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| DB685钢板表面裂纹缺陷原因分析 | |
| 引用本文： | 饶江平,杨志婷,张友登,李小云. DB685钢板表面裂纹缺陷原因分析[J]. 武钢技术, 2007, 45(4): 31-33 |
| 作者姓名： | 饶江平 杨志婷 张友登 李小云 |
| 作者单位： | 1. 武汉科技大学,武汉,430081;武钢三炼钢厂,武汉,430083 2. 武钢研究院,武汉,430080 3. 武钢三炼钢厂,武汉,430083 |
| 摘 要： | 用金相显微镜和扫描电镜分析方法,对DB685钢板表面裂纹进行分析。结果表明,钢板表面裂纹的形成与稀土氧化物有关。由于钢中稀土氧化物偏析于原奥氏体晶界上,弱化了晶界,造成钢板在轧制过程中产生裂纹。 |
| 关 键 词： | DB685钢板 裂纹 稀土氧化物 |
| 文章编号： | 1008-4371(2007)04-0031-03 |
| 修稿时间： | 2007-03-27 |
Analysis on cause to surface cracking of steel sheet DB685 |
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| RAO Jiang-ping,YANG Zhi-ting,ZHANG You-deng,LI Xiao-yun. Analysis on cause to surface cracking of steel sheet DB685[J]. Wisco Technology, 2007, 45(4): 31-33 | |
| Authors: | RAO Jiang-ping YANG Zhi-ting ZHANG You-deng LI Xiao-yun |
| Abstract: | The surface cracks on steel sheet DB685 was analyzed by metallographic microscope and scanning electron microscope.The results show that the surface cracks on the steel sheets are caused primarily by insoluble rareearth oxides,which segregate at the original austenite grain boundary leading to weakening of grain boundary and occurrence of the surface crack in rolling process. |
| Keywords: | DB685 steel plate surface cracks rare-earth oxides |
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