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摩擦增材辅助Ti/Al搅拌摩擦搭接接头特征分析

吕宗亮, 刘景麟, 韩振宇, 朱栋, 万龙, 黄永宪

吕宗亮, 刘景麟, 韩振宇, 朱栋, 万龙, 黄永宪. 摩擦增材辅助Ti/Al搅拌摩擦搭接接头特征分析[J]. 焊接学报, 2022, 43(6): 69-74. DOI: 10.12073/j.hjxb.20211229003
引用本文: 吕宗亮, 刘景麟, 韩振宇, 朱栋, 万龙, 黄永宪. 摩擦增材辅助Ti/Al搅拌摩擦搭接接头特征分析[J]. 焊接学报, 2022, 43(6): 69-74. DOI: 10.12073/j.hjxb.20211229003
LV Zongliang, LIU Jinglin, HAN Zhenyu, ZHU Dong, WAN Long, HUANG Yongxian. Characteristic analysis of friction additive assisted Ti/Al friction stir lap welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(6): 69-74. DOI: 10.12073/j.hjxb.20211229003
Citation: LV Zongliang, LIU Jinglin, HAN Zhenyu, ZHU Dong, WAN Long, HUANG Yongxian. Characteristic analysis of friction additive assisted Ti/Al friction stir lap welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(6): 69-74. DOI: 10.12073/j.hjxb.20211229003

摩擦增材辅助Ti/Al搅拌摩擦搭接接头特征分析

基金项目: 国家自然科学基金资助项目(52175301, 52001099)
详细信息
    作者简介:

    吕宗亮,硕士;主要从事异种金属的搅拌摩擦焊研究. Email:kkyunhui@163.com

    通讯作者:

    黄永宪,博士,教授; Email:yxhuang@hit.edu.cn.

  • 中图分类号: TG457

Characteristic analysis of friction additive assisted Ti/Al friction stir lap welding

  • 摘要: 为解决Ti/Al异种材料搅拌摩擦焊接接头强度低、搅拌针磨损等问题,提出一种摩擦增材辅助搅拌摩擦搭接焊(friction addition-friction stir lap welding, FA-FSLW)技术. 该新工艺延续了固相连接的优势,具有热输入量低、界面金属间化合物薄等特点.文中研究了以6082铝合金作预沉积层辅助实现3 mm厚2A12铝合金板与4 mm厚TC4钛合金板之间的连接,焊接过程中搅拌头扎入铝沉积层而不接触钛表面,得到抗拉载荷最大为12.2 kN的接头.结果表明, FA-FSLW复合焊接头的界面迁移越大,接头承载越小.同时,发现界面处的Ti, Al元素发生了明显互扩散,Si元素在界面偏聚,与Ti, Al元素发生冶金反应后形成层状纳米级Ti-Al-Si金属间化合物,为提高接头强度奠定基础.
    Abstract: Friction stir lap welding assisted by friction additive (FA-FSLW) was proposed to solve the following problems during Ti/Al dissimilar friction stir welding process: low joint strength and wear of tool. This new technology contains the advantages of solid state welding, such as low heat input, thinner intermetallic compounds layer. This study selected 6082 aluminum alloys as the pre-deposition layer to assist the bonding between 3 mm thick 2A12 aluminum alloy and 4 mm thick TC4 titanium alloy plates. The tool was set into the 6082 deposition without touching the titanium surface. The joint with the maximum tensile load of 12.2 kN was obtained. The study found that the larger the interface offset, the lower the load bearing. The Ti and Al elements have undergone significant inter-diffusion during FA-FSLW process. The element of Si was segregated at the interface, and then metallurgical reacted with Ti and Al, to form a Ti-Al-Si intermetallic compound layered of nano-level, which established the foundation for high load-bearing of the joint.
  • 图  1   FA-FSLW 过程示意图

    Figure  1.   Process schematic of FA-FSLW. (a) schematic diagram of surface roughening and friction additive process; (b) schematic of tool position; (c) novel large-end pin

    图  2   FA-FSLW 接头宏观形貌

    Figure  2.   Macrostructure of FA-FSLW joint

    图  3   界面迁移示意图

    Figure  3.   Sketch of interface off-set

    图  4   接头界面迁移形貌

    Figure  4.   Feature of interface off-set

    图  5   接头承载能力与界面迁移量的关系

    Figure  5.   Relationship between load capacity and interface off-set

    图  6   断裂形态

    Figure  6.   Fracture morphology. (a) c = 6; (b) c = 10; (c) c = 12; (d) c = 20

    图  7   Al-Al搅拌摩擦搭接接头的两种连接形式

    Figure  7.   Two joining mode at Al-Al FSW lap joint. (a) cross section of the joint; (b) macro morphology of fracture

    图  8   Ti/Al界面元素分布情况

    Figure  8.   Eldments distribution at Ti/Al interface. (a) over all view; (b) Al; (c) Ti; (d) Si; (e) V; (f) Mg

    图  9   Ti/Al界面线扫描结果

    Figure  9.   Line scan at Ti/Al interface

  • [1]

    Liu H J, Zhou L, Liu Q W. Microstructural characteristics and mechanical properties of friction stir welded joints of Ti–6Al–4V titanium alloy[J]. Materials and Design, 2010, 31: 1650 − 1655. doi: 10.1016/j.matdes.2009.08.025

    [2] 黄永宪, 吕宗亮, 万龙, 等. 钛/铝异质金属搅拌摩擦焊技术研究进展[J]. 航空学报, 2018, 39(11): 1 − 12.

    Huang Yongxian, Lv Zongliang, Wan Long, et al. Research progress of friction stir welding technology for Ti/Al dissimilar metals[J]. Acta Aeronautica et Astronautica Sinica, 2018, 39(11): 1 − 12.

    [3]

    Fujii H, Sun Y F, Kato H, Nakata K. Investigation of welding parameter dependent microstructure and mechanical properties in friction stir welded pure Ti joints[J]. Materials Science and Engineering A, 2010, 527: 3386 − 3391. doi: 10.1016/j.msea.2010.02.023

    [4]

    Huang Y X, Lv Z L, Wan L, et al. A new method of hybrid friction stir welding assisted by friction surfacing for joining dissimilar Ti/Al alloy[J]. Materials Letters, 2017, 207(15): 172 − 175.

    [5] 李 梁, 孙建科, 孟祥军. 钛合金的应用现状及发展前景[J]. 钛工业进展, 2004, 21(5): 19 − 24. doi: 10.3969/j.issn.1009-9964.2004.05.005

    Li Liang, Sun Jianke, Meng Xiangjun. Application status and development prospect of titanium alloy[J]. Titanium Industry Progress, 2004, 21(5): 19 − 24. doi: 10.3969/j.issn.1009-9964.2004.05.005

    [6]

    Chen Y C, Quan N, Ke L M. Interface characteristic of friction stir welding lap joints of Ti/Al dissimilar alloys[J]. Transations Nonferrous Metals Society of China, 2012, 22: 299 − 304.

    [7] 陈玉华, 董春林, 倪泉, 等. 钛合金/铝合金搅拌摩擦焊接头的显微组织[J]. 中国有色金属学报, 2010, 20: s211 − s214. doi: 10.1016/S1003-6326(10)60041-6

    Chen Yuhua, Dong Chunlin, Ni Quan, et al. Microstructure of friction stir welded joint of Ti/Al alloys[J]. The Chinses Journal of Nonferrous Metals, 2010, 20: s211 − s214. doi: 10.1016/S1003-6326(10)60041-6

    [8]

    Chen Y C, Nakata K. Microstructural characterization and mechanical properties in friction stir welding of aluminum and titanium dissimilar alloys[J]. Materials and Design, 2009, 30: 469 − 474. doi: 10.1016/j.matdes.2008.06.008

    [9]

    Bang H S, Bang H S, Song H J, et al. Joint properties of dissimilar Al6061-T6 aluminum alloy/Ti-6%Al-4%V titanium alloy by gas tungsten arc welding assisted hybrid friction stir welding[J]. Materials and Design, 2013, 51: 544 − 551. doi: 10.1016/j.matdes.2013.04.057

    [10]

    Li B, Zhang Z H, Shen Y F, et al. Dissimilar friction stir welding of Ti-6Al-4V alloy and aluminum alloy employing a modified butt joint configuration: Influences of process variables on the weld interfaces and tensile properties[J]. Materials and Design, 2014, 53: 838 − 848. doi: 10.1016/j.matdes.2013.07.019

    [11]

    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. doi: 10.1016/j.pmatsci.2020.100706

    [12]

    Mishra R S, Ma Z Y. Friction stir welding and processing[J]. Materials Science and Engineering:R, 2010, 50(1): 1 − 78.

    [13]

    K V, Semiatin S L. Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys[J]. Scripta Materialia, 2000, 43(8): 743 − 749. doi: 10.1016/S1359-6462(00)00480-2

    [14]

    Lv Z L, Han Z Y, Zhu D, et al. Enlarged-end tool for friction stir lap welding towards hook defect controlling[J]. China Welding, 2020, 29(1): 1 − 7.

    [15]

    Prado R A, Murr L E, Shindo D J, et al. Tool wear in the friction-stir welding of aluminum alloy 6061 + 20%Al2O3: a preliminary study[J]. Scripta Materialia, 2001, 45(1): 75 − 80. doi: 10.1016/S1359-6462(01)00994-0

    [16] 孙天娇. Ti-6Al-4V/Al-12Si界面金属间化合物生长规律及转变机制研究[D]. 哈尔滨: 哈尔滨工业大学, 2011.

    Sun Tianjiao. Growth and Transformation Mechanism of Intermetallic Compounds at the Interface of Ti-6Al-4V/Al-12Si[D]. Harbin: Harbin Institute of Technology, 2011.

    [17]

    Luo J G, Acoff V L. Using cold roll bonding and annealing toprocess Ti/Al multi-layered composites from elemental foils[J]. Materials Science and Engineering A, 2004, 379: 164 − 172. doi: 10.1016/j.msea.2004.01.021

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出版历程
  • 收稿日期:  2021-12-28
  • 网络出版日期:  2022-05-30
  • 刊出日期:  2022-07-07

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