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1. (WO2014197088) FABRICABLE, HIGH STRENGTH, OXIDATION RESISTANT NI-CR-CO-MO-AL ALLOYS

Pub. No.:    WO/2014/197088    International Application No.:    PCT/US2014/028224
Publication Date: Fri Dec 12 00:59:59 CET 2014 International Filing Date: Sat Mar 15 00:59:59 CET 2014
IPC: C22C 19/05
Applicants: HAYNES INTERNATIONAL, INC.
Inventors: SRIVASTAVA, S. Krishna
PIKE, Lee
Title: FABRICABLE, HIGH STRENGTH, OXIDATION RESISTANT NI-CR-CO-MO-AL ALLOYS
Abstract:
Ni-Cr-Co-Mo-Al based alloys are disclosed which contain 15 to 20 wt.% chromium, 9.5 to 20 wt.% cobalt, 7.25 to 10 wt.% molybdenum, 2.72 to 3.9 wt.% aluminum, along with typical impurities, a tolerance for up to 10.5 wt.% iron, minor element additions and a balance of nickel. These alloys are readily fabricable, have high creep strength, and excellent oxidation resistance up to as high as 2100°F (1149°C). This combination of properties is useful for a variety of gas turbine engine components, including, for example, combustors.