F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
170/84
F01D 5/28 (2006.01) C23C 4/02 (2006.01) F01D 25/00 (2006.01)
Patent
CA 1217433
ABSTRACT OF THE DISCLOSURE This is a turbine blade for land-based or marine combustion turbines utilizing a hot-end coating, a cooler- end coating, and an intermediate transition zone with a mixture of the two end coatings. The blade has a hot end at least a portion of which is designed to operate at a temperature in excess of 1500°F, a cooler end at least a portion of which is designed to operate at a temperature of less than 1250°F, and an intermediate zone, at least a portion of which is designed to operate at between 1250 and 1500°F. The blade has a hot end coated with a low creep-type coating which is resistant to high temperature corrosion and oxidation, a cooler end coated with a ductile-type coating which is resistant to sulfide corro- sion, and an intermediate portion which is coated with a mixture of the hot end coating and the cooler end coating.
460111
Oldham And Company
Westinghouse Electric Corporation
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