| 5554铝合金异种焊料焊接的显微组织及力学性能 |
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| 引用本文： | 汪洪峰,左敦稳,王珉,缪宏.5554铝合金异种焊料焊接的显微组织及力学性能[J].吉林大学学报(工学版),2011(4):974-977. |
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| 作者姓名： | 汪洪峰 左敦稳 王珉 缪宏 |
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| 作者单位： | 南京航空航天大学江苏省精密与微细制造技术重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50675104); 江苏省研究生创新基金项目(CX09B_073Z); 江苏省精密与微细制造技术重点实验室开放基金项目(JSPM200705) |
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| 摘 要： | 在5554铝合金钨极氩弧焊焊接工艺基础上,利用万能拉伸试验机、光学显微镜和显微硬度测试仪等仪器,比较了5554铝合金异种焊料焊接接头的微观组织结构和力学性能。结果表明,随着焊料含镁量的增加,焊接接头的力学性能都得到了不同程度的降低,而且随着镁含量的增加,焊接热裂纹越明显。三种焊料焊接的接头显微硬度均比母材低,通过试验验证,得出焊后保温是导致这一结果的主要原因。
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| 关 键 词： | 金属材料 5554铝合金 钨极氩弧焊 焊接力学性能 微观组织 |
Analysis of microstructure and mechanical properties of aluminum alloy 5554 welded joints with dissimilar solders |
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| WANG Hong-feng,ZUO Dun-wen,WANG Min,MIAO Hong.Analysis of microstructure and mechanical properties of aluminum alloy 5554 welded joints with dissimilar solders[J].Journal of Jilin University:Eng and Technol Ed,2011(4):974-977. |
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| Authors: | WANG Hong-feng ZUO Dun-wen WANG Min MIAO Hong |
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| Affiliation: | WANG Hong-feng,ZUO Dun-wen,WANG Min,MIAO Hong(Jiangsu Key Laboratory of Precision and Micro-manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The tungsten inert gas arc welding(TIG) technology was applied on aluminum alloy 5554.The microstructure and mechanical properties of welded joints by different solders were compared using the universal tensile testing machine,the optical microscopy and the micro-hardness tester.Results show that with the increasing content of magnesium in the solder,mechanical properties of welded joints became weaker,and more heat cracks appeared in the solder.The micro-hardness in welded joints with three kinds of solder... |
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| Keywords: | metallic material aluminum alloy 5554 tungsten inert gas are welding(TIG) welding mechanical properties microstructure |
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