研究了一组经丫辐射后的聚四氟乙烯试样的磨损与其某些机械性能之间的相互关系。研究的中心内容是磨损率与(二)一’的相关性(a和￡分别表示试样受拉断裂时的应力和应变),即所谓的Ra,二r相关性。造成这种相关性即非线性,又无比例关系的主要原因是由于磨屑粒子对摩擦面形貌的改变。还计算了磨损过程所消耗的功、有效局部体积形变以及 The relationship between the wear of a group of Teflon samples after radiation and some of their mechanical properties was studied. The center of the study is the correlation between the rate of wear and (b) (a and b denote the stress and strain at tensile fracture of the specimen, respectively), the so-called Ra, Er correlation. The main reason for this non-linear and non-proportional relationship is the change in the topography of the friction surface caused by wear debris particles. The work lost during the wear process, the effective local bulk deformation, and