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研究了干摩擦状态下11Mo4Cr2V/42CrMo系统摩擦副材料的摩擦磨损性能和磨损机理.采用光学显微镜、扫描电镜、能谱分析仪和摩擦磨损试验进行分析.结果表明:干摩擦120 min后,11Mo4Cr2V材料的比磨损量较小,仅为2.096×10-15 kg/(m.N),材料的耐磨性能较好;摩擦系统中2种摩擦副材料的比磨损量非常接近,匹配效果很好;11Mo4Cr2V材料的磨损机理为磨粒磨损和黏着磨损的共同作用,42CrMo材料的磨损机理以磨粒磨损为主,伴随轻微的黏着磨损;42CrMo对偶材料的硬度高于11Mo4Cr2V材料的硬度,因此磨损程度较低.
The friction and wear properties and the wear mechanism of the 11Mo4Cr2V / 42CrMo system friction pair materials under dry friction condition were studied.The results of optical and scanning electron microscopy, energy dispersive spectroscopy and friction and wear tests show that after 11 min of dry friction, the 11Mo4Cr2V material The specific abrasion loss is only 2.096 × 10-15 kg / (mN), and the wear resistance of the material is better. The specific abrasion loss of the two friction pairs in the friction system is very close and the matching effect is very good. The 11Mo4Cr2V material The wear mechanism of the 42CrMo material is abrasive wear, with a slight adhesive wear. The hardness of the 42CrMo dual material is higher than the hardness of the 11Mo4Cr2V material, so the wear degree is lower.