04078922 is referenced by 22 patents and cites 2 patents.

Cobalt base alloys for use at elevated temperatures are disclosed that possess excellent resistance to oxidation/corrosion at elevated temperatures in combination with mechanical properties which exceed those of similar alloys currently in use. The resistance to oxidation/corrosion is afforded by a particular combination of aluminum and chromium which act to form a protective alumina layer and a synergistic combination of hafnium and yttrium which act to promote adherence of the alumina. Refractory metal additions are utilized to improve the mechanical properties. The alloys of the invention are suited for use in gas turbine engines as well as industrial applications such as furnaces and chemical process apparatus.

Title
Oxidation resistant cobalt base alloy
Application Number
5/638882
Publication Number
4078922
Application Date
December 8, 1975
Publication Date
March 14, 1978
Inventor
Edward Joseph Felten
Cheshire
CT, US
Maurice Louis Gell
Newington
CT, US
Emanuel Collins Hirakis
Mansfield
CT, US
Stephen Thomas Magyar
Harwinton
CT, US
Agent
Charles E Sohl
Assignee
United Technologies Corporation
CT, US
IPC
C22C 19/07
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