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| 引用本文： | 李建华,陈士华.????????????????[J].物理测试,2006,24(6):47-0. |
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| 作者姓名： | 李建华 陈士华 |
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| 作者单位： | 1 ?人???????????? ?人 430081?? 2 ??????????????? ?人 430080 |
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| 摘 要： | 文章介绍钢板表面产生的一种搓板状裂纹。对裂纹区域的宏、微观特征和相关的显微组织进行了检验分析，认为这种裂纹的产生与钢板局部板面在奥氏体高温区经历急剧冷却而发生马氏体相变有关，相变后的马氏体自回火组织具有较高的硬度、强度和较低的延塑性，在进一步轧制时产生横向拉裂。
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| 关 键 词： | ??? ???????? ????????? |
| 文章编号： | 1001-0777(2006)06-0047-03 |
| 收稿时间： | 2006-06-21 |
Analysis on Washboard-like Surface Crack of Steel Plate |
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| LI Jian-hua,CHEN Shi-hua.Analysis on Washboard-like Surface Crack of Steel Plate[J].Physics Examination and Testing,2006,24(6):47-0. |
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| Authors: | LI Jian-hua CHEN Shi-hua |
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| Affiliation: | 1.Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;??2 NETC of Wuhan Iron and Steel(group) Corp. , Wuhan 430080, Hubei, China |
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| Abstract: | A kind of washboard-like eraek on steel plate surface is introduced. Examination and analysis of macro, micro characteristic and relevant mierostrueture of the cracked area are earried out. It shows that this kind of crack has relatied to martensitic transformation during rapid cooling from high-temperature zone of austenite on partial surface of steel plate. The self-empering structure of martettsitic transformed has higher hardness, strength and lower plaslicity, it will produce crack transverse during rolling. |
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| Keywords: | steel plate surface crack Martensitic transformation |
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