Alloy based on a silicide containing at least chromium and molyb

Details Alloy based on a silicide containing at least chromium and molyb Alloy based on a silicide containing at least chromium and molyb

1995-09-19

1998-02-17

Simmons, David A.

Alloys or metallic compositions

Chromium base

420429, 420588, 148407, 148409, C22C 2706, C22C 3000

Patent

active

057188670

ABSTRACT:
An alloy based on a silicide containing at least chromium and molybdenum contains the following constituents in atomic percent: chromium 41-55, molybdenum 13-35 and silicon 25-35, or chromium 35-55, molybdenum 13-35, silicon 13-35, yttrium 0.001-0.3, and/or tungsten 0.001-10. This alloy is distinguished by a high oxidation resistance and still has a mechanical strength at temperatures of over 1000.degree. C. which favors its use as structural material in gas turbines.

REFERENCES:
patent: 3174853 (1965-03-01), Sims et al.
patent: 5330590 (1994-07-01), Raj
patent: 5454884 (1995-10-01), Hashimoto et al.
Derwint abstract of WO 9307302, 1993.
"A Preliminary Assessment of the Properties of a Chromium Silicide Alloy for Aerospace Applications", S.V. Raj, Mater.Sci.Eng. and Proc. 3rd. Intern. Conf. on High-Temperature Intermetallics, May 9, 1994.

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