| 40CrNiMo合金钢应变疲劳性能的测定 |
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| 引用本文： | 黄建生,王德俊.40CrNiMo合金钢应变疲劳性能的测定[J].东北大学学报(自然科学版),1987(2). |
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| 作者姓名： | 黄建生 王德俊 |
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| 作者单位： | 东北工学院机械强度教研室
(黄建生)，东北工学院机械强度教研室(王德俊) |
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| 摘 要： | 本文试验测定了40CrNiMo 合金钢在正火状态下的应变寿命曲线和循环应力-应变曲线。通过回归分析得出了材料的6个应变疲劳参数,验证了该材料属于循环软化,但具有典型的 Massing 效应。实验证明,步增量法较单级法准确和简便。本文建议测取循环应力-应变曲线,应当采用步增量程序法取代单级法作为一种统一的试验方法。
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| 关 键 词： | 合金钢 疲劳 应变控制 循环应力-应变曲线 |
Determination of the Strain-Controlled Fatigue Properties of 40CrNiMo Steel |
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| Huang Jiansheng,Wang Dejun.Determination of the Strain-Controlled Fatigue Properties of 40CrNiMo Steel[J].Journal of Northeastern University(Natural Science),1987(2). |
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| Authors: | Huang Jiansheng Wang Dejun |
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| Institution: | Huang Jiansheng;Wang Dejun |
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| Abstract: | The strain- controlled fatigue properties of the normalized 40CrNiMo steel,including the strain- life and cyclic stress-strain relationships. are experiment-ally determined. The six strain- controlled fatigue parameters are given by meansof regression analysis of the tested data. It is verified that the material inve-stigated is of cyclic softening type with typical Massing effect. The resultsalso show that, in determining the cyclic stress-strain curve. the incremental-step method is superior to the single-step method in accuracy and convenience.Therefore, it is suggested to be used as a generalized experimental procedure. |
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| Keywords: | alloy steel fatigue strain-control cyclic stress-strain curve |
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