| 深氮化硬化钢的接触疲劳试验研究 |
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| 引用本文： | 江志华,李志,佟小军,李志明.深氮化硬化钢的接触疲劳试验研究[J].航空材料学报,2006,26(3):303-304. |
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| 作者姓名： | 江志华 李志 佟小军 李志明 |
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| 作者单位： | 北京航空材料研究院,北京,100095 |
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| 摘 要： | 对双真空32Cr3MoVE钢深氮化件进行接触疲劳试验研究和全面分析.结果表明,失效形貌呈典型的接触疲劳特征,两种疲劳裂纹形成模式同时存在.深氮化试件具有优良的硬度梯度和残余压应力分布,与渗碳件相比接触疲劳寿命提高3.3～4.5倍.
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| 关 键 词： | 接触疲劳寿命 失效形貌 硬度梯度 残余压应力 |
| 文章编号： | 1005-5053(2006)03-0303-02 |
| 修稿时间： | 2006年3月20日 |
Experimental Study of Contact Fatigue for Deep Nitrided Steel |
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| JIANG Zhi-hua,LI Zhi,TONG Xiao-jun,LI Zhi-ming.Experimental Study of Contact Fatigue for Deep Nitrided Steel[J].Journal of Aeronautical Materials,2006,26(3):303-304. |
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| Authors: | JIANG Zhi-hua LI Zhi TONG Xiao-jun LI Zhi-ming |
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| Abstract: | The contact fatigue experiment study was carried out for VIM+VAR 32Cr3MoVE steel by deep nitriding.The results showed that failure morphology was of typical contact fatigue characteristics,and two modes of fatigue crack formation worked.The steel by deep nitriding possessed excellent microhardness gradient and favorable distribution of residual compressive stresses,and the contact fatigue life of nitrided steel under the given load showed a great improvement in relation to carburized 18CrNi4A steel. |
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| Keywords: | contact fatigue life failure morphology microhardness gradient residual compressive stress |
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