| Q215���ܵĶ���ԭ����� |
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| 引用本文： | 冯岩青,王晓丽.Q215���ܵĶ���ԭ�����[J].物理测试,2007,25(6):52-0. |
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| 作者姓名： | 冯岩青 王晓丽 |
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| 作者单位： | 1.?????????????????????????????? 100083??2.?????????????????????? ??? 014010??3. ???????????????????????? 014010 |
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| 摘 要： | 文章对断裂的Q215焊管进行宏观、金相及断口分析，结果表明该焊管在焊接时焊接温度过高，焊接持续时间较长，致使晶粒粗大产生过热，出现脆断。
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| 关 键 词： | ???? ???? ???? |
| 文章编号： | 1001-0777（2007）06-0052-02 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2007-08-21 |
Failure Analysis of Q215 Welded Steel Pipe |
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| FENG Yan-qing,WANG Xiao-li.Failure Analysis of Q215 Welded Steel Pipe[J].Physics Examination and Testing,2007,25(6):52-0. |
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| Authors: | FENG Yan-qing WANG Xiao-li |
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| Affiliation: | 1.University of Science and Technology Beijing??Beijing 100083 ,China;2.Baogang Iron and Steel Co Ltd, Baotou 014010,Inner Mongolia, China; 3.Baotou Iron Steel Vocational Technical College, Baotou 014010,Inner Mongolia,China |
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| Abstract: | Analysis on metallography,macro graphy and fracture appearance were carried out on broken Q215 wel ded steel pipe. The results show that the higher temperature and the longer time during welding lead to grain grow ing and failure finally. |
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| Keywords: | welded steel pipe grain fracture |
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