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采用搅拌摩擦搭接焊(FSLW)及超声振动辅助FSLW(UAFSLW)分别对6061铝合金和QP1180钢进行焊接，研究了超声振动对铝/钢异种金属FSLW接头组织性能的作用规律。结果表明，与FSLW接头相比，UAFSLW接头宏观缺陷降低；铝侧搅拌区(SZ)晶粒尺寸减小19.8%,显微硬度由73.3 HV提高到81.4 HV;钢侧SZ的晶粒尺寸无明显变化。与FSLW接头相比，UAFSLW接头金属间化合物(IMCs)平均层厚由1.2μm减小到0.6μm,接头单位平均失效载荷由335 N·mm-1提高到371 N·mm-1,断裂位置由界面转移到铝侧。
Abstract：Friction stir lap welding(FSLW) and ultrasonic vibration-assisted FSLW(UAFSLW) were used to weld 6061 aluminum alloy and QP1180 steel, respectively. The effect of ultrasonic vibration on the microstructure and properties of aluminum/steel dissimilar metal FSLW joint was studied. The results show that compared with the FSLW joint, the macroscopic defects of the UAFSLW joint are reduced. The grain size of the Al side stirring zone(SZ) is reduced by 19.8%, and the microhardness increases from 73.3 HV to 81.4 HV. Grain size on SZ steel side has no obvious change. Compared with FSLW joints, the average layer thickness of intermetallic compounds(IMCs) in UAFSLW joints decreases from 1.2 μm to 0.6 μm. The unit average failure load of UAFSLW joints increases from 335 N·mm-1 to 371 N·mm-1, and the fracture position shifts from the interface to the Al side.
[1] 冯菲玥，陈云霞.铝/钢异种金属焊接技术的研究现状[J].焊接技术，2021,50(1):1-8.FENG Feiyue,CHEN Yunxia.A review of the research on aluminum/steel dissimilar metal welding techniques[J].Welding Technology,2021,50(1):1-8.
[2] 朱瑞灿，赵衍华，王浩，等.铝/钢异种金属旋转摩擦焊接研究现状[J].焊接，2020,(12):1-10,61.ZHU Ruican,ZHAO Yanhua,WANG Hao,et al.Research status of rotary friction welding of aluminum/steel dissimilar metals[J].Welding & Joining,2020,(12):1-10,61.
[3] GHOSH P S,SEN A,CHATTOPADHYAYA S,et al.Progressive developments and challenges in dissimilar laser welding of steel to various other light alloys (Al/Ti/Mg):A comprehensive review[J].Heliyon,2022,(8):2405-8440.
[4] 翟明，宋宏图，石磊，等.搅拌摩擦焊在轨道交通领域的应用现状与发展前景[J].金属加工(热加工),2024,(1):1-7.ZHAI Ming,SONG Hongtu,SHI Lei,et al.The application and development of friction stir welding in rail transit field[J].MW Metal Forming,2024,(1):1-7.
[5] YANG Y,LUO Z,ZHANG Y,et al.Dissimilar welding of aluminum to steel:A review[J].Journal of Manufacturing Processes,2024,110:376-397.
[6] LIU X C,WU C S.Elimination of tunnel defect in ultrasonic vibration enhanced friction stir welding[J].Materials & Design,2016,90:350-358.
[7] ZHANG Z,HE C,LI Y,et al.Effects of ultrasonic assisted friction stir welding on flow behavior,microstructure and mechanical properties of 7N01-T4 aluminum alloy joints[J].Journal of Materials Science and Technology,2020,43:1-13.
[8] WAN L,HUANG Y.Microstructure and mechanical properties of Al/steel friction stir lap weld[J].Metals,2017,7(12):542-555.
[9] 于明润.铝/钛搭接超声辅助搅拌摩擦焊接头组织演变及强化机理研究[D].哈尔滨：哈尔滨工业大学，2020.YU Mingrun.Study on microstructure evolution and strengthen mechanism of Al/Ti ultrasonic assisted friction stir lap joints[D].Harbin:Harbin Institute of Technology,2020.
[10] THOMA M,WAGNER G,STRA B,et al.Ultrasound enhanced friction stir welding of aluminum and steel:Process and properties of EN AW 6061/DC04-Joints[J].Journal of Materials Science and Technology,2018,34(1):163-172.
[11] MAO Q,COUTRIS N,RACK H,et al.Investigating ultrasound-induced acoustic softening in aluminum and its alloys[J].Ultrasonics,2019,102:106005.
[12] BLAHA F,LANGENECKER B.Tensile deformation of zinc crystal under ultrasonic vibration[J].Naturwissenschaften,1955,42(556):1-10.
[13] ZHANG G,GAO J,WU C S.Revealing the acoustic effects on heat transfer and material flow in ultrasonic assisted friction stir welding of dissimilar Al/Mg alloys[J].Journal of Materials Research and Technology,2023,26:1882-1902.
[14] KUMAR S,WU C.Suppression of intermetallic reaction layer by ultrasonic assistance during friction stir welding of Al and Mg based alloys[J].Journal of Alloys and Compounds,2020,827:154343.
[15] 井瑞，谭茂举，武传松，等.2A12/AZ31B异质合金超声振动辅助搅拌摩擦焊核区晶粒组织[J].材料工程，2023,51(12):75-83.JING Rui,TAN Maoju,WU Chuansong,et al.Grain structure in ultrasonic vibration assisted friction stir weld nugget zones of 2A12/AZ31B dissimilar alloys[J].Journal of Materials Engineering,2023,51(12):75-83.
[16] ZHOU L,YU M,LIU B,et al.Microstructure and mechanical properties of Al/steel dissimilar welds fabricated by friction surfacing assisted friction stir lap welding[J].Journal of Materials Research and Technology,2020,9(1):212-221.
基本信息:
中图分类号:TG453.9
引用信息:
[1]兰青,王文,乔柯,等.铝/钢异种金属超声振动辅助搅拌摩擦搭接焊接头微观组织与力学性能[J].塑性工程学报,2025,32(03):254-260.
基金信息:
国家自然科学基金重点资助项目(52034005);国家自然科学基金国家重大科研仪器研制项目(52227807);国家自然科学基金青年基金资助项目(52104383); 陕西省教育厅青年创新团队建设项目(21JP058)
2025-04-07
2025-04-07
2025-04-07