在此基础上，建立了陶瓷镜面磨削塑性变质层的物理模型，并用微刃切削理论解释了表面晶粒的碎化机理。
Based on these, the physical model of plastic degenerating layer has been established and the fractional mechanism of surface crystal particles has been explained by micro-edge cutting theory.
这些结果说明，磨削表面发生了严重的塑性形变。冷作塑性形变强化是磨削影响层的屈服强度得以提高的根本原因。
All these results show that severe plastic deformation occurred on the grinding surface, the strain strengthening is the basic reason for the increase of the yield strength in grinding affected layer.
另外材料自身特性也是影响边界缺陷的关键因素，塑性好的材料磨削后其边界缺陷相对较少。
Finally, the property of materials is a key factor affecting the edge damage, the hard-brittle materials with good ductility have little edge damage after grinding.
瓷质玻化砖磨削表面是由莫来石、玻璃相和残留石英的塑性变形和脆性断裂形成的；
The results show that the ground surface was formed by brittle fracture and plastic deformation of the compositions of ceramic tile, including mullite, g1ass phase and residual quartz.
结果表明：磨削损伤的主要形式有显微塑性变形磨痕、断裂剥落坑、磨削微裂纹和材料疏松区的塌坑；
It is showed that:(1)the major surface damage patterns due to grinding are microplastic deformation trace, fracture chipping pit, microcracks, and subsidence in the loosen region of material;
结果表明：磨削损伤的主要形式有显微塑性变形磨痕、断裂剥落坑、磨削微裂纹和材料疏松区的塌坑；
It is showed that:(1)the major surface damage patterns due to grinding are microplastic deformation trace, fracture chipping pit, microcracks, and subsidence in the loosen region of material;
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