在T-11摩擦磨损试验机上研究了不同载荷下高速电弧喷涂3Cr13不锈钢涂层的磨损寿命.提出载荷-涂层磨损寿命耦合的关系函数方程.通过对涂层磨损形貌观察,分析了不同载荷对磨损失效机制的影响.结果表明:当载荷较低时,涂层磨损寿命分散程度大,磨损主要失效机制为点蚀和剥落;当载荷较高时,涂层磨损寿命分散程度小,分层是引发涂层磨损失效的关键机制. The wear life of 3Cr13 stainless steel coating with high speed arc spraying under different loads was studied on a T-11 friction and wear tester, and the relationship function equation of the load-coating wear life coupling was proposed.Through the observation of wear morphology of the coating, On wear failure mechanism.The results show that when the load is low, the wear life of the coating is large and the main failure mechanism of wear is pitting and spalling.When the load is high, the abrasion life of the coating is less dispersed, Is the key mechanism that causes coating wear failure.