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本文根据对钢磨陨表面系统的扫描电子显微镜与俄歇电子能谱仪分析提出了摩擦磨损的概率统计模型,其要点在于将真实接触面积内的接触形式区分为3种,即氧化膜-氧化膜、金属-金属和金属-氧化膜,并且指出每一种接触形式的比率都是随机的,因而都服从概率分布。本文应用概率统计方法推导出了摩擦系数与磨损率的数学表达式。在推导过程中使用了一个“新鲜暴露金属发面”的新概念。理论计算结果与实测值相吻合。
In this paper, the probabilistic statistical model of friction and wear is proposed based on the analysis of scanning electron microscopy and Auger electron spectroscopy of the surface system of steel mill and meteorite. The key point is to classify the contact form in the real contact area into three types: Films, metal-metal and metal-oxide films, and pointed out that the ratio of each contact form is random and thus obeys the probability distribution. In this paper, the mathematical expressions of friction coefficient and wear rate are deduced by using the method of probability and statistics. A new concept of “freshly exposed metal noodles” was used in the derivation process. The theoretical calculation results are consistent with the measured values.