| 轴承钢中硫化物夹杂诱发疲劳裂纹的微观分析 |
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| 引用本文： | 马惠霞,李文竹,黄磊,王晓峰,隋晓红. 轴承钢中硫化物夹杂诱发疲劳裂纹的微观分析[J]. 金属热处理, 2012, 37(3): 119-121 |
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| 作者姓名： | 马惠霞 李文竹 黄磊 王晓峰 隋晓红 |
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| 作者单位： | 鞍钢股份有限公司技术中心,辽宁鞍山,114009 |
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| 摘 要： | 对轴承钢中硫化物夹杂与疲劳裂纹的关系进行了分析。结果表明,裂纹起源于表层下的硫化物夹杂,然后扩展到组织偏析带内,并沿偏析带扩展,最终使轴承发生接触疲劳失效。硫化物夹杂的存在破坏了基体连续性,在应力作用下形成分离裂纹并最终导致工件失效。
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| 关 键 词： | 轴承钢 疲劳裂纹 硫化物夹杂 |
Analysis of sulphide inclusion induced fatigue crack in bearing steel |
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| MA Huixia,LI Wenzhu,HUANG Lei,WANG Xiaofeng,SUI Xiaohong. Analysis of sulphide inclusion induced fatigue crack in bearing steel[J]. Heat Treatment of Metals, 2012, 37(3): 119-121 |
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| Authors: | MA Huixia LI Wenzhu HUANG Lei WANG Xiaofeng SUI Xiaohong |
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| Affiliation: | (Technology Center,Angang Steel Co.,Ltd.,Anshan Liaoning 114009,China) |
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| Abstract: | The relationship between sulphide inclusion and fatigue crack in bearing steel was analysed.The results show that the crack originated from the sulphide inclusion under the surface,then propagating to segregated brand.The sulphide inclusion broke the continuity of the base structure,resulting in separation crack under stress,which led to fatigue fracture. |
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| Keywords: | bearing steel fatigue crack sulphide inclusion |
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