| 钢侧偏束电子束焊接纯铝/Q235异种金属接头试验 |
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| 引用本文： | 王廷,张秉刚,冯吉才,钟诗胜. 钢侧偏束电子束焊接纯铝/Q235异种金属接头试验[J]. 焊接学报, 2014, 35(6): 69-72 |
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| 作者姓名： | 王廷 张秉刚 冯吉才 钟诗胜 |
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| 作者单位： | 1.哈尔滨工业大学(威海)山东省特种焊接技术重点实验室, 威海 264209;哈尔滨工业大学先进焊接与国家重点实验室, 哈尔滨 150001 |
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| 基金项目： | 国家国际科技合作专项资助项目(2011DFR50760);哈尔滨工业大学科研创新基金资助项目(HIT.NSRIF.2014130) |
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| 摘 要： | 采用钢侧偏束电子束焊接方法对铝/钢异种金属接头进行了连接,对接头组织和相组成进行了分析,并对接头抗拉强度进行了了测试.结果表明,钢侧结合良好,焊缝组织均匀,铝侧熔合区存在过渡层,其内有金属间化合物层存在.适当的钢侧偏束量能够提高接头强度,在文中试验范围内,在偏束量为0.5 mm时获得了相对最高的抗拉强度69 MPa.金属间化合层的存在弱化了接头强度,断裂呈脆性特征.
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| 关 键 词： | 纯铝 Q235钢 电子束焊接 束偏量 显微组织 力学性能 |
| 收稿时间： | 2013-07-01 |
Experimental study of electron beam welded pure aluminum to Q235 steel joint with beam deflection |
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| WANG Ting,ZHANG Binggang,FENG Jicai and ZHONG Shisheng. Experimental study of electron beam welded pure aluminum to Q235 steel joint with beam deflection[J]. Transactions of The China Welding Institution, 2014, 35(6): 69-72 |
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| Authors: | WANG Ting ZHANG Binggang FENG Jicai ZHONG Shisheng |
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| Affiliation: | 1.Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China;State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China2.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China3.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Electron beam welding of pure aluminum to steel with beam deflection was carried out. The microstructure and phase constitution of the joint was examined by optical microscopy,scanning electron microscopy, EDS and XRD. The tensile strength of the joint was also tested. The results show that the alloying process and thermal distribution was improved. The interface between the weld and steel was well bonded with uniform microstructure. The fusion zone on aluminum side was characterized by a transition layer with inner intermetallic compounds. The tensile strength of the joint could be increased with appropriate beam deflection. In this paper, the highest tensile strength was obtained in a joint welded with beam deflection of 0.5 mm to steel side. The joint strength was weakened by the intermetallic compound layer. The fractured surface showed a brittle cleavage fracture mode. |
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| Keywords: | pure alminum Q235 steel electron beam welding beam deflection microstructure |
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