摘要
金属材料在低周疲劳中可测出材料的循环硬（软）化现象，但无法得到高周疲劳时材料循环曲线．本文利用测定疲劳后材料力学性能来反映高周疲劳产生的材料硬化现象，而且分析了不同载荷和不同加载顺序对材料硬化程度的影响，与试验结果相符合．
The hardening or softening of metal is measured during low cycle fatigue. It is very difficult to draw a cycling graph in high cycle fatigue. In this paper,hardening of metal is observed from measuring the change of mechanic property during fatigue. It is studied that different loadings and programs of loading affect the degree of hardening metal. The result of study is coincident with the test.
出处
《青岛建筑工程学院学报》
1997年第1期45-48,共4页
Journal of Qingdao Institute of Architecture and Engineering
关键词
疲劳
循环硬化
屈服强度
位错
正火钢
fatigue,cyclical hardening,yield strength,dislocation,normalizing steel
