Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1981-05-07
1983-09-20
Sheehan, John P.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75123B, 75251, 148442, 420581, 428606, F16H 2910
Patent
active
044053681
ABSTRACT:
New iron base alloys containing aluminum and boron are disclosed. The alloys are subjected to a rapid solidification processing (RSP) technique which produces cooling rates between .about.10.sup.5 to 10.sup.7 .degree. C./sec. The as-quenched ribbon or powder, etc consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure which includes borides. The heat treated alloy exhibits superior mechanical properties with good corrosion and oxidation resistance.
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patent: 1493191 (1924-05-01), DeGolyer
patent: 4052201 (1977-10-01), Polk et al.
patent: 4197146 (1980-04-01), Frischmann
patent: 4236946 (1980-12-01), Aboaf et al.
patent: 4264358 (1981-04-01), Johnson et al.
patent: 4297135 (1981-10-01), Giessen et al.
Metallic Glasses, American Society for Metals, 1978 p. 31.
Giessen Bill C.
Panchanathan Viswanathan
Ray Ranjan
Marko Materials, Inc.
Sheehan John P.
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