Steam turbine components with differentially coated surfaces

Details Steam turbine components with differentially coated surfaces Steam turbine components with differentially coated surfaces

1996-05-17

1997-11-04

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

416241R, F04D 2944

Patent

active

056832265

ABSTRACT:
Steam turbine fluid directing components are improved in erosive wear resistance by application of either relatively tougher and relatively less hard thermal spray or relatively harder and relatively less tough diffusion alloy surface modification to different portions of the component as a function of the locally greater or locally smaller angle of attack of solid particles on those portions in the use condition of the component.

REFERENCES:
patent: 4492522 (1985-01-01), Rossmann et al.
patent: 4776765 (1988-10-01), Sumner et al.
patent: 5348446 (1994-09-01), Lee et al.
patent: 5551840 (1996-09-01), Benoit et al.
patent: 5591009 (1997-01-01), Mannava et al.
patent: 5601410 (1997-02-01), Quinlan

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