Ni.sub.3 Al-based intermetallic alloys having improved strength

Details Ni.sub.3 Al-based intermetallic alloys having improved strength Ni.sub.3 Al-based intermetallic alloys having improved strength

1998-06-08

2000-08-22

Yee, Deborah

Metal treatment

Stock

Nickel base

420445, C22C 1905

Patent

active

061066400

ABSTRACT:
Intermetallic alloys composed essentially of: 15.5% to 17.0% Al, 3.5% to 5.5% Mo, 4% to 8% Cr, 0.04% to 0.2% Zr, 0.04% to 1.5% B, balance Ni, are characterized by melting points above 1200.degree. C. and superior strengths at temperatures above 1000.degree. C.

REFERENCES:
patent: 5006308 (1991-04-01), Liu et al.
patent: 5108700 (1992-04-01), Liu
Y. F. Han et al, "Microstructural Stability of A DS Ni.sub.3 Al Base Superalloy," Proceedings of the International Workshop, Ordered Intermetallics (IWO '92), Sep.-28-Oct. 1, 1992, pp. 356-362.

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