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.
变形由强烈的塑性变形到弱变形，变质由角闪岩相到低绿片岩相及低于低绿片岩相。
The deformation was changing from plastic intensity to weakness and the metamorphic facies ranged from amphibolite to low-grade greenschist.
从低合金化、变质处理、热塑性变形、铸造和热处理等几个方面，综述了国内提高普通白口铸铁韧性研究的进展情况。
The ways of improving the toughness of white cast iron Were reviewed by means of low-alloying, modification, hot plast deformation, casting and heat treatment.
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