Study on Microstructure and Wear Properties of (Ti,W)C/Fe Surface Composite Coating

Jing Wang; Si Jing Fu; Bing Hua Jiang; Yi San Wang

doi:10.4028/www.scientific.net/AMR.472-475.2779

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Study on Microstructure and Wear Properties of (Ti,W)C/Fe Surface Composite Coating

Abstract:

(Ti,W)C particles reinforced Fe-based surface composite coatings were fabricated by in-situ synthesis and powder metallurgy route. The microstructure, interface and wear properties were investigated by X-ray diffraction, scanning electron microscopy and dry sliding wear test. The results show that (Ti,W)C carbides form via in situ reaction between titanium, ferrotungsten and graphite. The morphology of (Ti,W)C is mainly rectangular form. The interface between (Ti,W)C and iron matrix is found to be free from cracks and deleterious phases. The coating reinforced by (Ti,W)C particles possesses higher wear resistance than that of the substrate.