超细晶粒钢中晶粒尺寸对塑性的影响模型*
刘觐1,朱国辉1,2(
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MODEL OF THE EFFECT OF GRAIN SIZE ON PLASTI-CITY IN ULTRA-FINE GRAIN SIZE STEELS
Jin LIU1,Guohui ZHU1,2()
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图4. 晶界阻碍Frank-Read源(FR源)增殖产生位错的示意图
Fig.4. Schematic of grain boundary blocks the process of Frank-Read source (FR source) emits dislocations (Both da and db represent grain size and da>db)
