Cadium-free corrosion protection for turbines

Details Cadium-free corrosion protection for turbines Cadium-free corrosion protection for turbines

1995-05-15

1997-01-21

Zimmerman, John

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428680, 428685, 427328, 427405, 416241R, B32B 1518, F01D 528

Patent

active

055958311

ABSTRACT:
Steam or gas turbine components comprising chromium steel have their fluid directing surfaces protected from corrosion by a surface layer coating consisting essentially of major weight amount of nickel and minor weight amounts of zinc, optionally with boron added, over a nickel preplate which limits deleterious diffusion of zinc into the surface substrate.

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J. W. Dini et al., "Electrodeposition of Zinc-Nickel Alloy Coatings", Metal Finishing, Sep. 1979, pp. 53-57.

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