| Ti-6Al-4V合金的动态控制等离子焊接(英文) |
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| 引用本文： | 陈建春,潘春旭.Ti-6Al-4V合金的动态控制等离子焊接(英文)[J].中国有色金属学会会刊,2011(7):1506-1512. |
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| 作者姓名： | 陈建春 潘春旭 |
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| 作者单位： | 武汉大学物理科学与技术学院电子显微镜中心; |
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| 基金项目： | Project(2009CB939705) supported by the National Basic Research Program of China; Project(200233) supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China (FANEDD) |
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| 摘 要： | 介绍了一种新的动态控制等离子焊接工艺。该工艺能够在保持完全焊透的情况下减少对被焊材料的热输入。利用该工艺对Ti-6Al-4V合金实施平板对焊。利用光学显微镜、扫描电镜(SEM)和显微硬度计对焊接接头的显微组织、断口形貌和显微硬度进行表征。与钨极电弧焊接和常规的等离子焊接相比较,使用本工艺提高了焊接质量,其原因在于:1)由于热输入的减少,焊缝中先析出的β相晶粒大幅度减少,从而使马氏体的形成得到抑制;2)焊接接头具有更好的韧性和更高的硬度。
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| 关 键 词： | 动态控制等离子焊接 Ti合金焊接 显微结构 断口 显微硬度 |
Welding of Ti-6Al-4V alloy using dynamically controlled plasma arc welding process |
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| CHEN Jian-chun,PAN Chun-xu Center for Electron Microscopy,School of Physics , Technology,Wuhan University,Wuhan ,China.Welding of Ti-6Al-4V alloy using dynamically controlled plasma arc welding process[J].Transactions of Nonferrous Metals Society of China,2011(7):1506-1512. |
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| Authors: | CHEN Jian-chun PAN Chun-xu Center for Electron Microscopy School of Physics Technology Wuhan University Wuhan China |
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| Affiliation: | CHEN Jian-chun,PAN Chun-xu Center for Electron Microscopy,School of Physics and Technology,Wuhan University,Wuhan 430072,China |
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| Abstract: | A novel dynamically controlled plasma arc welding process was introduced,which is able tominimize heat input into the workpiece materials while maintaining desired full penetration,and it was used to weld Ti-6Al-4V alloy sheets.The microstructures,facture surfaces and microhardness of the welded joints were characterized by using optical microscope,scanning electron microscope (SEM) and Vickers microhardness tester.Comparing with welds such as gas tungsten arc and conventional plasma arc processes,the exper... |
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| Keywords: | dynamically controlled plasma arc welding Ti alloy welding microstructure fracture microhardness |
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