...

... Title : Stress Corrosion Cracking of Sensitized AISI 304 Stainless Steel in High-Temperature Sodium Sulfate Solutions,. ...

... Title : Stress Corrosion Cracking of AISI 304 and AISI 316 Stainless Steels in Oxygen Containing Chloride Solutions at 200 C,. ...

... Title : Pitting Corrosion of AISI 304 and 316 Austenitic Stainless Steels Covered with Anodic Oxide Films,. Descriptive Note : Journal Article,. ...

... ADD148481. Title : Microstructure and Corrosion of Nitrogen Implanted AISI 304 Stainless Steel. Descriptive Note : Journal article,. ...

... 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 : The effect of low molecular weight carboxylic acids on the intergranular stress corrosion cracking (IGSCC) of sensitized AISI 304 stainless ...

... Accession Number : ADD114109. Title : ELIMINATION OF SCC OF HAZ IN WELDED AISI 304 STAINLESS STEEL PIPING IN BWR APPLICATION,. ...

... Accession Number : ADD140052. Title : Determination of Corrosion of Stainless Steel (AISI 304) by Mixed Vapours of HCl and HNO(sub 3),. ...

... SUBSTRUCTURE, CARBIDES AND THE DEFORMATION MECHANISM MAP FOR AISI 304 STAINLESS STEEL' (INCLUDING AUTHOR'S REPLY ...

... 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 : ...

Polarization curves for the Incoloy 800 and for the stainless steel AISI 304 were obtained with static and rotational electrodes. The electrolytes employed showed growing concentrations of mixtures as iron, nickel and chromium chlorides their proportion b...

... Title : Stress Corrosion Cracking of AISI 304 and AISI 316 Austenitic Stainless Steels in HCl and H(sub 2)SO(sub 4) Solutions--Prediction of Time-to ...

... Steel: Corrosion, Passivity, and Pitting in Alcohols + H(sub 2)SO(sub ... AISI 304 stainless steel (SS) in alcoholic solutions (ethanol, iso-propanol, and t ...

The sequence of microbiofouling settlement on AISI 304 stain steel samples exposed to polluted harbor sea water of a power cooling water intake is studied. The first sites of bacterial colonization are followed by means of scanning electron microscopy dur...

... Abstract : In this paper the effect of nitrogen is incorporated into the thermodynamic model by means of the free energy interaction coefficients ...

... Title : The Effect of Nitrogen and Carbon on the Stress Corrosion Cracking Performance of Sensitized AISI 304 Stainless Steel in Chloride and ...

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

... Title : STRESS CORROSION CRACKING REGIONS ON CONTOUR MAPS OF DISSOLUTION RATES FOR AISI 304 STAINLESS STEEL IN ...

... behavior of this material when retested in creep were investigated. The results were analyzed by taking into account the structural modifications ...

... Title : Characterization and Dissolution of Deposited Magnetite Films on AISI 304 Stainless Steel Surfaces in EDTA and EDTA/Oxalate Solutions,. ...

... HARDENING AND SOFTENING OF ANNEALED AND 9%-PRESTRAINED AISI 304 STAINLESS STEEL DURING HIGH STRAIN CYCLING AT ...

Cathodic hydrogen charging of type AISI 304 stainless steel modified its austenitic structure, giving rise to the formation of two new martensitic phases and the appearance of cracks, in most cases delayed. As electrolyte a 1 N H(sub 2) S O(sub 4) solutio...

In this paper the effect of nitrogen is incorporated into the thermodynamic model by means of the free energy interaction coefficients of nitrogen with chromium and carbon. Results of electrochemical potentiokinetic reactivation (EPR) tests and analytical electron microscopy (AEM) investigations in which the effects of nitrogen additions on the sensitization kinetics of AISI ...

... Title : Tribology and Surface Mechanical Properties of the Oxide Film Formed by Excimer Laser Surface Treatment of AISI 304 Stainless Steel. ...

... 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 : Coatings of alumina were deposited on Incoloy 800H and AISI 304 by means of metal organic chemical vapor deposition ...

... bicarbonate solution at various temperatures from 25 - 90 C using AISI 304, AISI 316, Incoloy, Inconel 600, Monel 400 and Hastelloy C samples by ...

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

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

... Pagination or Media Count : 21. ... EMBRITTLEMENT IN SHORT TERM TESTS ON AISI 304 STAINLESS STEEL AT 550 C IN SODIUM LED TO THE ...

... Accession Number : ADD126706. Title : Tensile and Fracture Properties of Manganese-Modified AISI 304 Type Stainless Steel,. ...

... The spring alloy most easily obtainable at the lowest cost and with the greatest resistance to sulfide stress cracking was Hastelloy C-276. ...

... Abstract : Studies were made on austenitic stainless steel types AISI 304, 310, 316, and 321, to determine their resistance to cyclic oxidation and to ...

... The results indicated that both copper and lead ions enhance IGSCC susceptibility ... Cupric ion exerts its most severe effect at a concentration of ...

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

... Title : Sliding Properties of Coevaporated and Nitrogen-Implanted Pt(sub 50)Ti(sub 50) Films on AISI 304 Stainless Steel,. ...

... Corporate Author : Personal Author(s) : Asakukra, Y. ; Karasawa, H. ; Sakagami, M. ; Uchida, S. Report Date : FEB 1989. ...

... Abstract : AISI 304 stainless was converted to the amorphous state by introducing at least 10% tungsten or titanium into the steel by high-rate ...

... Title : Processing Maps for Hot Working of Commercial Grade Wrought Stainless Steel Type AISI 304. Descriptive Note : Journal article,. ...

... are of the same order of magnitude at temperatures below 650 K. Subsequent oxidation results in an iron oxide on top of a chromium oxide layer. ...

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

... 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. ...

... 24 h, however, the alloy containing 4.45% silicon had a corrosion rate approximately two orders of magnitude less than that of AISI 304 SSs in the ...

... Abstract : The influence of cold drawing and rolling on the initial oxidation behavior of stainless steel AISI 304 has been studied in an UHV system ...

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

Low Cr steels AISI 41410, AISI 4340, and high Cr austenitic stainless steels AISI 304, AISI 316 were

... Title : Fracture and Strength Properties of Selected Austenitic Stainless Steels at Cryogenic ... for AISI 304, 316, 304LN and 316LN stainlesses along ...

... stressing at 20kHz at low stress intensity levels was used to produce fatigue cracking in pure copper, AISI 304 and a mild steel at 77 and 293 K ...

... 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 ...

... I) values. Crack growth rates were also measured on welded and post-weld heat treated specimens. An internal instrumented ...

... Surface residual stresses were measured by x-rays on AISI 304 pipe specimens after various machining and polishing treatments. Stress corrosion ...

... ADD120605. Title : Effects of Neutron Irradiation on the Tensile Properties of the Stainless Steel DIN 1.4948 (Similar to AISI 304),. ...

... Title : Effect of Potential on the Corrosion Fatigue Crack Growth Rate in AISI 304 Stainless Steel in Sodium Sulfate Solution at 250 C,. ...

... implantation on friction and wear behavior of AISI 304, AISI 1010 and D2 tool steel has been presented. The stainless steel was implanted with N ...

... Title : Effect of Cooling Rate and Subsequent Plastic Deformation on the Corrosion Rate of AISI 304 in Boiling Nitric Acid,. Corporate Author : ...

... Abstract : A detailed study of AISI 304 and 316 stainless steels (SSs) has been conducted to correlate the degree of sensitization (DOS) measured ...

... AISI 304 stainless steel was studied in air-saturated pure water and in air-saturated acidified and alkaline 0.01 M sodium sulfate solutions under ...

... contained information about, utilized, or discussed these subjects: materials and material types: aisi 1020, aisi 303, aisi 304, cast iron, stellite 21 ...

... Abstract : Cavitation erosion resistance was evaluated for the following steels: BS 431S29 and DIN 4112 martensitic steels; AISI 304, and AISI 316 ...

... alloy suffered nitriding and decarburization, and stainless steels such as AISI 304, 316L, 329, 310, 321, and 347, and also SLX-254 and HV-9A ...

... Title : Application of a Slip Dissolution-Repassivation Model for Stress Corrosion Cracking of AISI 304 Stainless Steel in a Boiling 42% MgCl(sub 2 ...

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

... ADD137858. Title : A Comparison of Interfacial Attack in Devitrified Metglass 2826A and AISI 304 Stainless Steel by EPR Testing,. ...

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 microstructures and properties of deep laser melted and rapidly solidified zones produced by a cw power laser on thick plates of AISI 304 stainless steel were studied. Both chemical and mechanical properties of the solidified regions were found to be comparable or better than those characterizing the original material, thus allowing the melting process ...

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 ...

An extensive programme dealing with irradiation effects on the mechanical properties of the 18Cr-11Ni stainless steel (DIN 1.4948, AISI 304) for the SNR-300 reactor vessel and internal components is in progress. For unirradiated material the number of cyc...

Thermodynamic calculations have been used to construct time temperature sensitization (TTS) diagrams for AISI 304 stainless steels (SS). The quantitative Stawstrom and Hillert model, which is based on chromium diffusion control of sensitization, was used to calculate the TTS diagrams. Electrochemical potentiokinetic reactivation (EPR) tests were performed ...

AISI 304 stainless steel and AISI 4135 carbon steel specimens were exposed to five wt.% (70 F) and thirteen wt.% (140 F) boric acid solutions. These are essentially saturation concentrations. After four weeks exposure it was found that the AISI 304 stainless steel was not attacked under these ...

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 ...

... Title : Unlubricated Friction and Wear of an Ion Beam Mixed, Nitrogen-Implanted Fe(sub 50)Ti(sub 50) Surface Alloy on AISI 304 Stainless Steel,. ...

... Title : The Effect of Fluid Flow on the Stress Corrosion Cracking of AISI 304 Stainless Steel in 0.01M Na(sub 2)SO(sub 4) Solution at 280 C,. ...

... Abstract : AISI 304 hollow O-rings either coated with silver or Teflon to a thickness of 0.04 mm were thermally cycled between room temperature ...

Stress corrosion tests of an amorphous FeCrNiW alloy and wrought crystalline AISI 304 stainless steel (SS) alloys in boiling MgCl/sub 2/ have demonstrated that the amorphous FeCrNiW alloys exhibit stress corrosion properties equal to or better than solution-annealed AISI 304L SS. Static load bend tests were ...

... Abstract : Stressed C-rings of tubing samples of AISI 304 stainless steel, Incoloy Alloy 800 (Sanicro 31), Inconel Alloy 690, and Inconel Alloy 600 ...

In the austenitic stainless steels, a class of materials largely used in the nuclear power plants, creep induces essentially two new microstructural effects: the nucleation and growth of grain boundary cavities and the precipitation of carbides. Carbides ...

The effects of substituting less strategic elements than Cr on the oxidation and corrosion resistance of AISI 304 stainless steel were investigated. Cyclic oxidation resistance was evaluated at 870 C. Corrosion resistance was determined by exposure of spe...

The current work informs one on the SMAW dissimilar joints embrittled by molten copper. Bead on plate of that metal were deposited on four different base metals to evaluate the phenomena. Conventional and non conventional welding methods were employed to ...

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...

The reliability and reproducibility of the electrochemical potentiokinetic reactivation method (the EPR-method) in testing the susceptibility of steels to intergranular corrosion has been studied. Two series of heat treated specimens of the steel AISI 304...

... Title : Interface Study of TiN- and Ti-TiN-Coated Stainless Steel AISI 304 With Asymmetric Glancing Angle X-Ray Diffraction and Classical Bragg ...

The reliability and reproducibility of the electrochemical potentiokinetic reactivation method (the EPR-method) in testing the susceptibilty of steels to intergranular corrosion was studied. Two series of heat treated specimens of the steel AISI 304 were ...

... spectroscopy and X-ray diffraction; oxidation was performed in air between 900 C and 1100 C; the layer contains chromium oxides Cr2O3 and ...

Conduct carbonate salt-containment materi a1 compatibility studies that ... These modules were fabricated from AISI 304 and 316 stainless steels. The six salts ... improve the long-term resistance to corrosion and thermal aging effects of ...

... of Stress Corrosion Cracking of Sensitized AISI 304 Stainless Steel in Polythionic Acids,. ... 0.38, 0.18, and 0.03 mol/L of polythionic acid in both the ...

... in Ep recorded at 80 C going from chloride to chloride-thiosulfate solutions amounted to 550, 625, and 700 mV for AISI 304 SS, Alloy 800, and Alloy ...

... Abstract : Zirconia coatings containing 20 wt.% yttria were sputter-deposited onto Ni-Cr-Al-Y coated AISI 304 and Co-Cr-Al-Y coated X-40 and IN ...

... on the intergranular stress corrosion cracking (IGSCC) susceptibility of sensitized AISI 304 SS in deaerated (0.01-x)m sodium sulfate + xm sulfuric ...

... Abstract : Dry sliding properties of ion beam mixed multilayered Fe-Ti structures deposited on AISI 304 stainless steel were studied over the ...

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). ...

... 18cr-12ni, fe-3si, aisi 304 materials related terms: activation enthalpy, austenite, carbon addition, chromium addition, copper addition, creep, creep ...

The Norton and Mukherjee constitutive equations are used to approximate the experimental results of creep in AISI 304 steel. Both equations are applied to the stress-strain analysis of a rotating disk with a concentric circular hole. From the design point...

Hard facing of materials such as austenitic stainless steel is of increasing importance in the industrial field. The present aim is to study the hard facing of austenitic AISI 304 stainless steel by SF6 Stellite. After series of tests, the best effective ...

... X-Ray Diffraction of the Interface Between Austenitic Stainless Steel AISI 304 Substrates and a TiN or Ti/TiN Physical Vapour Deposition Coating. ...

The possibility of examining stress corrosion by means of extreme statistic was proposed. A series of test in boiling MgCl sub 2 of samples made on AISI 304 have been performed. Evolution of cracks dimension and time of life of samples was followed. It ha...

... Title : Analysis of Creep-Rupture Data for Five Multiheat ... Steels from ORNL studies, AISI 304 from National ... of accuracy using short-time data from ...

... 3cb-5fe, aermet 100, af 1410, aisi 304, aisi 420, alloy 718(see inconel 718), carpenter 20, custom age 625 plus, hy-180, mp35n materials related ...

reflectance spectra of oxide layers developed on 304 stainless steel. !2v1 8 $ - T (OC) 1 ( m i n ) 5 ( m i n-380 700-699 590 -460 Ref 7 8 7 7 9 9 10 1 8 11 11 11 #12;OXIDATION OF STAINLESS STEELS (AISI 304 AND 316) 353 Oxidationof stainless steels (AISI304 and 316) at high temperature. Influence on the metallic ...

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 ...

Cathodic charging of hydrogen into AISI 304 steels at high current densities and room temperature produces the same martensitic phases ({var_epsilon} and {alpha}{prime}) as are formed by deformation at 77 K. This phenomenon is interpreted on the assumption that hydrogen lowers the Stacking Fault Energy (SFE) of the austenite. In this way, the high stress ...

Magneto-mechanical effects, or effects of magnetic fields on mechanical propeties of materials, are reported for two steels containing austenite that undergoes an fcc..-->..bcc martensitic transformation during plastic deformation. Stress-strain curves from tensile tests of AISI 304 stainless steels and 9Ni steels were measured in magnetic fields as ...

The weight loss of stainless steel in corrosion with iodine vapor was studied at 500 to 1000/sup 0/C and an iodine vapor pressure range of 0.05 to 0.5 mm Hg, using a thermobalance. In the initial stage of corrosion, the weight loss rate is largely influenced by solution treatment or surface treatment; the induction period, observed for solution-treated samples, is shortened or eliminated by ...

The work addresses the influence of cementation and electrodeposition of copper coatings on the corrosion resistance of AISI 304 stainless steel immersed in 30 wt.% H2SO4 at temperatures of 25 and 50 �C. Corrosion process was evaluated by gravimetric tests, DC measurements and electrochemical impedance spectroscopy (EIS). The specimen surfaces were ...

As a technique of grain refinement process by plastic deformation, surface mechanical attrition treatment (SMAT) has been developed to be one of the most effective ways to optimize the mechanical properties of various materials including pure metals and alloys. SMAT can significantly reduce grain size into nanometer regime in the surface layer of bulk materials, providing tremendous opportunities ...

The straining electrode technique was used to evaluate the stress corrosion cracking (SCC) susceptibility of AISI 304 stainless steel in 20N NaOH solution, and of Inconel 600 Alloy and Incoloy 800 Alloy in boiling 17.5N NaOH solution. The crack propagation rate estimated from the straining experiments correlated well with failure time measurements from ...

The diffusion welding characteristics of wrought AISI 304 stainless steel to a superalloy powder Nimonic AP-1 were examined in this study. After encapsulation, evacuation and degassing, the welds were hot isostatically pressed (HIPed) in two different cycles, i.e., 1,200 C (2,192 F)/3h/147 MPa and 1,270 C (2,318 F)/3h/121 MPa. A variation in surface ...

Samples of AISI 304 and 316 stainless steels, initially in austenitic (first set) and martensitic states (second set) and ?-Fe (third set), were implanted with 180 keV12C? to a dose of 1017 atoms/cm2 at room temperature. Surfaces were examined by SEM (scanning electron microscopy) and the crystalline-phase fractions were estimated through CEMS (conversion ...

Hydrogen embrittlement of AISI 304-type austenitic stainless steels has been studied with special emphasis on the effects of the nitrogen content of the steels. Hydrogen charging was found to degrade the mechanical properties of all the steels studied, as measured by a tensile test. The fracture surfaces of hydrogen charged specimens were brittle ...

Thermenol is an alloy of approximately 82% iron, 15% aluminum, and 3% molybdenum. An investigation revealed it to be extremely brittle at room temperature. Its ductility and hardness are unaffected by annealing. Its optimum mechanical properties are those in the temperature range of 1100 to 1200 deg F. Its corrosion resistance (salt spray) is superior to that of 16-Alfenol and AISI ...

Electrochemical behavior of austenitic AISI 304 stainless steel in two different solutions is presented here. Effect of cold rolling conditions on corrosion behavior of the steel is studied with respect to strain-induced {alpha}'-martensite phase, residual stress, and texture of both the austenite and {alpha}'-martensite phases. The ...

This study was conducted to clarify the effects of low-temperature eutectic on solidification cracking of boron-added AISI 304 austenitic stainless steel welds. This steel is often used in the fabrication of nuclear shields and reactor control rods. Experimental results confirmed that the lower solidification cracking susceptibility of high B steels is ...

Dry sliding properties of ion beam mixed multilayered Fe-Ti structures deposited on AISI 304 stainless steel were studied over the composition range 0--100% Ti using samples with a linearly varying composition of constituents. Our measurements revealed that a ductile surface was formed with good sliding properties over the wide composition range by ion ...

Corrosion-related defects of pure iron, and AISI 304 and 316 stainless steels were investigated by measuring Doppler broadening energy spectra (DBES) of positron annihilation. Defect profiles of the /S parameter from DBES as a function of positron incident energy up to 30keV (i.e. ~1?m depth) were analyzed. When the sample is treated with various anodic ...

X-ray double crystal diffractometry (XRDCD) was used to assess cyclic microstructural deformation in a face centered cubic (fcc) steel (AISI304) and a body centered cubic (bcc) steel (SA508 class 2). The first objective of the investigation was to determi...

The magnetization and susceptability of the non-magnetic stainless steels AISI 304 and AISI 316 have been measured at low temperatures using a SQUID magnetometer. A small but stable ferromagnetic component is always present. Field cooling shows the effects of exchange anisotropy. Another stainless steel AISI 321 is non-magnetic at room temperature but it ...

Multilayered Fe-Ti-C films consisting of eleven sublayers were vacuum deposited onto an AISI 304 stainless steel substrate and subsequently mixed using either 400 keV Xe ions or an excimer laser, operating at a wavelength of 308 nm. Ion mixing was accompl...

A transient heat flow and fluid flow model was used to predict the development of gas tungsten arc (GTA) weld pools in 1.5 mm thick AISI 304 SS. The welding parameters were chosen so as to correspond to an earlier experimental study which produced high-re...

A transient heat flow and fluid flow model was used to predict the development of gas tungsten arc (GTA) weld pools in 1.5 mm thick AISI 304 SS. The welding parameters were chosen so as to correspond to an earlier experimental study which produced high-resolution surface temperature maps. The motivation of the present study was to verify the predictive ...

Three steels AISI 4140, AISI 4340 and AISI 304 stainless steel were ion nitrided in a plasma consisting of a 75:25 mixture of H2:N2, sometimes with a trace of CH4. Their surface topography was characterized by SEM and two distinct compound phases were ide...

S>A study of the structure of stainless steels made with an electron microscope with secondary electron emission under ion bombardment, the metioscope, is reported. With this microscope the mantensitic transformation of sustenitic stainless steels can be examined. The samples are quenched in liquid hydrogen. Photomicrographs of the study of AISI ...

X-ray absorption spectroscopy of the iron K edge in both surface sensitive (total reflection) and transmission modes has been applied to a structural investigation of the early stages of the corrosion of stainless steel. Polished AISI 304 stainless steel ...

The effects of excimer laser surface melting on the near-surface chemistry, and corrosion behavior of AISI 304 stainless steel have been examined as a function of total energy deposited on the specimen. The surface chemistry resulting from the laser treat...

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 available for selecting possible filler metals when two entirely dissimilar metals need to be joined. This ...

Austenitic stainless steels layers depositedby laser cladding on a mild steel: realizationand-10 (AISI 304 grade) and 18-12-Mo(AISI 316 grade) stainless steel coatings produced'by laser powder cladding then be considered. Laser cladding by the blown powder method is a cheaper deposition technique capable of producing

in the TWC can be solid, porous or granular. In order to avoid the effect of high-speed air jet and melting) technique was successfully used to investigate the shear-band patterning in AISI 304 stainless steel�17] compared the trajectories of bands in ballistic impact for steel and observed their characteristic spacing

The influence of superficial application of rare earth oxides such as CeO sub(2), La sub(2)O sub(3), Nd sub(2)O sub(3), Sm sub(2)O sub(3), and Gd sub(2)O sub (3) to AISI 304 and 310 stainless steels, on their isothermal oxidation behavior at 900 sup(0) an...

Microscopic Fracture Modes Dictate Crack Growth Behavior in Single-Crystals, .... Lenticular Cracking in Cast 'y'Super'alloys in Hydrogen; This Example is ...... to the one used for fatigue testing is made of AISI 304 stainless steel and ...... data obtained for the other HTs without the duplex microstructure. ...

The early stages of oxidation at the surface of stainless steel has been followed using glancing angle x-ray absorption spectroscopy. Prepared AISI 304 stainless steel surfaces were corroded in an oxidizing atmosphere at 1000 C. By using a glancing angle ...

Gas phase hydrogen permeation studies were conducted on hollow, cylindrical membranes of triply zone-refined alpha iron, AISI 304 austenitic stainless steel, and AISI-SAE 4130 steel in both the normalized (ferrite and carbide) and quenched and tempered (m...

Low Cr steels AISI 41410, AISI 4340, and high Cr austenitic stainless steels AISI 304, AISI 316 were ion nitrided in a dc glow discharge plasma consisting of a 75 percent H2 - 25 percent N2 mixture. Surface compound layer phases were identified, and compo...

The fatigue strength of spot welded stainless sheet steels has been investigated. The main part of fatigue testing was performed on cold rolled austenitic type of stainless steel AISI304 in air at ambient temperature. For comparison also a duplex stainles...

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...

Transmission electron microscopy and diffraction were employed to study in situ films over corrosion pits in ferritic Fe-Cr alloys containing 5, 12 and 19 wt. % Cr and in commercial AISI 304 and 316 stainless steels. The composition of passive films extra...

corrosion for silica-coated samples was slower than for uncoated 304SS. � 2007 The Electrochemical Society the electrochemical setup for the atmospheric corrosion experiments employed in this study. A plastic container cm was embedded in epoxy resin. A hole approximately 3 mm in diam- eter was drilled in the epoxy

The influence of metallurgical variables on stress corrosion cracking of austenitic stainless steels, in particular AISI 304 and OX18H10T, was examined in O2 enriched BWR conditions (8 ppm O2) and in typical PWR conditions. Cracking susceptibility in BWR ...

As a contribution to the German-Belgian-Dutch fast breeder project SNR-300 a mechanical testing programme is being performed at ECN to determine the effects of neutron irradiation on the mechanical properties of the DIN 1.4948 construction steel of the SN...

The weight loss of stainless steel in corrosion with iodine vapor was studied at 500 to 1000 exp 0 C and an iodine vapor pressure range of 0.05 to 0.5 mm Hg, using a thermobalance. In the initial stage of corrosion, the weight loss rate is largely influen...

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...

Fatigue of two stainless steels, AISI 304L and AL6-XN, was systematically investigated. While AISI 304L is well known in industry and has been used in engineering applications over the years, AL6-XN is a relatively new alloy and fatigue properties of this material have not been fully investigated by researchers. ...

Nitrogen implantation was observed to significantly improve the dry sliding properties of an ion beam mixed Fe/sub 50/Ti/sub 50/ surface alloy on AISI 304 stainless steel. Implantation to the fluence of 1.7 x 10/sup 17/ N/cm/sup 2/ at 50 keV increased the wear resistance but a decreased friction coefficient was obtained only after few hundred cycles at the ...

The effects of prior cold rolling of up to an 80 pct reduction in thickness on the sensitization-desensitization behavior of Type AISI 304 stainless steel and its susceptibility to intergranular corrosion have been studied by electrochemical potentiokinetic reactivation (EPR) and Strauss-test methods. The results indicate that the prior deformation ...

Thin alumina films, deposited at 280{degrees}C by low-pressure, metal-organic, chemical-vapor deposition on stainless steel, type AISI 304, were annealed at 0.17 kPa in a nitrogen atmosphere for 2, 4, and 17 hr at 600, 700, and 800{degrees}C. The effect of the annealing process on the adhesion of the thin alumina films was studied using a scanning-scratch ...

Structural design of superconducting magnets in fusion energy devices requires reliable property data at 4 K. Nitrogen-strengthened AISI 304 and 316 stainless steels are considered to be the best currently available low temperature structural alloys on the basis of their fabricability and their potential to meet the US fusion research goals of combined ...

The strain hardening rate of metastable austenitic stainless steels is known to be closely related to the amount of strain induced martensite (SIM, {alpha}{prime}-martensite) formed during deformation. The present investigation was motivated by two main considerations. First, deformation mechanism of {gamma} {yields} a mixture of {epsilon}-martensite and mechanical twinning {yields} ...

The object of this study was to measure the stability of irradiation-induced microstructure upon annealing and, by selectively annealing out some of these features and reirradiating the material, it was expected that information could be gained concerning the role of microstructural changes in the void swelling process. Transmission electron microscopic examinations of isochronally annealed (200 ...

The technique to weld AISI 304 stainless steel to AISI 420 stainless steel with a pulsed Nd:YAG laser has been investigated. The main objective of this study was to determine the influence of the laser beam position, with respect to the joint, on weld characteristics. Specimens were welded with the laser beam incident on the joint and moved 0.1 and 0.2 mm ...

Radiation-enhanced and -induced phases precipitation, radiation-induced solute segregation and radiation-induced preferential sputtering have been observed in the irradiated stainless steels. Austenite([gamma]) to ferrite([alpha]) phase transformation has been reported in austenitic stainless steels following neutron- and ion-irradiation, long-term thermal aging and mechanical deformation. ...

An improved multiaxial fatigue failure criterion was developed based on the results of combined axial-torsional strain cycling tests of AISI 304 and 2-1/4 Cr-1 Mo steel conducted at 538/sup 0/C (1000/sup 0/F). The formulation of this criterion involves the shear and normal components of inelastic strain range on the planes of maximum inelastic shear strain ...

Results about mechanical and tribological behavior of AISI 304 stainless steel nitrided by three different ion beam processes glow discharge (GD), ion implantation (II) and plasma immersion ion implantation (PI3) are reported. Expanded austenite ?N and nitrides phases (Fe2+xN, ??-Fe4N and Cr N) were identified as a function of nitriding conditions. ...

Five hexagonal ducts constructed from AISI 304 stainless steel in the annealed state were removed from rows 8-14 of the EBR-II fast reactor after many years of irradiation to study the effect of atomic displacement rate on void swelling. For this objective it was important to assure that the observed differences in void swelling were not strongly ...

In the present study, an attempt has been made to improve wear resistance of AISI 304 stainless steel by laser composite surfacing with SiC. Laser processing has been carried out by pre-deposition of Fe + SiC powders (in the ratio of 85:15 and thickness of 100 m) on AISI 304 stainless steel substrate and ...

Low energy-high flux (1.2 keV, 1 mA/cm2) nitriding of an austenitic AISI 304L stainless steel has been carried out by implanting a dose of 3.5�1019 ions cm-2 at 400 �C for 1 h. An important increase in surface hardness has been found to occur as a result of the formation of the so-called expanded austenite ?N phase. Transmission electron microscopy ...

In-pile electrochemical measurements were performed in order to investigate the effect of radiation on the electrochemical corrosion behaviour of AISI 304 and AISI 316 in PWR primary water (400 ppm B and 2 ppm Li) at 300 �C. The corrosion potential was continuously monitored during the whole irradiation period. Polarization resistance measurements and ...

The demand for weight reduction in modern vehicle construction has resulted in an increase in the application of hydroforming processes for the manufacture of automotive lightweight components. This trend led to the research of evaluation on formability of the sheet or tube hydroforming to be noted, particularly the prediction of fracture. In this study, a new proposed approach based on damage ...

This program to produce overlays, with corrosion resistance to coal gasification atmospheres at 1800/sup 0/F, is in its early stages. The first quarter was used to obtain the materials required for the program and to begin welding. All materials needed for the program have been received or are on order. The substrate materials, AISI 304L, AISI 310 and ...

Hydrogen embrittlement in austenitic stainless steels is restricted to the surface due to the low hydrogen diffusion in austenitic structures. The effect of three different nitriding processes: ion implantation (II), plasma immersion ion implantation (PI3) and glow discharge (GD), on the mechanical and structural properties of cathodically hydrogenated AISI ...

Weld geometric characteristics in laser overlapping spot welding of 0.6-mm AISI 304 stainless steel sheets were investigated. A pulsed Nd:YAG laser with maximal average power of 150 W was used for welding experiments with different laser beam energies in the range of 3.5 J to 6.2 J, keeping all other processing parameters constant. The main objective of ...

Retrospective dosimetry was used to determine the accumulated neutron exposure of AISI 304 stainless steel removed from the top guide of a boiling water reactor located at the Oyster Creek nuclear power station. The material was removed from areas adjacent to cracks that were observed after �20 years of operation. Using the plant operational history and ...

Retrospective dosimetry was used to determine the accumulated neutron exposure of AISI 304 stainless steel removed from the top guide of a boiling water reactor located at the Oyster Creek nuclear power station. The material was removed from areas adjacent to cracks that were observed after ~20 years of operation. Using the plant operational history and a ...

This work presents the results of a low-energy nitrogen ion implantation of AISI 304 type stainless steel (SS) at a moderate temperature of about 500�C. The nitrogen ions are extracted from a Kauffman-type ion source at an energy of 30 keV, and ion current density of 100 ?A cm^{-2}. Nitrogen ion concentration of 6 � 10^{17}, 8 � 10^{17} and 10^{18} ...

Component surface quality and selection of the optimum material are the main factors determining the performance of components used in machine manufacturing. The level of hole surface quality can be evaluated by the measurements regarding surface roughness, micro-hardness, and cylindricity. In this study, data had been obtained for different hole drilling methods. The characteristics of materials ...

The heat term concept of adapting the Minimum Commitment Method for characterizing individual heats of multi-heat materials data is further developed and applied in this report. Using heat-centering, the number of constants in each phase of the analysis is greatly reduced, permitting the use of desk-top microcomputers (e.g. Commodore Pet 2001), programs for which are contained in the report. The ...

The present investigations are planned to study the influence of prior martensites formed due to cold treatment as 77K in AISI 304 SS welded specimens, on strain-induced martensites occurred during tensile deformation using AE technique. AE parameters like count rate and root mean square (r.m.s.) voltage have been used to characterize AE activities ...

The magnetic response of AISI 304L and AISI 316L obtained through powder metallurgy and sintered in nitrogen were studied. AISI 304L sintered in nitrogen showed a ferromagnetic behaviour in as-sintered state while AISI 316L was paramagnetic. After solution annealing both were paramagnetic. Magnetic behaviour was ...

The failure of the X-2-p loop test was caused by an axial split in the stainless steel clad uranium oxide specimen which was fabricated by the cold swaging technique. The split has been attributed mainly to the sheath being cracked from overworking during swaging. Intergranular carbidc embrittlement resulting from the annealing procedure enhanced the propagation of the split. Both the ...

Examination of the progressive appearance of microstructural modifications due to thermal aging alone and to creep at elevated temperatures (600C) is reported. Measurements of the morphology and distribution of cracks in the vicinity of fractures in rupture specimens have been made by optical and electron microscopy. As microvoids of radii of less than 30 A are not easily observed by transmission ...

Oxidized AISI-304 steel samples coated with lanthanum have been investigated by Rutherford backscattering spectrometry (RBS) in order to determine the composition profile of the oxide scale. In this sense, RBS technique has been revealed as a very reliable and nondestructive method for depth profile analysis. Lanthanum deposition, specially over ...

In the plasma nitriding process, the workpiece is uniformly covered by glow discharge and is heated by ionic and neutral species bombardment. In this study, AISI 304 stainless steel workpieces with cylindrical blind holes were plasma nitrided in an atmosphere of H2-20N2 at 1000 Pa, 773 K, for 2 h. The influence of the hole dimensions on the temperature ...

was obtained in a stainless steel [12]. The oxidation experiments were performed on specimens (15 mm and CVD�FBR Aluminized AISI-304 Stainless Steel Oxid. Met. 58 (5/6) 563-588 (2002). 7 hal-00512787,versionOXIDATION MECHANISMS OF LOW ENERGY-HIGH FLUX NITRIDED ODS FeAl INTERMETALLIC ALLOY F. Pedraza*, J

A fully automated system which is capable of measuring specific heat and thermal conductivity simultaneously from liquid helium to room temperature is presented. Thermal conductivity is measured by a steady-state longitudinal heat flow technique, and specific heat by a thermal relaxation method. A numerical simulation of the one-dimensional heat flow equation is used to examine the basic ...

An X-rays diffraction method was applied to measure the Stacking Fault Energies (SFE) of the AISI 304, AISI 316, AISI 347 and DIN-WERKSTOFF 1.4970 Austenitic Stainless Steels. The SFE determination plays an important role in the research of the mecanichal...

The mechanical and metallurgical properties of similar and dissimilar welds involving aluminum-based metal matrix composite (MMC) base material were investigated using factorial experimentation. The test materials comprised aluminum-based alloy 6061/Al{sub 2}O{sub 3} (W6A.10A-T6), aluminum Alloy 6061-T6 and AISI 304 stainless steel. Notch tensile strength ...

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

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An assessment has been made of the influence of the relative energies of vacancy dislocation loops and voids on the susceptibility of a material to swelling during high temperature neutron irradiation. There is experimental evidence that in pure metals in which loops are the lower energy defects higher fluences are required to produce voids. In stainless steel (AISI ...

New high strength structural steels have been required for the large superconducting magnets that will be used for the next step test facility for fusion reactor research. The new materials must have high yield strength accompanied with better toughness and better fatigue resistance compared with the conventional nitrogen-strengthened stainless steels such as AISI ...

A computational methodology is carried out to predict the transient development of the weld pool and the temperature histories in the workpiece during plasma arc welding (PAW) of type AISI-304. One aim of this paper is the modeling of conduction heat transfer with phase change where the thermal conductivity and specific heat in the solid region are ...

This standard establishes process requirements for decontaminating hot leg (between reactor core outlet and intermediate heat exchanger) LMFBR components intended for reuse. The process applies to components made from AISI 304 and 316 stainless steel alloys, their low-carbon analogs (L grades) and CF-8 and CF-8M casting alloys, with nickel-base or ...

Mechanical surface treatments are known to be effective at improving the fatigue resistance of metallic alloys at elevated temperatures ({approx}550-600 C), even though the near-surface compressive residual stress fields have been annealed out. We have investigated the thermal stability of near-surface microstructures induced by deep rolling and laser-shock peening in an austentic stainless steel ...