... Title : A-356 TYPE ALUMINUM CASTING ALLOY. ... on the mechanical properties and part strengths of 'high purity' 356-T6 type aluminum alloys. ...

... IN EMBRITTLED ALUMINUM ALLOY A356, AN AGE HARDENING CASTING ALLOY, CRACKS ... BETWEEN THE CAST STRUCTURE'S ...

... 2. Bailey, WA, A356 Type Aluminum Casting ... of the Aluminum-Silicon- Magnesium Alloy System, Part ... Alloying Elements on Aluminum Casting Alloys ...

... of a centrifugally cast A356 Al-SiCp ... MATERIALS), *ALUMINUM ALLOYS, *METAL MATRIX COMPOSITES, *CASTING, THERMOMECHANICS ...

... Title : Fatigue and Fracture Toughness of Water-Chilled A356-T6 Cast Aluminum Alloy. Descriptive Note : Journal article,. ...

... Title : A-356 TYPE ALUMINUM CAST ALLOY. ... content on the mechanical properties and part strengths of ''high purity'' 356-T6 type aluminum alloys. ...

Test of welded areas in heavily chilled A-356-T6 aluminum alloy were conducted to determine feasibility of welding foundry defects. The results showed a mechanical property level commensurate with the retained magnesium content and the soundness of the we...

This investigation was performed to determine the effect of trace amounts of antimony (Sb) on the microstructure, mechanical properties, and casting properties of strontium-modified A356.2 aluminum alloy that was cast in chemically bonded sand molds. The ...

... ALUMINUM-SILICON ALLOY A356 WAS INVESTIGATED. ... EXPERIMENTS ON A356 SUBJECTED TO ... TEXTURE IN A CONVENTIONAL CASTING. ...

... should be no great difficulty in designing an alloy that can ... improvements these alloys offer compared to two common casting alloys A356 and A201 ...

... nonheat-treatable titanium alloy offering moderate ... A356 cast aluminum possesses good castability and ... other high-strength aluminum casting alloys ...

... Prelil- Snary studies of a numer of commercially available A356. ... Strength Aluminum Alloy Shaped Castings" concerns alloys containing 4 ...

... ceramic particles to conventional aluminum alloys results in ... of Al2O3 particles and the casting alloy A356-T6 with ... was found that the cast matrix has ...

... A356 (T-61), 300 R. Out-Of-PiIe Test Results, Aluminum A356 (T-6L), 30' R ... during this period except for Aluminum Alloy 5083 and one specimen of ...

is an alloy which contains a percentage of beryllium ... A356 aluminum contains no beryllium, but is lower strength than the TENS. 50. A356 aluminum ...... Cast housing, mylar shaft seals, cast ball, revised seat ...

... Magnesium and its alloys (use requires approval), Aluminum alloy 5052, 5056, A356 (and other casting alloys), 6061 6013, and 6063 (and other ...

criterion are given for WCB steel, aluminum alloy A356, and magnesium alloy AZ91D. The present method simulations for magnesium alloy AZ91D illustrate that this method is applicable to a wide variety of alloys), for three different ...

... a gas that does not dissolve easily in the alloy, HIPping can ... selected from regions of various castings of aluminum alloys 356-T6, A356-T6, and ...

... manufactured by the squeeze casting technique was ... transition zone between unreinforced alloy and composite ... zone for saffil a356 aluminum alloy ...

... in this study, consisting of six different matrix alloys with lithium ... baseline minimum properties of conventional aluminum casting Alloy A356, as well ...

Autogenous Nd:YAG laser welding wrought 4047, 1100, 3003, 2219, 5052, 5086, 5456, and 6061 and cast A356 aluminum alloys to cast A356 aluminum alloy in restrained annular weld joints was investigated. The welds were 12.7 mm (0.375 ...

A drop forge viscometer was employed to investigate the flow behavior under very rapid compression rates of A357, A356 diluted with pure aluminum and Al-4.5%Cu alloys. The A357 alloys were of commercial origin (MHD and SIMA) and the rheocast, modified ...

... The outer wing section of the assembly is a casting fabricated from A356 aluminum-alloy tempered to a T6 condition. INS TRUMENTAT ION ...

... micrometers SiC particles of varying volume fractions, dispersed uniformly in a modified aluminum A356 alloy by the melt stirring technique, were ...

aluminum alloys for piece-parts that experience relative motion in a GO2 or ..... All ball valve housings made of cast A356 material were subject to this ...

... hot water quenching for premium cast parts. ... presents that portion of the effort involving alloy A356. ... tests were made on different casting heats using ...

... composite material used was SiC particle reinforced A356 Al alloy, originally procured from Dural Aluminum Composites Corporation ...

... 3] has been applied to many types of aluminum, steel and ... Microstructure-based Fatigue Modeling of Cast A356- T6 Alloy.� Engineering Fracture ...

... of trace amounts of Sb on the microstructure, mechanical properties, and casting properties of Sr modified A356.2 Al casting alloy cast in chemically ...

Mechanical Configuration. The monochromator is constructed in a monolithic housing. Cast from A356 aluminum alloy, the housing is precision machined ...

Aluminum Alloy A356-T6, Microstructure h6. lO1. Average Tensile Properties of. Aluminum Alloys. 18. 102. Tensile Properties of Cast Aluminum ...

Experimental data on directional and bulk solidification of hydrogen- charged samples of aluminum alloy A356 and nickel alloy Inconel 718 are discussed. The solidification structure of the porous zone is shown to be dependent on many process variables. Of...

... both A357 and A356 casting alloys indicates that ... heat treatment for high-strength aluminum alloy castings is ... A356 is the predecessor alloy of A357 ...

Autogenous Nd:YAG laser welding wrought 4047, 1100, 3003, 2219, 5052, 5086, 5456, and 6061 and cast A356 aluminum alloys to cast A356 aluminum alloy in restrained annular weld joints was investigated. The welds were 12.7 mm (0.375 ...

Corrosion characteristics of as-cast, silicon carbide particulate-aluminum (Al) alloy A356 (SiC[sub p]-A356 [UNS A13560]) were examined in chloride (Cl[sup [minus

... BODY, 24S-T4 OR EQUIVALENT ALUMINUM ALLOY LINER, NON-POROUS TEFLON ... Aluminum Alloys 356A Cast ... U- I- A356-T6 Hard Anodized ...

cast in a graphite mold. Change of apparent viscosity of 20vol%SiC/Al-6.5wt%Si ...... (A356 aluminum alloy) with silicon carbide of 10 to 20 _m. ...

Forgings: ASTM B-247, alloy 6061 T6. f. Castings: ASTM B-26, alloy A356 T6. g. Finish: Fluoropolymer, Kynar. Aluminum: Fluoropolymer, Kynar 500. b. Stainless Steel: AISI No. 4, bright directional polish. c. Steel. f. Castings: ASTM B-26, alloy ...

... A356.0-T6 Casting *359.0-T6 Casting *520.0-T4 Casting ... Tin, Manganese, and Aluminum Bronze Castings Aluminum Bronze Bar ... Low Alloy Steels ...

... ferrous, one titanium, and two aluminum cast alloys. The alloys evaluated were Marage 250, 17-4PH (H900), D6AC (220-240 ksi), A356-T61, CH70 ...

... type), when heat treated in 3-inch casting thickness, exhibits ... a heat treated, 1-inch thick, cast plate ... Alloy A356 (silicon-magnesium type) ranked third ...

Aluminum Alloys: A356 -T6, 606.1-T6, 7079-116, 7075-T6, 2219-T61, .... The 347-C alloy was cast in bars and annealed at. 19500 for 30 minutes. ...

... Abstract : The detailed microstructure of cast aluminum alloys based on Al-7 pct Si-0.3 pct Mg (A356) has been investigated as a function of Fe and ...

... Abstract : By the addition of 10-20 vol.% fine sic particles to investment-cast al alloys (a356.0 and a357.0), increases in strength will be realized. ...

Ni-Span-C, 440C stainless steel, A356 cast aluminum, Berylco x. "Super PEL" beryllium, and Ti-5A1-2.5 Sn. With the exception of. 1 the titanium alloy, these ...

... Title : Corrosion Behavior of As-Cast Silicon Carbide Particulate-Aluminum Alloy Metal-Matrix ... material types:, (sic)p/356, (sic)p/a356, (sic)p ...

... (TENSILE VALUES REPORTED ARE THI FOUNDRY CHILLING MAGNESIUM 2 HOURS 3 HOURS ... 0 H cay'i I;MflOd Page 34. SM-43094 Page: 25 I ...

... Title : Casting Defects and Properties of Cast A356 Aluminium Alloy Reinforced With SiC Particles. Descriptive Note : Journal article,. ...

Experimental data on directional and bulk solidification of hydrogen-charged samples of aluminum alloy A356 and nickel alloy Inconel 718 are discussed. The solidification structure of the porous zone is shown to be dependent on many process variables. Of these variables, hydrogen content in the ...

... Title : Hardness Characteristics in Aged Particulate SiC/A356 Cast Aluminium Alloy Composites. ... types:, (sic)w/al, a356 matrix, al alloys, al matrix ...

Different types of nanoparticles in aluminum (Al) alloy A356 nanocomposites were shown to catalyze nucleation of the primary Al phase. Nanoparticles of SiC ?, TiC, Al2O3 ?, and Al2O3 ? were added to and dispersed in the A356 matrix as nucleation catalysts using an ultrasonic mixing technique. Using the droplet ...

Alloys: Has_el!oy C_ Inconel X-7..50_Inconel 713.-C. Aluminum Alloys: A356-T6, 2219-T813 5?56-0, ... Nickel-base Alloys: Hastelloy C, Inconel X-750 and 713C ...

In the present paper a thorough study of the fatigue crack initiation mechanisms of a defect-free and a commercially cast A356 aluminum alloy are presented. Further, fatigue crack growth has been investigated in these materials. Finally an attempt to desc...

PROJECT NERVA. Contract SNP-1. 3. "i ,. ^* f\\~^. 5 .... 2. Braze Alloy. Specimens .of A-286 alloy have been vacuum brazed with AGC-7 and ... Material specifications for 85$ of the components in the NRX A-l ...... APPLIED RESEARCH. 1. Coating Systems ... shown evidence of a metallurgical bond to cast A356 ...

Application of nondestructive electronic property measurements to assess the strengthening of Mg2Si precipitates in aluminum A356.2 casting has been demonstrated. The results indicated the evolution of precipitation phase through over aging with increased cooling time or thickness of the cast part. The classical optimum precipitation ...

The wear behavior of A356 aluminum alloy (Al-7 Pct Si-0.3 Pct Mg) matrix composites reinforced with 20 vol Pct SiC particles and 3 or 10 vol Pct graphite was investigated. These hybrid composites represent the merging of two philosophies in tribological material design: soft-particle lubrication by graphite and hard-particle reinforcement by carbide ...

Microporosity in cast aluminum alloys may originate from hydrogen gas evolution, microshrinkage, or a combination of both. A spatial analysis method for the quantitative discrimination between shrinkage and gas porosity is presented and explained. It is shown that shrinkage pores can be selected and analyzed separately from gas pores by nearest-neighbor ...

The wear behavior of A356 aluminum alloy (Al-7 pct Si-0.3 pct Mg) matrix composites reinforced with 20 vol pct SiC particles and 3 or 10 vol pct graphite was investigated. These hybrid composites represent the merging of two philosophies in tribological material design: soft-particle lubrication by graphite and hard-particle reinforcement by carbide ...

This investigation was performed to determine the effect of trace amounts of antimony (Sb) on the microstructure, mechanical properties, and casting properties of strontium-modified A356.2 aluminum alloy that was cast in chemically bonded sand molds. The aluminum-silicon ...

Melting and casting characteristics of A356 (Al 7% Si) alloy reinforced with 10, 15, and 20 vol. % SiC particles were studied. Remelting followed by holding and solidification of these composites leads to settling of the SiC particles to the bottom of the mold. The height of the SiC particle-free zone formed at the top of the mold, as a result of settling, is referred to as ...

... Title : Strontium Influence as a Modifying Element on the Microstructural Characteristics and Mechanical Properties of the Al Si (A-356) Alloy. ...

... Title : MICROSTRUCTURAL CHARACTERISATION OF SAND CAST ALUMINIUM ALLOY A356-SIC PARTICLE METAL MATRIX COMPOSITE. ...

A number of 7xx aluminum casting alloys are based on the ternary Al-Zn-Mg system. These alloys age naturally to high strength at room temperature. A high temperature solution and aging treatment is not required. Consequently, these alloys have the potential to deliver properties nearly equivalent to conventional ...

The presence of microporosity can, in certain circumstances, lead to a significant reduction in the mechanical properties of cast aluminum alloys. The size of the microporosity is especially crucial to the performance of castings in fatigue applications. The aim of this study is to investigate the effect of cooling rate and degassing time on the formation ...

The Bauschinger effect is interpreted as anisotropic work hardening that arises upon reverse loading from internal backstresses that are attributed to dislocations accumulating at obstacles. Studies to describe the Bauschinger effect have either focused on continuum mechanics modeling or on analyzing dislocation build-up at a microscopic scale. In continuum mechanics, the focus often is on the ...

We examine the dependence of fatigue properties on the different size scale microstructural inclusions of a cast A356 aluminum alloy in order to quantify the structure-property relations. Scanning electron microscopy (SEM) analysis was performed on fatigue specimens that included three different dendrite cell sizes ...

During the application of a structural component, failure by resonant vibration may occur under some abnormal situations. The study of this failure is necessary in order to ensure the reliability of the component. In the current investigation, A356 aluminum alloy (Al-7wt% Si-0.3wt% Mg) was chosen to explore the ...

The plastic deformation behavior of aluminum casting alloys A356 and A357 has been investigated at various solidification rates with or without Sr modification using monotonic tensile and multi-loop tensile and compression testing. The results indicate that at low plastic strains, the eutectic particle aspect ratio ...

The tensile properties and fracture behavior of cast aluminum alloys A356 and A357 strongly depend on secondary dendrite arm spacing (SDAS), Mg content, and, in particular, the size and shape of eutectic silicon particles and Fe-rich intermetallics. In the unmodified alloys, increasing the ...

Microscopic characteristics of fatigue crack propagation in two aluminum alloy (A356 and 6061) based particulate reinforced metal matrix composites (MMCs) were investigated by carrying out three point bending fatigue tests. The impedance offered by the reinforcing particles against fatigue crack propagation has ...

A statistical grain nucleation model was implemented as a part of a multiphase flow and solidification simulation code for metallic alloys. Three characteristic parameters control the solution accuracy of the nucleation model: the total grain density, the mean undercooling, and the standard deviation of the undercooling. These parameters were obtained experimentally for ...

The abrasive wear properties of stir-cast A356 aluminum alloy-5 vol pct fly ash composite were tested against hard SiC{sub p} abrasive paper and compared to those of the A356 base alloy. The results indicate that the abrasive wear resistance of aluminum-fly ash composite is ...

A quantitative prediction of the amount of gas microporosity in aluminum and magnesium-alloy castings is performed with a continuum model of dendritic solidification. The distribution of the pore volume fraction and pore size is calculated from a set of conservation equations that solves the transport phenomena during solidification at the macroscale and ...

... formable. * A356-T6 Aluminum - aft weight retention fitting. Material easily castable and good strength. (MIL-A-21180, Class II. ...

... Title : Laser and Electron Beam Welding of SiCp Reinforced Aluminum A-356 Metal Matrix Composite. Descriptive Note : Journal article,. ...

... scanning calorimetry was conducted using centrifugally cast monolithic a356 aluminum material and 26 volume percent silicon carbide (sic ...

... Corporate Author : Personal Author(s) : Yarandi, FM ; Rohatgi, PK ; Ray, S. Report Date : 01 JAN 1992. Pagination or Media Count : 495. ...

Over the past several years we have designed and fabricated several variations of a three mirror anistigmat Telescope for a Risk Reduction effort. In order to achieve passive athermalization, use of the same materials for both mirrors and structures is desirable. We fabricated 2 telescopes using investment cast aluminum alloy ...

The effect of quenching condition on the mechanical properties of an A356 (Al-7 wt pct Si-0.4 wt pct Mg) casting alloy has been studied using a combination of mechanical testing, differential scanning calorimetry (DSC), and transmission electron microscopy (TEM). As the quench rate decreases from 250 C/s to 0.5 C/s, the ultimate tensile strength (UTS) and yield strength ...

The effect of quenching condition on the mechanical properties of an A356 (Al-7 wt pct Si-0.4 wt pct Mg) casting alloy has been studied using a combination of mechanical testing, differential scanning calorimetry (DSC), and transmission electron microscopy (TEM). As the quench rate decreases from 250 �C/s to 0.5 �C/s, the ultimate tensile strength (UTS) and yield strength ...

Differential scanning calorimetry was conducted using centrifugally cast monolithic A356 aluminum material and 26 volume percent silicon carbide (SiC) particle reinforced A356 aluminum matrix composite material in as-cast, cast and rolled, and cast and ex...

... technology that can locally eliminate casting defects and ... 1) a doubling of strength of cast nickel-aluminium ... in ductility of Al alloy A356, (3) increased ...

A microstructural analysis of local microfracture of cast A356 Al-SiC{sub p} composites fabricated by permanent mold re-casting and squeeze-casting methods was made. Notch fracture toughness tests were conducted on these composites to identify critical fracture parameters using a stress-modified critical-strain criterion. The composite microstructure shows ...

Here, is the macro-micro modeling, in its present form, does not include the effect of melt superheat. In this work, identical castings of sand, permanent mold, and lost foam processes were produced by pouring aluminum alloy A356 at 700, 750, 800, 850, and 900 C. Grain size increased with pouring temperatures to ...

Fatigue life- and cyclic stress response curves for specimens in four different aging conditions are obtained from a DC-cast A356 alloy. During aging a change in the precipitation structure is observed, which affect the fatigue behavior and the surface cr...

... PERFORMANCE OF ALUMINUM ALLOYS 1100, 3003 ... DIFFERENCES IN ALLOY PERFORMANCE. ... OF THE ALUMINUM ALLOYS IS OBSERVED ...

In this study, different volume fractions of B4C particles were incorporated into the aluminum alloy by a mechanical stirrer, and squeeze-cast A356 matrix composites reinforced with B4C particles were fabricated. Microstructural characterization revealed that the B4C particles were distributed among the dendrite ...

A356 and A319 are aluminum-silicon casting alloys used in automobile powertrain castings such as engine blocks and cylinder heads. It is of interest to model solidification and microstructure evolution in these alloys as a function of melt composition and processing conditions. There are ...

In the present work, functionally graded (FG) aluminum alloy matrix in-situ composites (FG-AMCs) with TiB2 and TiC reinforcements were synthesized using the horizontal centrifugal casting process. A commercial Al-Si alloy (A356) and an Al-Cu alloy were used as matrices in ...

The Brulin immersion and the precision cleaning experiments have shown that neither the Brulin solution nor the precision cleaning in AstroPak causes the smut formation on aluminum surfaces. The acid-bath cleaning in GTC is the primary source of the smut formation. The current GTC acid formulation etches the aluminum matrix quite aggressively, but does not ...

Differential Scanning Calorimetry (DSC) measurements are used to estimate the fractional latent heat release during phase changes. There are temperature lags inherent to the instruments due to the temperature measurement at a different location than that of the sample and reference materials. Recently, Dong and Hunt[1] showed that significant improvement in estimating the fractional latent heat ...

... friction by use of the aluminium tubes or ... and KA Bondareva, Synthesis of Alloy Ti � 6Al ... of TiH2, Materials Science & Engineering A356 (2003) 190 ...

... Abstract : The dry sliding wear behaviour of cast aluminium 7% si alloys (a356) reinforced with ... 100) occurred in the unreinforced al-si alloy at 95 n ...

Fatigue life prediction and optimization is becoming a critical issue affecting the structural applications of cast aluminum-silicon alloys in the aerospace and automobile industries. In this study, a range of microstructure and porosity populations in A356 alloy was created by controlling the casting conditions and by applying a ...

Centrifugation is a casting technology that allows the production of cylindrical and graduated parts with different mechanical properties through the section. The need for materials with good quality and specific mechanical properties has been driven this technology in order to produce different types of materials such as zinc alloys and graduated metal matrix composites ...

To investigate the microbiologically induced corrosion of aluminum alloys in fuel-oil/aqueous system, aluminum alloys A356, AA 5052, AA 5083 and AA 6061 were chosen as the test alloys and Cladosporium and several fuel-oil contaminated microbes isolated ...

... ALUMINUM ALLOY WELDMENTS UNDER THE GUIDANCE OF THE ALUMINUM ALLOYS COMMITTEE OF THE WELDING RESEARCH COUNCIL ...

... Accession Number : AD0815691. Title : WELDING OF ALUMINUM AND ALUMINUM ALLOYS,. Corporate Author : BATTELLE ...

... ALLOYS), (*ANODES, ALUMINUM ALLOYS), (*ELECTROCHEMISTRY, ALUMINUM ALLOYS), SEA WATER, MERCURY ALLOYS, ZINC ALLOYS ...

Microstructures of engineering alloys often contain features at widely different length scales. In this contribution, a digital image processing technique is presented to incorporate the effect of features at higher length scales on the damage evolution and local fracture processes occurring at lower length scales. The method is called M-SLIP: Microstructural Scale Linking by ...

... 26. ... 1. Bearings - all M50, except the brake bearings are 52100 2. All aluminum housingo - A356-T6 castings 3. Quill shaft, high-speed assembly - ...

This article presents a microstructure-based multistage fatigue (MSF) model extended from the model developed by McDowell et al.[1,2] to an A380-F aluminum alloy to consider microstructure-property relations of descending order, signifying deleterious effects of defects/discontinuities: (1) pores or oxides greater than 100 ?m, (2) pores or oxides greater ...

Friction stir processing (FSP) has been applied to cast aluminum alloy A356 plates to enhance the mechanical properties through microstructural refinement and homogenization. The effect of tool geometry and FSP parameters on resultant microstructure and mechanical properties was investigated. The FSP broke up and ...

Several types of casting alloys were fractured using various loading modes (uniaxial tension, bending, impact, and torsion, and cyclic stressing), and the corresponding mechanical properties were determined. The unetched and etched fracture surfaces and the microstructures were examined using conventional techniques. The types of casting alloys that were ...

... commercial casting alloys can be remelted and cast to shape ... of al4c3, which also affects the casting fluidity of ... p/2014, (sic)p/6061, (sic)p/a356, (sic)p ...

... Metal-Matrix Composites Manufactured by Squeeze Casting. ... Abstract : Squeeze-cast mmc ingots have ... manufactured by recasting a356/10% sic(p ...

In the absence of gross defects such as cold shuts, the fatigue properties of castings are largely determined by the sizes of microstructural defects, particularly pores and oxide films. In contrast, the effects of grain size, second-phase particles, and nonmetallic inclusions are insignificant. The authors review the fatigue properties of castings made by gravity die casting, sand casting, ...

... Title : Development of Cast Aluminum Alloys for Elevated ... to develop an aluminum alloy for service at ... of the various alloys subsequently cooled to ...

... COPPER ALLOYS, MANGANESE ALLOYS, ALUMINUM ALLOYS, TIN ALLOYS, INDIUM ALLOYS, BISMUTH ALLOYS, GERMANIUM ALLOYS ...

With the emerging demand for energy efficient and environment-friendly automobiles, cast aluminum alloys are increasingly being used in their manufacture. In this context, two permanent mold casting processes, namely, Squeeze Cast Permanent Mold and Low Pressure Permanent Mold (LPPM) have become very popular in the production of high integrity shape-cast ...

Both current and potential applications of particulate reinforced aluminum alloys involve components which are required to operate under sliding contact conditions at elevated temperatures. Examples include brake rotors, piston and cylinder liners in automotive engines where operating temperatures can reach 0.5--0.8 of the melting temperature of the matrix ...

A comparative study of laser beam welding (LBW) and electron beam welding (EBW) of cast A356/SiC/15p aluminum metal matrix composite (Al-MMC) has been completed. Laser and electron beam welds have been made at identical powers, rapid travel speeds (up to 200 ipm) and focusing conditions to allow direct comparison of the effects of the ...

The main phases that are present in A356 aluminum alloy castings are the primary aluminum and eutectic silicon phases. It is the morphology of these phases, together with the microporosity, that determines the mechanical properties, notably the fatigue life of structural aluminum alloy ...

Ten MC4073/4369 programmer base plates were analyzed. This component, a programmer base plate for the SRAM II (and later the SRAM A), is specified as a Grade C quality casting made of aluminum Alloy A356, heat treated to the T6 condition. A concern was expressed regarding the choice of an A356 casting for this ...