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采用等离子喷涂工艺以最佳工艺参数制得 Ｃｒ２Ｏ３涂层。在 ＳＲＶ高温摩擦磨 损试验机上测量了该涂层与Ａｌ２Ｏ３球对磨从室温到８００℃时的摩擦系数和磨损量，结 果发现摩擦系数和磨损量都随温度上升而下降。 ＡＥＳ和 ＳＥＭ分析和观察磨损表面结 果表明；常温时涂层磨损机制为断裂磨损；高温时磨损表面发生材料转移和塑性流动， 并且在涂层表面有致密保护膜生成，该致密保护膜不仅降低摩擦系数而且降低涂层磨损。 文中还讨论了负荷对摩擦系数和涂层磨损的影响。
The plasma spraying process is adopted to obtain the Cr2O3 coating with the best process parameters. The friction coefficient and wear amount of the coating and the Al2O3 ball on the mill from room temperature to 800 ℃ were measured on the SRV high temperature friction and wear tester. It was found that both the friction coefficient and the wear amount decreased as the temperature increased. AES and SEM analysis and observation of the worn surface results show that the wear mechanism of the coating is fracture wear at room temperature; the material transfer and plastic flow occur on the worn surface at high temperature, and the dense protective film is formed on the surface of the coating, the dense protective film not only reduces the friction Coefficient also reduces coating wear. The paper also discusses the impact of load on the coefficient of friction and coating wear.