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Article
The effect of particle size and volume fraction on the aging behavior of a liquid-phase sintered SiC/aluminum composite
The aging response of a SiC particulate reinforced powder metallurgy aluminum composite was examined as a function of particle size and volume fraction. The addition of SiC particles ranging in size from 24 to...
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Article
SiC particle cracking in powder metallurgy processed aluminum matrix composite materials
Particle cracking is one of the key elements in the fracture process of particulate-reinforced metal-matrix composite (MMC) materials. The present study quantitatively examined the amount of new surface area c...
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Article
Beneficial effects of nitrogen atomization on an austenitic stainless steel
Fully dense nitrogenated austenitic stainless steels were produced by gas atomization and HIP consolidation. The base alloy, 304L, contained about 0.15 wt pct nitrogen when melted under a nitrogen atmosphere, ...
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Article
Beneficial effects of nitrogen Atomization on an Austenitic Stainless Steel
Fully dense nitrogenated austenitic stainless steels were produced by gas atomization and HIP consolidation. The base alloy, 304L, contained about 0.15 wt pct nitrogen when melted under a nitrogen atmosphere, ...
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Article
The microstructure of electrodeposited titanium-aluminum alloys
The microstructure of electrodeposited titanium-aluminide alloys containing 3.6 to 24.1 at. pct Ti was studied by transmission electron microscopy. The surface morphology of the deposits showed that they conta...
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Article
Thermal stability of the nickel-base superalloy B-1900 + Hf with tantalum variations
The microstructure of the solutionized and aged nickel-base superalloy B-1900 + Hf was examined after additional aging at 982 °C for 72, 250, and 1000 hours. Alloy compositions that were examined contained the...
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Article
The effects of tantalum on the microstructure of two polycrystalline nickel-base superalloys: B-1900 + Hf and MAR-M247
Changes in the γ/γ'/carbide microstructure as a function of Ta content were studied in conventionally cast B-1900 + Hf and both conventionally cast and directionally solidified MAR-M247.* The effects of tantal...
