| 过载列60Si_(2)Mn钢弯曲疲劳性能的影响 |
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| 引用本文： | 何玉定,杨大丰. 过载列60Si_(2)Mn钢弯曲疲劳性能的影响[J]. 湘潭大学自然科学学报, 1997, 0(3) |
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| 作者姓名： | 何玉定 杨大丰 |
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| 作者单位： | 湘潭大学机械工程系!湘潭，411105 |
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| 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．
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| 关 键 词： | 拉伸过载 压缩过载 延迟效应 加速效应 弯曲疲劳寿命 |
EFFECT OF OVERLOAD ON BEND FATIGUE PROPERTY OF 60Si_(2)Mn STEEI |
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| He Yuding, Yang Dafeng. EFFECT OF OVERLOAD ON BEND FATIGUE PROPERTY OF 60Si_(2)Mn STEEI[J]. Natural Science Journal of Xiangtan University, 1997, 0(3) |
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| Authors: | He Yuding Yang Dafeng |
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| Abstract: | 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. |
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| Keywords: | tensile overload compressive overload retardation phenomenon acceleration phenomenon bend fatiguelife |
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