| Domex 700MC钢药芯焊丝CO2气体保护焊焊接接头显微组织分析 |
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| 引用本文： | 章友谊,屈金山,李娟. Domex 700MC钢药芯焊丝CO2气体保护焊焊接接头显微组织分析[J]. 热加工工艺, 2006, 35(23): 27-29 |
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| 作者姓名： | 章友谊 屈金山 李娟 |
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| 作者单位： | 西华大学,材料科学与工程学院,四川,成都,610039 |
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| 摘 要： | 针对Domex700MC低合金高强钢，采用药芯焊丝CO2气体保护电弧焊获得焊接接头试件。对焊接接头的焊缝、熔合区和热影响区金属的显微组织进行了分析；并测试了其显微硬度；讨论了焊缝产生裂纹的主要原因。
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| 关 键 词： | Domex 700MC钢 药芯焊丝 CO2气体保护焊 显微组织 冷裂纹 |
| 文章编号： | 1001-3814(2006)23-0027-03 |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006-09-18 |
Analysis on Microstructure of Weld Joints of Domex 700 MC Steel by CO2 Arc Welding with Flux-cored Wire |
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| ZHANG You-yi,QU Jin-shan,LI Juan. Analysis on Microstructure of Weld Joints of Domex 700 MC Steel by CO2 Arc Welding with Flux-cored Wire[J]. Hot Working Technology, 2006, 35(23): 27-29 |
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| Authors: | ZHANG You-yi QU Jin-shan LI Juan |
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| Affiliation: | School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan 610039,Chitin |
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| Abstract: | The Domex 700MC steel was welded by the CO2 arc welding process with flux-cored wire. The microstructure of the weld line ,the fusion area and the heat-affected zone metal of the weld joints were analyzed,the micro-hardness was measured,and the reason for forming crack was discussed.The results show that the CO2 arc welding process with the flux-cored wire is suitable for Domex 700MC steel,the microstructure of weld joints obtained is better, and the weld microhardness can satisfy the designed specifications. |
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| Keywords: | Domex 700MC steel flux-cored wire CO2 arc welding microstructure cold crack |
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