| 20g焊接试板冷弯开裂机理研究 |
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| 引用本文： | 张罡,于春辉.20g焊接试板冷弯开裂机理研究[J].沈阳理工大学学报,1998,17(4):50-57. |
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| 作者姓名： | 张罡 于春辉 |
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| 作者单位： | [1]沈阳工业学院材料工程系 [2]沈阳市锅炉压力容器检验研究所 |
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| 摘 要： | 选用２０ｇ焊接试板，在不同的冷弯角下进行冷弯试验；利用网格划分方法，测得焊接接头试样冷弯后试样表面拉伸塑性应变，从而建立冷弯角与塑性应变的数学模型；并结合焊接接头各区域的冲击韧性值，对冷弯开裂的原因进行了分析。
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| 关 键 词： | 焊接接头 冷弯 塑性应变 焊接试板 压力容器 |
Study on the Cold Bending Cracking Mechanism for Welded Joint of 20 g |
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| Zhang Gang,Zhang Xueping,Mo Chunli.Study on the Cold Bending Cracking Mechanism for Welded Joint of 20 g[J].Transactions of Shenyang Ligong University,1998,17(4):50-57. |
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| Authors: | Zhang Gang Zhang Xueping Mo Chunli |
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| Abstract: | Structure steel 20 g is used as a welded joint specimen to perform the cold bending test in different angles.By means of grids method,the surface tension plastic strains are measured after bending.The mathematic models of bending angles versus plastic strains have been set up.In addition,the impact tough values in different zones of welded joint are analysed to explain the reasons of cracking. |
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| Keywords: | welded joint cold bending plastic strain |
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