Low cost chrome and chrome/aluminide process for moderate...

Details Low cost chrome and chrome/aluminide process for moderate... Low cost chrome and chrome/aluminide process for moderate...

2005-04-26

2005-04-26

Chen, Bret (Department: 1762)

Stock material or miscellaneous articles

All metal or with adjacent metals

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

C428S651000, C428S666000, C427S374100, C427S376800, C427S380000, C427S383700, C427S405000, C427S419100

Reexamination Certificate

active

06884524

ABSTRACT:
A low cost chromide and chromide/aluminide process for moderate temperature applications. A gas turbine engine component is cleaned and coated with a layer of metal, generally chromium or chromium and aluminum, containing paint. The metal containing paint layer is heated to a first temperature for a first period of time in an air environment to volatilize the solvents in the paint. The metal containing paint layer is heated to a second temperature for a second period of time in an oxygen-free atmosphere to volatilize the solvents in the paint. The now metal layer and component are heated to a third temperature for a third period of time to interdiffuse the metal and the metal of the component. The component and diffusion layer are then cooled to ambient temperature.

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