| Domex700MC低合金高强度钢焊接接头显微组织分析 |
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| 引用本文： | 章友谊,屈金山,杨跃. Domex700MC低合金高强度钢焊接接头显微组织分析[J]. 热加工工艺, 2007, 36(23): 30-32 |
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| 作者姓名： | 章友谊 屈金山 杨跃 |
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| 作者单位： | 1. 四川工程职业技术学院,四川,德阳,618000
2. 西华大学材料科学与工程学院,四川,成都,610039 |
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| 摘 要： | 分别采用药芯焊丝CO2气体保护焊和实心焊丝CO2气体保护焊对Domex700MC低合金高强度钢进行焊接。并对获得的焊接接头焊缝、熔合区和热影响区金属的显微组织进行了分析。结果表明，Domex700MC低合金高强度钢焊接性良好，用这两种焊接工艺均能获得良好的焊接接头，但前者获得的焊接接头焊缝金属显微组织分布更均匀，针状铁素体数量更多。
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| 关 键 词： | Domex700MC钢 药芯焊丝 实心焊丝 显微组织 针状铁素体 |
| 文章编号： | 1001-3814（2007）01-0030-03 |
| 收稿时间： | 2007-09-05 |
| 修稿时间： | 2007-09-05 |
Analysis on Microstructure of Welded Joints of Domex700MC HSLA Steel |
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| ZHANG You-yi,QU Jin-shan,YANG Yue. Analysis on Microstructure of Welded Joints of Domex700MC HSLA Steel[J]. Hot Working Technology, 2007, 36(23): 30-32 |
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| Authors: | ZHANG You-yi QU Jin-shan YANG Yue |
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| Abstract: | The Domex700MC HSLA steel was welded by the CO2 arc welding process with flux-cored wire and the CO2 arc welding process with solid wire. The microstructure of weld line, the fusion area and the heat-affected zone metal of the both welded joints were analyzed. The results show that Domex700MC steel has good weldability. The good quality joints can be obtained by the both welding process. But the microstructure distribution of the joints of the former is better than that of the latter, and the number of acicular ferrite of the former more than the latter. |
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| Keywords: | Domex700MC steel flux-cored wire solid wire microstructure acicular ferrite |
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