| 高强度船板表面裂纹产生原因分析 |
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| 引用本文： | 钱振星,李立新,段东明.高强度船板表面裂纹产生原因分析[J].武汉冶金科技大学学报,2007,30(6):564-566. |
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| 作者姓名： | 钱振星 李立新 段东明 |
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| 作者单位： | [1]武汉科技大学材料与冶金学院,湖北武汉430081 [2]武汉钢铁集团公司轧板厂,湖北武汉430083 |
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| 摘 要： | 通过对比轧制试验和材料显微组织分析，发现高强度船板表面裂纹所处部位有明显的氧化原点、氧化脱碳和晶粒长大特征，且不同的加热和轧制工艺会影响裂纹的扩展。高强度船板表面裂纹不是加热、轧制时新产生的，而是原连铸坯缺陷经加热、轧制演变而成。
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| 关 键 词： | 高强度船板 表面裂纹 连铸坯 |
| 文章编号： | 1672-3090（2007）06-0564-03 |
| 收稿时间： | 2007-04-26 |
Causes of surface crack on high strength ship plate |
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| Authors: | Qian Zhenxing Li Lixin Duan Dongming |
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| Abstract: | The causes of surface crack on high strength ship plate are studied by rolling testing and microstructure analysis. Different heating and rolling technology are found to have affected the extension of cracks, and clear oxidation origin, oxidation decarburization and grain growth characteristics are seen at the cracking part. It is concluded that the crack evolves from the disfigurement on the continuous casting billet in the process of heating and rolling. |
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| Keywords: | high strength ship plate surface crack continuous casting billet |
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