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| Cu-P-RE系耐候钢连铸坯纵裂纹及热轧板冷弯不合格成因分析 | |
| 引用本文： | 王龙妹,岳丽杰,戚国平,陆斌,徐军.Cu-P-RE系耐候钢连铸坯纵裂纹及热轧板冷弯不合格成因分析[J].中国稀土学报,2005,23(2):219-223. |
| 作者姓名： | 王龙妹 岳丽杰 戚国平 陆斌 徐军 |
| 作者单位： | 1. 钢铁研究总院冶金工艺所,北京,100081 2. 东北大学机械工程与自动化学院,辽宁,沈阳,110004 3. 宝钢集团上钢一厂技术中心,上海,200431 |
| 基金项目： | 国家"十五"科技攻关项目(2002BA315A 5) |
| 摘 要： | 采用金相、扫描电镜对低碳Cu—P系稀土耐候钢连铸坯表面角部纵裂纹及热轧板冷弯断裂面进行了宏观观察;采用能谱及X射线波谱对角部纵裂纹开裂面上的夹杂物和热轧板带断裂面上的夹杂物进行了微区成分分析;通过Gleeble-1500试验机对铸坯试样进行了高温力学性能测试,同时分析测试了连铸结晶器宽、窄面上的热流,找出了低碳Cu—P稀土耐候钢连铸坯表面纵裂纹及热轧板带冷弯断裂的主要成因。 |
| 关 键 词： | Cu-P-RE耐候钢 表面纵裂纹 夹杂物 成因分析 稀土 |
| 文章编号： | 1000-4343(2005)02-0219-05 |
Analysis of Surface Longitudinal Crack of Slab and Crack of Cold Bending for Cu-P-RE Weathering Steels |
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| Wang Longmei,Yue Lijie,Qi Guoping,Lu Bin,Xu Jun.Analysis of Surface Longitudinal Crack of Slab and Crack of Cold Bending for Cu-P-RE Weathering Steels[J].Journal of the Chinese Rare Earth Society,2005,23(2):219-223. | |
| Authors: | Wang Longmei Yue Lijie Qi Guoping Lu Bin Xu Jun |
| Institution: | Wang Longmei~ |
| Abstract: | The surface morphology of longitudinal crack at corner of slab and the crack morphology of cold bending for Cu-P-RE weathering steels were analyzed by metalographic examination and SEM. The feature of crack and the composition of inclusions on the surface of crack were detected by EMPA, and EDAX. High temperature mechanical properties test were carried and with Gleeble-1500. The heat flow both on wide side and narrow side of the slab were tested. The main causes of the surface longitudinal crack of slab and the crack of cold bending for Cu-P-RE weathering steels found out. |
| Keywords: | Cu-P-RE weathering steel surface longitudinal crack inclusion cause analysis rare earths |
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