邵文杰,丁云龙,刘冰洋,庄志国,韩冰

• 1:辽宁科技大学机械工程与自动化学院
• 2:辽宁省复杂工件表面特种加工重点实验室

摘要(Abstract)：

采用真空扩散焊接技术对铜/铝异种材料进行焊接，利用扫描电镜(SEM)、能谱分析仪(EDS)、万能力学试验机、电阻率测试仪等对焊接接头界面的显微组织、物相成分和物理性能进行研究。结果表明：Cu/Al焊接接头界面金属间化合物的种类和厚度与焊接温度有关，界面处生成的物相有θ-Al_2Cu、η-AlCu、δ-Al_2Cu_3和γ-Al_4Cu_9;接头的抗剪切强度随焊接温度的升高呈先升高后降低的趋势，当焊接温度为530℃时，抗剪切强度最大，为16.5 MPa;接头断裂主要发生在θ相附近，部分发生于γ相和η相；接头的电阻率与界面金属间化合物层的物相、厚度和均匀性密切相关，且随焊接温度的升高而降低，当焊接温度为550℃时，接头的最低电阻率，为2.4×10~(-5)Ω·cm。

关键词(KeyWords)： 铜/铝异种焊接;真空扩散焊;显微组织;物相成分;电阻率

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51775258);; 辽宁省科技厅博士启动经费(2021-BS-241)

作者(Author): 邵文杰,丁云龙,刘冰洋,庄志国,韩冰

DOI: 10.13289/j.issn.1009-6264.2024-0252

参考文献(References)：

• [1] 彭胜，初铭强，张书彦，等.铝铜接头的扩散焊连接研究现状[J].金属世界，2020(2):4-7.PENG Sheng,REN Ming-qiang,ZHANG Shu-yan,et al.Research status of diffusion welding in Al-Cu joints[J].Metal World,2020(2):4-7.
• [2] 李晗嫣，陈文革，刘洁.热处理对Cu-Al复合界面显微组织结构与性能的影响[J].材料热处理学报，2017,38(7):63-70.LI Han-yan,CHEN Wen-ge,LIU Jie.Effect of heat treatment on microstructure and properties of Cu-Al composite interface[J].Transactions of Materials and Heat Treatment,2017,38(7):63-70.
• [3] 张满.铝/铜异种材料焊接的研究现状[J].热加工工艺，2009,38(9):116-119.ZHANG Man.Present status of research on welding technique for Al/Cu dissimilar materials[J].Hot Working Technology,2009,38(9):116-119.
• [4] 刘兰胜，王龙凤.铜铝异种金属焊接研究现状及展望[J].金属世界，2023(1):12-15.LIU Lan-sheng,WANG Long-feng.Research status and prospect of copper aluminum dissimilar metal welding[J].Metal World,2023(1):12-15.
• [5] 杨玲.我国九种矿产资源严重短缺[J].化工矿产地质，2008(2):102.YANG Ling.Nine of our country’s mineral resources are seriously lacking[J].Geology of Chemical Minerals,2008(2):102.
• [6] 黄伟军，龚先政，高峰，等.中国铜产品环境足迹评价和供应风险综合评估[J].中国有色金属学报，2023,33(5):1541-1553.HUANG Wei-jun,GONG Xian-zheng,GAO Feng,et al.Copper products environmental footprint assessment and comprehensive supply risk evaluation for China[J].The Chinese Journal of Nonferrous Metals,2023,33(5):1541-1553.
• [7] Huang M L,Kang N,Zhou Q,et al.Effect of Ni content on mechanical properties and corrosion behavior of Al/Sn-9Zn-xNi/Cu joints[J].Journal of Materials Science & Technology,2012,28(9):844-852.
• [8] Tang J X,Shi L,Wu C S,et al.Microstructure and mechanical properties of dissimilar double-side friction stir welds between medium-thick 6061-T6 aluminum and pure copper plates[J].Acta Metallurgica Sinica (English Letters),2022,35(12):2027-2046.
• [9] Zuo Y Y,Gong P,Ji S D,et al.Ultrasound-assisted friction stir transient liquid phase spot welded dissimilar copper-aluminum joint[J].Journal of Manufacturing Processes,2021,62:58-66.
• [10] Wang C,Ma L N,Ma X G,et al.Effect of annealing temperature on microstructure and tensile properties of copper/aluminum composite thin strip[J].Transactions of Nonferrous Metals Society of China,2023,33(3):701-713.
• [11] 徐文虎，杨瑾，肖明，等.铝/铜异种金属熔钎焊研究现状[J].上海工程技术大学学报，2021,35(3):215-228.XU Wen-hu,YANG Jin,XIAO Ming,et al.Research status of dissimilar welding-brazing of aluminum to copper[J].Journal of Shanghai University of Engineering Science,2021,35(3):215-228.
• [12] 胡建岗.T2紫铜A060铝激光焊组织和性能研究[D].太原：太原科技大学，2022.HU Jian-gang.Study on microstructure and properties of T2 copper/1060 aluminum laser welding[D].Taiyuan:Taiyuan University of Science and Technology,2022.
• [13] Kim H J,Lee J Y,Paik K W,et al.Effects of Cu/Al intermetallic compound (IMC) on copper wire and aluminum pad bondability[J].IEEE Transactions on Components and Packaging Technologies,2003,26(2):367-374.
• [14] 薛松柏，董健，吕晓春，等.Al/Cu管异种材料火焰钎焊连接[J].焊接，2003(12):23-25.XUE Song-bai,DONG Jian,Lü Xiao-chun,et al.Flame brazing for dissimilar materials of Al/Cu tube[J].Welding & Joining,2003(12):23-25.
• [15] Xiao Y,Ji H J,Li M Y,et al.Ultrasound-assisted brazing of Cu/Al dissimilar metals using a Zn-3Al filler metal[J].Materials & Design,2013,52:740-747.
• [16] Xia C Z,Li Y J,Puchkov U A,et al.Crack analysis near vacuum brazing interface of Cu/Al dissimilar materials using Al-Si brazing alloy[J].Materials Science and Technology,2009,25(3):383-387.
• [17] 李福山，徐荣正，王鹏飞，等.Al-Cu异种金属的电子束搭接焊接研究[J].特种铸造及有色合金，2019,39(5):556-560.LI Fu-shan,XU Rong-zheng,WANG Peng-fei,et al.Research on electron beam lap welding of Al/Cu dissimilar Metals[J].Special Casting & Nonferrous Alloys,2019,39(5):556-560.
• [18] 南水平，黄继华，陈树海，等.Al-Si-Cu合金粉末扩散钎焊Al/Cu接头组织及性能[J].焊接学报，2014,35(1):79-82.NAN Shui-ping,HUANG Ji-hua,CHEN Shu-hai,et al.Microstructure and properties of diffusion brazed aluminum/copper joint with Al-Si-Cu alloy powder[J].Transactions of the China Welding Institution,2014,35(1):79-82.
• [19] 佟得吉，刘杰，高雪云，等.Cu-Al电阻焊结合层的SEM和HREM研究[J].热加工工艺，2014,43(17):214-216.TONG De-ji,LIU Jie,GAO Xue-yun,et al.Study on SEM and HREM of bonding layer in Cu-Al resistance welding[J].Hot Working Technology,2014,43(17):214-216.
• [20] 李欢，周亢，张锦洲，等.工艺参数对Cu/Al大功率超声波焊接微观组织和力学性能的影响[J].焊接学报，2020,41(4):20-25.LI Huan,ZHOU Kang,ZHANG Jin-zhou,et al.Influence of process parameters on microstructure and mechanical properties in high power ultrasonic welding of Cu/Al[J].Transactions of the China Welding Institution,2020,41(4):20-25.
• [21] 邹军涛，高磊，谢庭芳，等.扩散连接制备Cu/Al双金属及其界面组织与剪切强度(英文)[J].稀有金属材料与工程，2020,49(12):4121-4128.ZOU Jun-tao,GAO Lei,XIE Ting-fang,et al.Interfacial microstructure and shear strength of Cu/Al bimetal fabricated by diffusion welding[J].Rare Metal Materials and Engineering,2020,49(12):4121-4128.
• [22] 傅成聪，郑钰，郭怡，等.超细晶Cu/Al异种材料搅拌摩擦焊组织与性能研究[J].铜业工程，2023(3):32-39.FU Cheng-cong,ZHENG Yu,GUO Yi,et al.Microstructure and mechanical properties of friction stir welding interface of ultrafine grained copper/aluminum dissimilar materials[J].Copper Engineering,2023(3):32-39.
• [23] 刘铁，张文金，陈启健.Cu-Al的搅拌摩擦焊工艺和性能研究[J].热加工工艺，2015,44(1):224-225.LIU Tie,ZHANG Wen-jin,CHEN Qi-jian.Study on welding process and property of Cu-Al friction stir welded joint[J].Hot Working Technology,2015,44(1):224-225.
• [24] Bamidele O E,Ojo O A.Numerical simulation study of temperature gradient transient liquid phase bonding with concentration-dependent diffusivity[J].Metallurgical and Materials Transactions A,2021,52:2261-2273.
• [25] 李亚江，吴会强，陈茂爱，等.Cu/Al真空扩散焊接接头显微组织分析[J].中国有色金属学报，2001(3):424-427.LI Ya-jiang,WU Hui-qiang,CHEN Mao-ai,et al.Microstructure analyses in vacuum diffusion welded joint of copper and aluminum[J].The Chinese Journal of Nonferrous Metals,2001(3):424-427.
• [26] 全国焊接标准化技术委员会.焊接接头拉伸试验方法：GB/T 2651—2008[S].北京：中国标准出版社，2008.
• [27] Xiao Y,Besharatloo H,Gan B,et al.Combinatorial investigation of Al-Cu intermetallics using small-scale mechanical testing[J].Journal of Alloys and Compounds,2020,822:153536.
• [28] Chen J,Yang J,Zhang Y,et al.Effect of substrates on the formation of Kirkendall voids in Sn/Cu joints[J].Welding in the World,2019,63:751-757.
• [29] Bedjaoui W,Boumerzoug Z,Delaunois F.Solid-state diffusion welding of commercial aluminum alloy with pure copper:welding of aluminum alloy to copper[J].International Journal of Automotive and Mechanical Engineering,2022,19(2):9734-9746.
• [30] 王艳艳，王聪兴，刘平，等.Cu/Al复合材料热电性能的研究[J].功能材料，2018,49(1):1151-1155.WANG Yan-yan,WANG Cong-xing,LIU Ping,et al.Study on the thermoelectric properties of copper/aluminum composite[J].Journal of Functional Materials,2018,49(1):1151-1155.

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