Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient
Patent
1997-08-14
2000-10-10
Speer, Timothy M.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having composition, density, or hardness gradient
428615, 428639, 428652, 428668, 428670, 428680, 428941, 416241R, 416241B, 427253, 427456, B32B 1500, C23C 1600
Patent
active
06129991&
ABSTRACT:
High temperature oxidation resistance of an aluminide diffusion overcoated MCrAlY coating system is substantially improved by CVD over-aluminizing the MCrAlY type overlay coating under CVD conditions that result in reduced concentrations of such tramp impurities as S and P in the aluminized MCrAlY overlay coating region of the coating system. The CVD aluminizing conditions yield an outwardly grown aluminide over-coat on the underlying MCrAlY type coating.
REFERENCES:
patent: 4080486 (1978-03-01), Walker et al.
patent: 5658614 (1997-08-01), Basta et al.
patent: 5716720 (1998-02-01), Murphy
patent: 5763107 (1998-06-01), Rickerby et al.
patent: 5788823 (1998-08-01), Warnes et al.
Evaluation of Simple Aluminide and Platinum Modified Aluminide Coatings on High Pressure Turbine Blades after Factory Engine Testing--Round II International Gas Turbine and Aeroengine Congress and Exposition, Jun. 1-4, 1992, Conner.
Platinum Modified Aluminides--Present Status, Gas Turbine and Aeroengine Congress and Exposition, Jun. 11-14, 1990, Smith et al.
Evaluation of Simple Aluminide and Platinum Modified Aluminide Coatings on High Pressure Turbine Blades after Factory Engine Testing International Gas Turbine and Aeroengine Congress and Exhibition, Jun. 3-6, 1991, Conner et al.
DuShane Nick S.
Honick, Jr. Ronald J.
Shriver William J.
Warnes Bruce M.
Howmet Research Corporation
Speer Timothy M.
Timmer Edward J.
Young Bryant
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