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基于对高能冲击磨损曲线发生转折的研究,提出了一种准纳米磨损机制,该机制的基本特征是:准纳米磨损机制作用下的磨损速率仅为同能量下的剥层磨损机制速率的1/10～1/3;磨屑及表面磨损坑直径约为50～120nm的准纳米尺度.形成准纳米磨损机制的充要条件为:磨损最表面层在高能冲击下已演变成由纳米晶+非晶组成的纳米结构;接触表面以下的亚表层的剥层磨损裂纹被抑制;磨损裂纹产生于纳米结构中的非晶区而不是纳米晶区.
Based on the study of the transition of high energy impact wear curve, a quasi-nanometer wear mechanism is proposed. The basic characteristics of this mechanism are as follows: the wear rate under the action of quasi-nanometer wear mechanism is only 1 / 10 ~ 1/3; wear debris and surface wear pit diameter of about 50 ~ 120nm quasi-nano-scale formation of the necessary and sufficient conditions for the mechanism of quasi-nano-wear: wear the most surface layer under high-energy impact has evolved into nanocrystalline + The nanostructures consist of nanostructures; the abraded wear cracks of the subsurfaces below the contact surface are suppressed; the abraded cracks originate in the nanostructures rather than the nanocrystalline regions.