Effect of Annealing Treatment on the Structure and Microhardness of Cold-Sprayed Nanostructured FeAl/WC Composite Coating

Hong Tao Wang; Guan Jun Yang; Chang Jiu Li; Cheng Xing Li

doi:10.4028/www.scientific.net/KEM.373-374.73

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 373-374Effect of Annealing Treatment on the Structure and...

Effect of Annealing Treatment on the Structure and Microhardness of Cold-Sprayed Nanostructured FeAl/WC Composite Coating

Abstract:

Nanostructured FeAl/WC intermetallic composite coatings were prepared by cold spaying of the ball-milled powders. The effect of annealing on the coating structure and microhardness was examined. It was found that the nanocrystalline structure of the milled feedstock was retained in the cold sprayed coatings. The FeAl intermetallic phases were formed from the milled Fe(Al) solid solution during the post-spraying annealing at 550oC. The microhardness of the as-sprayed coating was about 680HV0.1 and it decreased a little with increasing the annealing time at 550oC.

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Key Engineering Materials (Volumes 373-374)

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73-76

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https://doi.org/10.4028/www.scientific.net/KEM.373-374.73

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March 2008

Authors:

Hong Tao Wang, Guan Jun Yang, Chang Jiu Li, Cheng Xing Li

Keywords:

Annealing Treatment, Cold Spraying, Fe-Al, Intermetallic Coatings, Microhardness

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