| 42CrMo钢齿轮轴开裂原因分析 |
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| 引用本文： | 田香菊,李祝群,郑建军,孙钢.42CrMo钢齿轮轴开裂原因分析[J].太原科技大学学报,2005,26(1):13-15. |
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| 作者姓名： | 田香菊 李祝群 郑建军 孙钢 |
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| 作者单位： | 1. 太原科技大学,太原,030024
2. 太原重型机械集团公司热处理分公司,太原,030024 |
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| 摘 要： | 对42CrMo钢齿轮轴调质处理后出现的纵向裂纹进行了较详尽的分析,确定其开裂原因主要是由于锻造温度过高、时间过长,在晶界处发生了选择性氧化而导致晶界脆化所引起的。
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| 关 键 词： | 锯齿状裂纹 选择性氧化 晶界 |
| 文章编号： | 1000-159X(2005)01-0013-05 |
| 修稿时间： | 2004年4月29日 |
Cracking Reason Analysis of 42CrMo Steel Gear-axle |
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| TIAN Xiang-ju,LI Zhu-qun,ZHENG Jian-jun,SUN Gang.Cracking Reason Analysis of 42CrMo Steel Gear-axle[J].Journal of Taiyuan University of Science and Technology,2005,26(1):13-15. |
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| Authors: | TIAN Xiang-ju LI Zhu-qun ZHENG Jian-jun SUN Gang |
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| Institution: | TIAN Xiang-ju~1,LI Zhu-qun~2,ZHENG Jian-jun~1,SUN Gang~1 |
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| Abstract: | After quenching and tempering treatment, the vertical cracks of 42CrMo steel gear-axle were analyzed in detail. The results show that cracking reason is due to selective oxidation on grain boundary,which is caused by over-temperature and overtime heating of forging. |
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| Keywords: | sawtooth crackle selective oxidation grain boundary |
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