用环块磨损试验机对铬电极电火花放电熔涂层的干摩擦滑动磨损特性进行了研究.结果表明,轻载低速条件下,熔涂层的干摩擦滑动磨损机制以氧化磨损为主,与淬火低温回火态45钢相比,熔涂层的耐磨性是45钢的2~4倍;重载高速条件下,熔涂层的干摩擦滑动磨损机制比较复杂,存在磨料磨损,粘着磨损,剥层磨损等多种机制,熔涂层的耐磨性是45钢的15倍以上.
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