Oxidation resistant rhenium alloys

C - Chemistry – Metallurgy – 22 – C

Patent

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C22C 27/00 (2006.01) B22F 7/00 (2006.01) C22C 1/04 (2006.01) F16C 17/24 (2006.01) F16C 33/12 (2006.01) H02K 7/02 (2006.01) H02K 7/08 (2006.01) H02K 7/09 (2006.01)

Patent

CA 2484686

An alloy based on a refractory metal such as rhenium resists oxidation by the inclusion of alloying substances with affinity for oxygen or other oxidizing substances. This alloy has excellent high temperature strength and will resist oxidation. The alloy includes oxidation resistant substances, such as soluble metals, that attract oxygen and may form a protective oxide layer over the remaining portion of the rhenium-alloy part or piece. Such soluble alloying constituents may include chromium, cobalt, nickel, titanium, thorium, aluminum, hafnium, vanadium, silicon, aluminum, and yttrium.

L'invention concerne un alliage à base d'un métal réfractaire, tel que le rhénium, résistant à l'oxydation par inclusion de substances d'alliage présentant une affinité pour l'oxygène ou d'autres substances oxydantes. Cet alliage présente une excellente résistance à des températures élevées et résiste à l'oxydation. L'alliage comprend des substances résistant à l'oxydation, telles que des métaux solubles, attirant l'oxygène et pouvant former une couche d'oxyde protectrice sur la partie restante de la partie ou pièce en alliage de rhénium. On peut citer parmi de tels constituants solubles d'alliage: du chrome, du cobalt, du nickel, du titane, du thorium, de l'aluminium, de l'hafnium, du vanadium, du silicium, de l'aluminium et de l'yttrium.

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