| Q345B宽带钢边缘裂纹分析 |
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| 引用本文： | 郝少锋,梁辉,季春生,董昌兴.Q345B宽带钢边缘裂纹分析[J].理化检验(物理分册),2008,44(12):719-720. |
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| 作者姓名： | 郝少锋 梁辉 季春生 董昌兴 |
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| 作者单位： | 山东莱芜钢铁股份有限公司,莱芜,271104 |
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| 摘 要： | 采用化学成分分析、力学性能测试、显微组织观察和夹杂物检验等方法对有边缘裂纹的Q345B宽带钢进行分析。发现是由于铸坯存在FeS，MnS等夹杂物，轧制中这些夹杂物及过高锰含量导致裂纹的进一步扩展，最终形成边缘裂纹。
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| 关 键 词： | 宽带钢 Q345B钢 边缘裂纹 |
EDGE CRACK ANALYSIS OF Q345B WIDE STRIP STEEL |
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| HAO Shao-feng,LIANG Hui,JI Chun-sheng,DONG Chang-xing.EDGE CRACK ANALYSIS OF Q345B WIDE STRIP STEEL[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2008,44(12):719-720. |
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| Authors: | HAO Shao-feng LIANG Hui JI Chun-sheng DONG Chang-xing |
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| Affiliation: | (Laiwu Iron and Steel Co. Ltd , Laiwu 271104, China) |
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| Abstract: | The edge crack on Q345B wide strip steel was analyzed by means of chemical composition analysis, mechanical property testing, micro metallographical examination. The results showed that the cast steel existed original flaw while rolling. Great amount metallic inclusion and overtop manganese contents caused the flaw further expand, finally the edge crack formed. |
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| Keywords: | wide strip steel Q345B steel edge crack |
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