Nitrogen strengthened fe-ni-cr alloy

Details Nitrogen strengthened fe-ni-cr alloy Nitrogen strengthened fe-ni-cr alloy

C - Chemistry, Metallurgy

22

C

75/14

C22C 38/50 (2006.01) C22C 30/00 (2006.01) C22C 38/00 (2006.01)

Patent

CA 1311374

ABSTRACT OF THE DISCLOSURE A corrosion resistant metal alloy having improved formability and workability is disclosed which alloy contains in weight percent about 25% ot 45% nickel, about 12% to 32% chromium, of at least one of 0.1% to 2.0% columbium, 0.2% to 4.0% tantalum, and 0.05% to 1.0% vandaium, up to about 0.20% carbon, about 0.05% to 0.50% nitrogen and the balance being iron plus impurities and wherein the carbon and nitrogen content are controlled so that the amount of free carbon and nitrogen defined as (C+N)F = C + N - Image - Image - Image is greater than 0.14% and less than 0.29%. The alloy may also include in limited amounts one of aluminum, titanium, silicon, manganese, cobalt, molybdenum, tungsten, boron, zirconium, yttrium, cerium and other rare earth metals.

590396

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