Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1986-09-03
1990-01-30
Lechert, Jr., Stephen J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
428547, 428610, 428600, 428212, 428220, 423 34, B22F 300
Patent
active
048973157
ABSTRACT:
A protective coating system for superalloys is described. The coating is an yttrium enriched aluminide, and can be formed by aluminizing an MCrAlY coated superalloy, wherein during the aluminizing process, aluminum diffuses completely through the MCrAlY coating and into the substrate. The coating system exhibits desirable oxidation resistance and resistance to thermal fatigue cracking.
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Lechert Jr. Stephen J.
Rashid James M.
United Technologies Corporation
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