本文将讨论机器零件(如齿轮、轴承、滑块、连接结等)的磨损,并主要侧重于磨损机理的定性叙述。实验证明,在最初的阶段的磨合以后,磨损量随滑动距离的变化率通常为常数,并与加在滑动表面的载荷成正比。这一比例常数k,称做体积磨损常数。它是磨损过程严重程度的衡量值。图1是在于摩擦及润滑条件下钢对钢磨损实测推算出来的k值。 This article will discuss the wear of machine parts such as gears, bearings, sliders, couplings, etc., with a focus on the qualitative narration of the wear mechanism. Experiments have shown that the rate of change of wear as a function of slip distance after initial run-in is generally constant and proportional to the load applied to the sliding surface. This proportional constant k, called the volume wear constant. It is a measure of the severity of the wear process. Figure 1 is in the friction and lubrication conditions measured steel wear measured k value.