Nickel base alloys which contain boron and have been processed b

Details Nickel base alloys which contain boron and have been processed b Nickel base alloys which contain boron and have been processed b

1981-04-27

1983-09-13

Dean, R.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75 05R, 148409, 148410, 419 12, 419 48, 420457, 420458, C22C 1908

Patent

active

044040288

ABSTRACT:
New nickel rich metal alloys containing copper along with specific amounts of boron are disclosed. The alloys are subjected to rapid solidification processing (RSP) techniques which produce cooling rates between .about.10.sup.5 .degree. to 10.sup.7 .degree. C./sec. The as-quenched ribbon, 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. This heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.

REFERENCES:
patent: 4297135 (1981-10-01), Giessen et al.

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