C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 19/05 (2006.01)
Patent
CA 2054767
The specification discloses nickel alumi- nide alloys including nickel, aluminum, chrom- ium, zirconium and boron wherein the concen- tration of zirconium is maintained in the range of from about 0.05 to about 0.35 atomic per- cent to improve the ductility, strength and fab- ricability of the alloys at 1200°C. Titanium may be added in an amount equal to about 0.2 to about 0.5 atomic percent to improve the me- chanical properties of the alloys and the addi- tion of a small amount of carbon further im- proves hot fabricability.
Liu Chain T.
Sikka Vinod K.
Macrae & Co.
Martin Marietta Energy Systems Inc.
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