| 碳氮共渗提高空心圆柱滚子轴承寿命的研究 |
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| 引用本文： | 罗虹,姚吉祥.碳氮共渗提高空心圆柱滚子轴承寿命的研究[J].热加工工艺,1993(4):21-23. |
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| 作者姓名： | 罗虹 姚吉祥 |
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| 作者单位： | 清华大学，清华大学，北京理化测试中心，北京理化测试中心 100084，100084 |
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| 摘 要： | 通过GCr15钢碳氮共渗,在表层获得大量的残余奥氏体。磨损中,马氏体组织剥落,残余奥氏体则成小岛状,进而在表面迁移发生形变诱发马氏体相变,使耐磨性得以提高。同时,共渗在空心滚子内表面造成的压应力对改善弯曲疲劳性能有利。
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| 关 键 词： | 圆柱滚子 碳氮共渗 轴承 寿命 |
Study on Improving the Service Life of Hollow Cylinder Roller Bearing by Nitrocarburizing |
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| Luo Hong Liu Jiajun Yao Jixiang Yao Pei.Study on Improving the Service Life of Hollow Cylinder Roller Bearing by Nitrocarburizing[J].Hot Working Technology,1993(4):21-23. |
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| Authors: | Luo Hong Liu Jiajun Yao Jixiang Yao Pei |
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| Affiliation: | Luo Hong Liu Jiajun Yao Jixiang Yao Pei |
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| Abstract: | A lot of retained austenite is obtained in surface layer of bearing steel by the nitrocarburizing. During the process of wearing, the martensite peel off, the retained austenite forms is land. surface deformation induced martenstic transformation, and therefor, the wear resistance of the steel is improved. Meantime, the compressive stress in inner surface of hollow roller by nitrocarburizing is available for improvement of bend fatigue property. |
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| Keywords: | hollow cylinder roller wear residual austenite |
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