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作者对H70黄铜(销)—OCr18Ni9不锈钢(盘)在真空(6.65×10~(-3)Pa)和大气中滑动磨损表面材料的相互转移进行了研究,并且提出了摩擦表面的原子扩散模型。文章指出,由于摩擦的热效应致使表面原子的扩散加剧,不论是软材料还是硬材料,它们的表面微凸体在滑动摩擦过程中都可能发生局部熔化,因而磨损表面出现了材料的相互转移,即使是硬材料中的Fe原子也转移到了软材料黄铜销的磨损表面上。销材料中的Zn原子在摩擦温度较高时的扩散系数是Cu原子的2～3倍,故在摩擦副的两个磨损表面都有Zn原子富集,且以真空下的更加明显。
The authors studied the mutual transfer of H70 brass (pin) -OCr18Ni9 stainless steel (plate) under vacuum (6.65 × 10 -3 Pa) and the sliding wear surface material in the atmosphere, and proposed the atom diffusion model of the friction surface . It is pointed out that due to the thermal effect of friction, the diffusion of surface atoms is exacerbated. The surface asperities may be partially melted in the process of sliding friction, both soft and hard, and the worn surfaces have the mutual transfer of materials. The Fe atoms in the hard material are also transferred to the worn surface of the soft material brass pin. The diffusion coefficient of Zn atom in pin material is 2 ~ 3 times higher than that of Cu atom at the high friction temperature, so Zn atoms are enriched on both wear surfaces of the friction pair, which is more obvious under vacuum.