METHOD OF APPLYING COATING ONTO TURBINE BLADE Russian patent published in 1997 - IPC

Abstract RU 2078148 C1

FIELD: application of protective coatings. SUBSTANCE: turbine blade is covered with three- layer heat-protective coating in which, into the nickel-based first layer, 7-9% of cobalt as alloying element is additionally introduced, the second layer is formed by alloying with nickel, 13-16%, and yttrium, 1.5-1.8%, aluminium basis, the both layers having minimum thickness. Before the third ceramic layer is formed, vibration polishing and blowing with polishing powder are performed followed by additional diffusion vacuum tempering and oxidative tempering. EFFECT: improved composition and procedure. 2 dwg

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RU 2 078 148 C1

Authors

Shamarina G.G.

Malyshev O.I.

Dates

1997-04-27—Published

1993-07-05—Filed