李家豪,周惠焱,陈宜,刘强,黄永德

• 1:南昌航空大学航空制造工程学院

摘要(Abstract)：

采用成分为Al-7Si-20Cu-3Mg-3Zn-1Ni-1Ga的自制中间层，对5A06铝合金棒进行非真空瞬间液相扩散连接。借助扫描电镜、X射线衍射、电子探针和万能拉伸机等对不同焊接工艺下的接头微观组织形貌与力学性能进行研究，建立微观组织与断口形貌之间的联系，并讨论不同焊接工艺参数对接头连接过程的影响。结果表明，在焊接温度为550℃,保温时间为20 min时，接头的力学性能最佳，平均抗拉强度达到201 MPa,约为母材强度的72%。随着焊接温度的升高，接头会因过高的焊接温度而氧化，同时在焊接压力的作用下，接头因软化而产生裂纹；随着保温时间的增加，焊缝中心形成少量条块状Al-Mg-Cu三元共晶相及少量SiO_2,部分SiO_2之间发生偏聚导致难以焊合，进而在焊缝中产生裂纹，严重影响接头性能。

关键词(KeyWords)： 5A06铝合金;瞬间液相扩散连接;焊接工艺;断口形貌

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52065048)

作者(Author): 李家豪,周惠焱,陈宜,刘强,黄永德

DOI: 10.13289/j.issn.1009-6264.2023-0432

参考文献(References)：

• [1] Zhang R F,Li J F,Li Q,et al.Analysing the degree of sensitisation in 5xxx series aluminium alloys using artificial neural networks:A tool for alloy design[J].Corrosion Science,2019,150:268-278.
• [2] 李志强，王克鲁，董洪波，等.时效处理对5A06铝合金压铸件组织和力学性能的影响[J].材料热处理学报，2021,42(3):53-59.LI Zhi-qiang,WANG Ke-lu,DONG Hong-bo,et al.Effect of aging treatment on microstructure and mechanical properties of 5A06 aluminum alloy castings[J].Transactions of Materials and Heat Treatment,2021,42(3):53-59.
• [3] Yang Y,Li Y,Bi J,et al.Microstructure and mechanical properties of 2195/5A06 dissimilar joints made by resistance spot welding[J].Materials Characterization,2022,191:112147.
• [4] 张明鲲，杨敏，王宇，等.热处理对高速列车用7005铝合金焊接接头应力腐蚀敏感性的影响[J].金属热处理，2023,48(8):166-171.ZHANG Ming-kun,YANG Min,WANG Yu,et al.Effect of heat treatment on stress corrosion sensitivity of 7005 aluminum alloy welded joint for high-speed train[J].Heat Treatment of Metals,2023,48(8):166-171.
• [5] Duan T G,Peng W S,Ding K K,et al.Long-term localized corrosion behaviors of 5A06 aluminum alloys exposed in the natural deep-sea environment of South China Sea[J].Journal of Materials Research and Technology,2022,20:4597-4607.
• [6] Yao X Q,Wen L,Yu Z G,et al.Study on corrosion behavior and mechanism of 5A06 aluminum alloy in N2O4 medium[J].Journal of Alloys and Compounds,2023,931:167544.
• [7] Yang X Y,Chen H,Li M V,et al.Porosity suppressing and grain refining of narrow-gap rotating laser-MIG hybrid welding of 5A06 aluminum alloy[J].Journal of Manufacturing Processes,2021,68:1100-1113.
• [8] Tan Z J,Pang B,Oliveira J P,et al.Effect of S-curve laser power for power distribution control on laser oscillating welding of 5A06 aluminum alloy[J].Optics & Laser Technology,2022,68:107909.
• [9] 陈莉，许恒庭，沈燕萍.铝合金管焊接裂纹分析[J].航天制造技术，2014(6):50-53.CHEN Li,XU Heng-ting,SHEN Yan-ping,et al.Analysis of 5A06 aluminum alloy pipe welding joint crack[J].Aeronautical Manufacturing Technology,2014(6):50-53.
• [10] 杨入稳.铝合金管全位置焊接的操作要领及焊接技巧[J].装备制造技术，2020,308(8):236-238.YANG Ru-wen.Operation essentials and welding skills of all-position welding of aluminum alloy tube[J].Equipment Manufacturing Technology,2020,308(8):236-238.
• [11] 郑杰，侯文琦，柴廷玺，等.一种用于全位置焊接的焊接工装总成设计[J].现代制造技术与装备，2023,59(7):185-187.ZHENG Jie,HOU Wen-qi,CHAI Ting-xi,et al.The invention relates to a welding tool assembly design for all-position welding[J].Modern Manufacturing Technology and Equipment,2023,59(7):185-187.
• [12] 陈钢，唐德文，冯文明.基于PLC的全位置TIG焊机控制系统设计[J].现代机械，2023(1):78-81.CHEN Gang,TANG De-wen,FENG Wen-ming,et al.Design of system of all-position TIG welding machine based on PLC[J].Modern Machinery,2023(1):78-81.
• [13] 杨建，赵艳西，赵龙社.5A06铝合金管对接焊接技术[J].焊接技术，2023,52(3):61-64.YANG Jian,ZHAO Yan-xi,ZHAO Long-she.Butt welding technology of 5A06 aluminum alloy pipe[J].Welding Technology,2023,52(3):61-64.
• [14] 王春武，谢垚，李军义，等.铸造铍铝合金的氩弧焊技术[J].焊接技术，2023,52(7):49-52.WANG Chun-wu,XIE Yao,LI Jun-yi.Argon arc welding technology of cast beryllium aluminum alloy[J].Welding Technology,2023,52(7):49-52.
• [15] Kwak Y,Kang T,Lee S H,et al.Effects of laser and tungsten arc welding processes on the thermal softening and mechanical properties of Almag6 aluminum alloy[J].International Journal of Precision Engineering and Manufacturing,2023,24(4):531-536.
• [16] 蒙丹阳，王惠苗，丁吉坤，等.摆动焊接对异种热处理状态2219铝合金焊接接头性能的影响[J].宇航材料工艺，2021,51(2):62-67.MENG Dan-yang,WANG Hui-miao,DING Ji-kun,et al.Effect of weaving welding on properties of dissimilar heat treated 2219 aluminum alloy welded joint[J].Aerospace Materials & Technology,2021,51(2):62-67.
• [17] 甘翊，黄本生，陈劲松，等.保温时间对TM52/Q235瞬时液相扩散焊接接头组织和性能的影响[J].材料热处理学报，2023,44(4):205-214.GAN Yi,HUANG Ben-sheng,CHEN Jin-song,et al.Effect of holding time on microstructure and properties of TM52/Q235 transient liquid phase diffusion welded joint[J].Transactions of Materials and Heat Treatment,2023,44(4):205-214.
• [18] Tazikeh H,Mirsalehi S E,Shamsipur A,et al.Relationship of isothermal solidification completion and precipitate formation with mechanical properties of Inconel 939 joints vacuum TLP bonded by an amorphous Ni-Cr-Fe-Si-B filler alloy[J].Journal of Materials Research and Technology,2022,18:4762-4774.
• [19] Ghahferokhi A I,Kasiri-Asgarani M,Amini K,et al.Role of interlayer composition in microstructure and mechanical properties during TLP bonding of GTD-111/IN-718 superalloys[J].Transactions of Nonferrous Metals Society of China,2022,32(3):908-926.
• [20] Park H J,Park D Y.Quantification of intermetallic phases in transient liquid phase-bonded Inconel617/MBF30 via image processing[J].Materials Characterization,2023,199:112808.
• [21] 李菊，侯金保，张胜.钎焊循环对IC10合金TLP扩散焊接头高温持久性能影响[J].材料热处理学报，2016,37(1):195-199.LI Ju,HOU Jin-bao,ZHANG Sheng.Effect of braze on creep strength at high temperature of TLP diffusion bonding joint for IC10 alloy[J].Transactions of Materials and Heat Treatment,2016,37(1):195-199.
• [22] Esmaeili H,Mirsalehi S E,Farzadi A,et al.Vacuum TLP bonding of Inconel 617 superalloy using Ni-Cr-Si-Fe-B filler metal:Metallurgical structure and mechanical properties[J].Vacuum,2018,152:305-311.
• [23] Amiri D,Sajjadi S A,Kamyabi-Gol A.Pre-and post-TLP bond solution treatments:Effects on the microstructure and mechanical properties of GTD-111 superalloy[J].Journal of Manufacturing Processes,2020,57:36-47.
• [24] 陈劲松，黄本生，张雷，等.焊接温度对TM52/304瞬间液相扩散焊接头性能的影响[J].材料科学与工程学报，2023,41(1):107-113.CHEN Jin-song,HUANG Ben-sheng,ZHANG Lei,et al.Welding temperature on properties of TM52/304 transient liquid phase diffusion welding joint[J].Journal of Materials Science and Engineering,2023,41(1):107-113.
• [25] 刘罗林，黄本生，李天宁，等.铝锂合金瞬间液相扩散连接接头的性能[J].材料热处理学报，2023,44(1):172-180.LIU Luo-lin,HUANG Ben-sheng,LI Tian-ning,et al.Properties of transient liquid phase diffusion bonding joint of Al-Li alloy[J].Transactions of Materials and Heat Treatment,2023,44(1):172-180.
• [26] Guo W B,Leng X S,Luan T M,et al.Ultrasonic-promoted rapid TLP bonding of fine-grained 7034 high strength aluminum alloys[J].Ultrasonics Sonochemistry,2017,36:354-361.
• [27] 任欣，王浩军，李红萍，等.Cu、Mg含量对Al-Cu-Mg-Fe-Ni铝合金组织性能的影响[J].材料热处理学报，2015,36(10):53-58.REN Xin,WANG Hao-jun,LI Hong-ping,et al.Effect of Cu and Mg content on microstructure and properties of Al-Cu-Mg-Fe-Ni alloys[J].Transactions of Materials and Heat Treatment,2015,36(10):53-58.
• [28] 余文涛，郝启堂，李新雷，等.Mg元素含量对Al-Cu-Mn-Mg合金过烧行为的影响[J].材料热处理学报，2022,43(11):49-56.YU Wen-tao,HAO Qi-tang,LI Xin-lei,et al.Effect of Mg content on over-burning behavior of Al-Cu-Mn-Mg alloy[J].Transactions of Materials and Heat Treatment,2022,43(11):49-56.
• [29] 俞伟元，陈学定，路文江，等.铝钎焊接头中Cu元素的扩散行为研究[J].材料科学与工艺，2007(3):383-386.YU Wei-yuan,CHEN Xue-ding,LU Wen-jiang,et al.Diffusion behavior of Cu in pure Al substrate[J].Materials Science and Technology,2007(3):383-386.
• [30] 张晗，郝启堂，李新雷，等.热处理工艺对Al-Cu-Mn-Mg合金微观组织与力学性能的影响[J].材料热处理学报，2023,44(3):58-67.ZHANG Han,HAO Qi-tang,LI Xin-lei,et al.Effect of heat treatment on microstructure and mechanical properties of Al-Cu-Mn-Mg alloy[J].Transactions of Materials and Heat Treatment,2023,44(3):58-67.
• [31] Zhang D K,Wei Z B,Wang K H,et al.Brazing of Al2O3-6061 aluminum alloy based on femtosecond laser surface groove structure[J].Ceramics International,2022,48(24):36953-36960.
• [32] Zhang Y D,Huang H,Zhang K,et al.Crystallization of MgAl2O4 and its effect on strengthening-toughening behavior in TiAlN/MgAl2O4 nanomultilayers[J].Vacuum,2017,146:11-14.
• [33] Zhu W W,Li Y,Zou H H,et al.Interfacial evolution mechanism of MgAl2O4/MgAl2O4 joints bonded with lanthanum glass[J].Journal of the European Ceramic Society,2023,43(12):5330-5338.

文章评论(Comment)：