水下搅拌摩擦焊改善中厚度铝/镁成形和性能的研究

黄体方; 万龙; 高祎晗; 黄永宪

doi:10.7512/j.issn.1001-2303.2023.03.10

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水下搅拌摩擦焊改善中厚度铝/镁成形和性能的研究
Research on Improving Formation and Strength of Medium-thick AA6061 Al/AZ31B Mg Joint by Submerged Friction Stir Welding
2023年53卷第3期页码：83-90
DOI： 10.7512/j.issn.1001-2303.2023.03.10

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黄体方，万龙，高祎晗，等.水下搅拌摩擦焊改善中厚度铝/镁成形和性能的研究［J］.电焊机，2023，53（3）：83-90.

HUANG Tifang, WAN Long, GAO Yihan, et al.Research on Improving Formation and Strength of Medium-thick AA6061 Al/AZ31B Mg Joint by Submerged Friction Stir Welding[J].Electric Welding Machine, 2023, 53(3): 83-90.
黄体方，万龙，高祎晗，等.水下搅拌摩擦焊改善中厚度铝/镁成形和性能的研究［J］.电焊机，2023，53（3）：83-90. DOI： 10.7512/j.issn.1001-2303.2023.03.10.

HUANG Tifang, WAN Long, GAO Yihan, et al.Research on Improving Formation and Strength of Medium-thick AA6061 Al/AZ31B Mg Joint by Submerged Friction Stir Welding[J].Electric Welding Machine, 2023, 53(3): 83-90. DOI： 10.7512/j.issn.1001-2303.2023.03.10.

摘要

以厚度6 mm的铝/镁异种材料的搅拌摩擦焊为研究对象，分别在空气以及26.5 ℃和5 ℃的水下环境下进行焊接，对比研究不同环境下的接头的微观组织、接头性能，并对粘头机理进行探究。结果表明，水下搅拌摩擦焊能够有效降低焊接过程温度，抑制脆性Al-Mg金属间化合物的长大，缓解搅拌头粘头现象，能有效改善焊缝成形和接头力学性能。5 ℃冷却水环境下得到的铝/镁搅拌摩擦焊接头的拉伸性能和延伸率最高，达到129.3 MPa和4.4%，分别是常规空冷接头的1.8和3.9倍。同时揭示了搅拌头粘着材料主要由Mg,2,Al,3,和Al固溶体组成，说明搅拌头粘头现象与Al-Mg金属间化合物的生成直接相关。

Abstract

Pissimilar friction stir welding of aluminum/magnesium with 6 mm thickness was carried out in air and under water of 26.5 ℃ and 5 ℃. The microstructures and mechanical property of joints welded in different environments were studied and compared. The mechanism of tool adhesion was explored. The results showed that submerged friction stir welding effectively could reduce the temperature of the welding process, inhibit the growth of brittle Al-Mg intermetallic compounds, alleviate the phenomenon of tool adhension, and improve the weld formation and mechanical properties of the joint. The aluminum/magnesium dissimilar joint fabricated under 5 ℃water had the highest tensile properties and elongation of 129.3 MPa and 4.4%, 1.8 and 3.9 times that of air-cooled joints, respectively. It also revealed that the tool adhesive materials were mainly composed of Mg,2,Al,3, and Al solid solution, indicating that the tool adhesive phenomenon was directly related to the generation of Al-Mg intermetallic compounds.

关键词

铝/镁异种材料连接水下搅拌摩擦焊金属间化合物拉伸性能

Keywords

Al/Mgdissimilar materials joiningsubmerged friction stir weldingintermetallic compoundtensile strength

references

李首谊. 铝/镁异种合金搅拌摩擦焊工艺研究进展［J］. 金属加工：热加工， 2022（6）：52-60.

LI S Y. Research progress of friction stir welding of aluminum/magnesium alloy［J］. Metal working： thermal working， 2022（6）：52-60.

Zhao J， Envelope C， Shi L， et al. Evolution of microstructures and intermetallic compounds at bonding interface in friction stir welding of dissimilar Al/Mg alloys with/without ultrasonic assistance［J］. Journal of Materials Science & Technology， 2022， 139： 31-46.

Meng X C， Huang Y X， Cao J， et al. Recent progress on control strategies for inherent issues in friction stir welding［J］. Progress in Materials Science， 2021，115：100706.

王涛. 铝/镁异质合金搅拌摩擦焊材料流动试验研究［D］. 山东：山东大学，2021.

WANG T. Experimental study on material flow during friction stir welding of Al/Mg dissimilar alloys［D］. Shandong：Shandong University， 2021.

白英浩. 铝/镁异质合金超声辅助搅拌摩擦焊试验研究［D］. 山东：山东大学，2020.

BAI Y H. Experimental study on ultrasonic-assisted friction stir welding of Al/Mg dissimilar alloys［D］. Sh-andong：Shandong University，2020.

Niu S， Ji S， Yan D， et al. AZ31B/7075-T6 alloys friction stir lap welding with a zinc interlayer［J］. Journal of Materials Processing Technology，2019， 263： 82-90.

Zheng Y， Pan X， Ma Y， et al. Microstructure and Corrosion Behavior of Friction Stir-Welded 6061 Al/AZ31 Mg Joints with a Zr Interlayer［J］. Materials， 2019， 12（7）： 1115.

Abdollahzadeh A， Shokuhfar A， Cabrera J M， et al. In-situ nanocomposite in friction stir welding of 6061-T6 aluminum alloy to AZ31 magnesium alloy［J］. Journal of Materials Processing Technology，2019，263： 296-307.

Asl N S， Mirsalehi S E， Dehghani K. Effect of TiO2 nanoparticles addition on microstructure and mechanical properties of dissimilar friction stir welded AA6063-T4 aluminum alloy and AZ31B-O magnesium alloy［J］. Journal of Manufacturing Processes， 2019， 38： 338-354.

Gao Y， Morisada Y， Fujii H， et al. Dissimilar friction stir lap welding of magnesium to aluminum using plasma electrolytic oxidation interlayer［J］. Materials Science and Engineering： A， 2018， 711： 109-118.

Mofid M A， Abdollah-Zadeh A， Ghaini F M. The effect of water cooling during dissimilar friction stir welding of Al alloy to Mg alloy［J］. Materials & Design， 2012， 36： 161-167.

Zhao Y， Jiang S， Yang S， et al. Influence of cooling conditions on joint properties and microstructures of aluminum and magnesium dissimilar alloys by friction stir welding［J］. The International Journal of Advanced Manufacturing Technology， 2016， 83（1-4）： 673-679.

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