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作者利用扫描电子显微镜、光学显微镜和计算机图象分析系统,对3种典型磨粒磨损磨屑的形成特点和典型试验条件下材料的磨粒磨损过程进行了研究。结果表明,在磨粒磨损条件下,典型的磨屑形态主要是切屑和块状屑,同时还有极少量的球状屑和花状屑。作者指出,切屑和块状屑分别是磨粒与被磨材料表面一次和多次相互作用的产物。在三体磨粒磨损条件下,切削是造成编号为2M和3M等硬质材料磨损的主要原因,也是4M和几种奥氏体锰钢在高载荷下磨损的重要形式;块状屑的形成是塑性较好的材料在各种磨损条件下磨损的主要形式。球状屑的形成是磨粒与被磨材料表面的接触点产生高温致使材料熔化的结果。球状屑一般是中空且表面有很多孔洞的球壳,其形成与气体有关。
Using scanning electron microscopy, optical microscopy and computer image analysis system, the authors studied the forming characteristics of three kinds of typical abrasive wear debris and the abrasive wear process of the material under the typical experimental conditions. The results show that the typical wear debris morphology is chip and lump debris, with a very small amount of spherical debris and flower debris at the same time. The authors point out that chips and lumps, respectively, are the product of one and multiple interactions of the abrasive grain with the surface of the material being milled. In the case of tripartite abrasive wear, cutting is the main cause of the wear of hard materials such as 2M and 3M, as well as an important form of wear of 4M and several austenitic manganese steels under high loads. The formation of lumps It is the main form of wear of the better plastic material under various wear conditions. The formation of spherical crumbs is the result of melting of the material caused by the high temperature generated at the contact point between the abrasive grains and the surface of the material to be ground. Spherical crumbs are generally hollow and have many holes on the surface of the spherical shell, the formation of gas-related.