摘要
通过对高周疲劳过程中退火４５＃钢、正火４５＃钢及１６Ｍｎ钢光滑试样的表面维氏显微硬度测试，研究了不同控制应力水平下试样表面显微硬度随循环周次的变化关系．基于硬度的物理意义，初步探讨了高周疲劳过程中材料的循环微观塑性变形行为及其循环硬（软）化特征．
The dependence of microhardness on cycle number was studied at different levels of controlledstress via micro vickers applied to the smooth surfaces of such steel specimens as annealed and normalized ti45 and hot-rolled 16Mn in high-cyCle fatigue process. Based On the physical meaning of hardness,the microscopic plastic deformation behavior of materials used and their cyclic s6ftening/hardening characteristics during high-cycle fatigue were discussed generally.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
1995年第4期420-423,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金
关键词
高周疲劳
显微硬度
塑性变形
钢
硬化
疲劳损伤
high-cycle fatigue
microhardness
microsopic cyclic plasticity
hardening/softening
