Chromium-based alloy

Details Chromium-based alloy Chromium-based alloy

1995-05-15

1997-03-04

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75243, 75244, 75245, C22C 104, C22C 110

Patent

active

056081740

ABSTRACT:
The invention relates to a chromium-based alloy which has a chromium content of more than 65% by weight and the following composition: 0.005 to 5% by weight of one or more oxides of the rare earth elements and 0.1 to 32% by weight of one or more metals selected from the group comprising iron, nickel and cobalt, the remainder being chromium.
The alloy may furthermore contain up to 30% by weight of one ore more metals selected from the group comprising Al, Ti, Zr and Hf, up to 10% by weight of one or more metals selected from the group comprising V, Nb, Mo, Ta, W and Re and up to 1% by weight of C and/or N and/or B and/or Si.
Compared with pure chromium the alloy has a substantially improved oxidation resistance and improved corrosion resistance, in particular with respect to vanadium pentoxide.

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English-language Abstract of German Patent No. DE 2105750.
English-language Abstract of German DE 2303802.
English-language translation of Abstract from German Patent Disclosure No. 1608116.

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