| 热轧钢板拉伸断口分层缺陷的检验和分析 |
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| 引用本文： | 李吉东,黄楠,许庆太,孙中强.热轧钢板拉伸断口分层缺陷的检验和分析[J].物理测试,2011,29(5):49-52. |
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| 作者姓名： | 李吉东 黄楠 许庆太 孙中强 |
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| 作者单位： | 1. ?????????????о????????? ???? 110004 ; 2. ???????????????????????????????????????? ??? 014000 |
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| 摘 要： | 厚度为20mm的Q235B热轧钢板，在拉伸试样上出现断口分层缺陷。通过化学成分、力学性能、低倍、金相、扫描电镜及能谱等检验手段，对断口分层缺陷进行了检验和分析。结果表明，钢板中心偏析、夹杂、带状组织是造成钢板拉伸试样断口分层缺陷的主要原因。
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| 关 键 词： | 热轧钢板 断口分层 中心偏析 夹杂物 带状组织 |
Inspection and Analysis of Delamination in Tensile Fracture of Hot Rolled Plate |
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| LI Ji-dong,HUANG Nan,XU Qing-tai,SUN Zhong-qiangCo.,Ltd.,Baotou ,Inner Mongolia,China.Inspection and Analysis of Delamination in Tensile Fracture of Hot Rolled Plate[J].Physics Examination and Testing,2011,29(5):49-52. |
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| Authors: | LI Ji-dong HUANG Nan XU Qing-tai SUN Zhong-qiangCo Ltd Baotou Inner Mongolia China |
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| Affiliation: | 1. Institute of Metallurgical Technology, Northeasten University Shenyang,110004, Liaoning, China ; 2. CSP of Baotou Iron and SteelGroupCo., Ltd., Baotou 014000, Inner Mongolia, China |
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| Abstract: | The layered fracture defects appeared on tensile samples of 20 mm thickness of Q235B hot rolled steel plate,which were checked and analyzed by tests with chemical composition,mechanical properties,macroscopic,metallography,SEM and EDS.The results indicated that the central segregation,inclusions,zonal structures are the main reasons which cause layered fracture defects in steel plate. |
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| Keywords: | hot rolled steel plate layered fracture center segregation inclusions zonal structure |
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