Formation and oxidation resistance of silicide coatings for Mo and Mo-based alloys

J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (04): 479-481.

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Formation and oxidation resistance of silicide coatings for Mo and Mo-based alloys

Yu WANG, Yunpeng LI, Xingfang HU

Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Received:2000-03-27 Revised:2000-06-12 Online:2001-07-28 Published:2009-10-10
Contact: Yu WANG

Abstract

Abstract: The forming process of silicide coatings on pure Mo and Mo-base alloys, obtained by the gasphase deposition method, has been studied by examining the microstructure of coatings and the relationship between coating thickness and process parameters. It was shown that the growth of coatings was diffusion-control led, the diffusion of silicon to be coated into Mo or Mo-base alloys was mainly responsible for the formation of silicide. The relationship between initial silicide thickness and oxidation resistance was also investigated, and the equation of service life of the coatings at high temperature in air is presented.

Key words:

Yu WANG, Yunpeng LI, Xingfang HU. Formation and oxidation resistance of silicide coatings for Mo and Mo-based alloys[J]. J Mater Sci Technol, 2001, 17(04): 479-481.

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Formation and oxidation resistance of silicide coatings for Mo and Mo-based alloys

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