Dry Sliding Wear Properties of HVOF Sprayed WC–10Co–4Cr Coating

Yuping Wu, Bo Wang, Sheng Hong, Jianfeng Zhang, Yujiao Qin, Gaiye Li

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    The high-velocity oxygen-fuel (HVOF) spraying process was used to prepare WC–10Co–4Cr coating onto AISI 1045 steel substrate. The microstructure, hardness and dry sliding wear behavior of the coating were investigated and compared with cold work die steel Cr12MoV. The results showed that, the coating had low porosity, high microhardness, and homogeneous distribution of WC particles. The coating was composed of WC and W2C phases. With increase in load, the friction coefficients of the coating and the cold work die steel Cr12MoV decreased. The friction coefficients and wear mass losses of the coating were lower than that of the steel Cr12MoV. The dominant wear mechanism of the coating under both loads (30 and 50 N) was extrusion deformation and abrasion wear. For steel Cr12MoV, the dominant wear mechanism was plastic deformation and oxidation.

    Original languageEnglish
    Pages (from-to)581-586
    Number of pages6
    JournalTransactions of the Indian Institute of Metals
    Volume68
    Issue number4
    DOIs
    Publication statusPublished - 2015 Aug 28

    Keywords

    • Coating
    • HVOF
    • WC–10Co–4Cr
    • Wear

    ASJC Scopus subject areas

    • Metals and Alloys

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