Nickel aluminide alloy for high temperature structural use

Details Nickel aluminide alloy for high temperature structural use Nickel aluminide alloy for high temperature structural use

1989-06-09

1991-04-09

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

148428, 420449, C22C 1905

Patent

active

050063081

ABSTRACT:
The specification discloses nickel aluminide alloys including nickel, aluminum, chromium, zirconium and boron wherein the concentration of zirconium is maintained in the range of from about 0.05 to about 0.35 atomic percent to improve the ductility, strength and fabricability of the alloys at 1200.degree. C. Titanium may be added in an amount equal to about 0.2 to about 0.5 atomic percent to improve the mechanical properties of the alloys and the addition of a small amount of carbon further improves hot fabricability.

REFERENCES:
patent: 4612165 (1986-09-01), Liu et al.
patent: 4711761 (1987-12-01), Liu et al.
patent: 4722828 (1988-02-01), Liu
patent: 4731221 (1988-03-01), Liu
C. T. Liu, "Development of Nickel and Nickel-Iron Aluminides for Elevated-Temperature Structural Use," American Soc. for Testing and Materials, Special Technical Publication 979 (1988).
C. T. Liu et al., "Nickel Aluminides for Structural Use," Journal of Metals, vol. 38, No. 5, May 1986, pp. 19-21.

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