摘要
对60Si2Mn钢的弯曲疲劳性能进行了研究．考察了拉伸过载和压缩过载对其弯曲疲劳行为的影响规律．并用扫描电镜对疲劳断口进行了观察和分析．结果表明，周期性的拉伸过载可以延长弯曲疲劳寿命，而周期性的压缩过载则缩短弯曲疲劳寿命．
The bend fatigue property of 60Si2Mn steel has been studied. The effect of tensile overlood and compressive ouerlood on its bend fatigue behavior has been investigated. Bend fatigue fracture has been observed and analysed by using SEM. Results show that periodic tensile ouerllad can lengthen fatigue life,and periodic compressive ouerload can shorten bend fatigue life.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1997年第3期96-100,共5页
Natural Science Journal of Xiangtan University
基金
国家自然科学基金
关键词
拉伸过载
压缩过载
延迟效应
弯曲疲劳寿命
钢材
tensile overload, compressive overload, retardation phenomenon, acceleration phenomenon, bend fatiguelife
