| Interfacial structure and joint strengthening in arc brazed galvanized steels with copper based filler |
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| 作者姓名： | 李瑞峰 于治水 祁凯 |
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| 作者单位： | Provincial Key Laboratory of Advanced Welding Technology Jiangsu University of Science and Technology Zhenjiang 212003 China，College of Materials Engineering Shanghai Univers ity of Engineering Science Shanghai 200336 China，Provincial Key Laboratory of Advanced Welding Technology Jiangsu University of Science and Technology Zhenjiang 212003 China |
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| 摘 要： | 1 Introduction Arc brazing is a brazing method that the specimens are heated by arc1]. It is the generic terms of GMA brazing and GTA brazing2], and has both the characteristics of brazing and welding. Compared with traditional arc fusion welding, the s…
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| 关 键 词： | 镀锌钢 CuSi3 TIG MIG 电弧钎焊 接头强度 显微结构 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-07-11 |
Interfacial structure and joint strengthening in arc brazed galvanized steels with copper based filler |
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| LI Rui-feng,YU Zhi-shui,QI Kai.Interfacial structure and joint strengthening in arc brazed galvanized steels with copper based filler[J].Transactions of Nonferrous Metals Society of China,2006,16(2):397-401. |
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| Authors: | LI Rui-feng YU Zhi-shui QI Kai |
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| Affiliation: | 1. Provincial Key Laboratory of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China;2. College of Materials Engineering, Shanghai University of Engineering Science, Shanghai 200336, China;1. Institute for Advanced Studies-IEAV/DCTA, Av. Cel Jose Alberto Albano do Amarante, 1-Putim, 12228-001 São Jose dos Campos, SP, Brazil;2. Instituto Nacional de Metrologia, Qualidade e Tecnologia, Av. Nossa Sra. das Graças, 50, 25250-020 Duque de Caxias, RJ, Brazil;3. Thermo Fisher Scientific, 5225 Verona Road, Madison, WI 53711, USA;4. Institute for Nuclear and Energy Research- IPEN, Av. Prof lineu Prestes, 2242- Cidade Universitaria, 05508-000 SP, Brazil;1. State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China;2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;3. Shenhua Trading Group Limited, Qinhuangdao 066001, China;4. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China;5. School of Engineering, Liverpool John Moores University, Liverpool L3 3AF, UK |
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| Abstract: | Galvanized steel sheets were joined by tungsten inert gas(TIG) and metal inert gas(MIG) brazing process using copper based filler. The results show that the joint zone hardness is higher than that of the base material or copper filler from the microhardness tests of TIG brazing specimens, and the fracture spot is at the base materials zone from the tensile tests of MIG brazing specimens. Examination using energy dispersive X-ray analysis reveals the presence of intermetallic compound Fe5Si3(Cu) in the joint. The dispersal of fine Fe5Si3(Cu) particles is the main strengthening factor for the joint. The Fe5Si3(Cu) particles are determined to arise from three sources, namely, spot micro-melt, whisker-like fragmentation and dissolve-separation actions. |
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| Keywords: | galvanized steels CuSi3 TIG MIG arc brazing strengthening mechanism interfacial structure |
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