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预先塑性变形对正火钢疲劳极值的影响
Affection of Pre-plastic-strain on Fatigue Extremum about the Normalized Steel
【摘要】 研究并分析了预先塑性变形对正火35 钢疲劳极值的影响规律及机理。结果表明:随着预应变量的增加,疲劳裂纹闭合行为变化不大;而钢的疲劳极值Δ Kth 及本质极值Δ Kith 则是先下降后增加的。
【Abstract】 It states the mechanism and variety of the fatigue extremum about the normalized No.35 Steel made pre-plastic-strain. Increasing of this strain, fatigue crack changes a little, but its extremum ΔKth and essential extremumΔKith just descends and then rises.
- 【文献出处】 机械设计与制造工程 ,MACHINE DESIGN AND MANUFACTURING ENGINEERING , 编辑部邮箱 ,1999年05期
- 【分类号】TG156.4
- 【被引频次】1
- 【下载频次】48