为了提高零件表面的硬度和耐磨性,使用真空熔烧法,在计和耐磨试验得到了WC复合涂层不同深度的硬度分布及耐磨性变化数据.结果表明:涂层中扩散层部分的硬度最低,涂层的硬度较基体和扩散层都有较大的提高,而且涂层部分不同深度硬度变化不大;在干摩擦条件下,涂层最外层的耐磨性最好,中间几层的耐磨性能相当,靠近扩散层处的涂层的性能最差.
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