Microstructure and mechanical properties of friction spot welding aluminium-lithium 2A97 alloy

被引：37
|
作者：
Gao, Chong [1 ]
Gao, Rongqiang [1 ]
Ma, Yue [1 ]
机构：
[1] Beihang Univ, Key Lab Aerosp Mat & Performance, Sch Mat Sci & Engn, Minist Educ, Beijing 100191, Peoples R China
来源：
MATERIALS & DESIGN | 2015年 / 83卷
关键词：
Aluminium-lithium alloy; 2A97; Friction spot welding; Heat treatment; Microstructure; Mechanical property; AL-LI ALLOY; THERMOMECHANICAL TREATMENT; PLASTIC-DEFORMATION; WELDED-JOINTS; PRECIPITATION; EVOLUTION; BEHAVIOR; FAILURE; SHEET;
D O I：
10.1016/j.matdes.2015.06.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we investigated the microstructure and mechanical properties in different regions of the friction spot welded 2A97 aluminium-lithium alloy subjected to different heat treatment processes. The 2.0 mm thick hot-rolled sheet of 2A97 alloy was successfully welded using friction spot welding method with optimised welding parameters. Afterwards, the as-welded 2A97 joints experienced two subsequent heat treatment procedures; solution and ageing; directly ageing. The corresponding microstructure and mechanical properties of the heat-treated specimens were studied by means of optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), hardness test and tensile test. The results show that the mechanical properties of the 2A97 joints before and after heat treatment were significantly modified, which was mainly related to fine-grained microstructure, size and type of precipitates, and dislocation density. Compared to the base material and the material that only experienced direct ageing, the whole friction spot welded 2A97 joint after solution and ageing treatment delivered better mechanical properties. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：719 / 727
页数：9
相关论文
共 50 条
  • [21] Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties
    Weng, Fei
    Liu, Yongfeng
    Chew, Youxiang
    Lee, Bing Yang
    Ng, Fern Lan
    Bi, Guijun
    SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2020, 25 (05) : 359 - 368
  • [22] Characteristics of Joint Welded by Laser Welding of Aluminium-Lithium Alloy with Filler Wire
    Yang JLi X YGong S LChen LXu F School of Material Science and EngineeringBeijing University of TechnologyBeijing China Science and Technology on Power Beam Processes LaboratoryBeijing Aeronautical Manufacturing Technology Research InstituteBeijing China
    稀有金属材料与工程, 2011, 40(S4) (S4) : 138 - 141
  • [23] Microstructure and mechanical properties of 2195/5A06 dissimilar joints made by resistance spot welding
    Yang, Yue
    Li, Yang
    Bi, Jing
    Liu, Hanwei
    Ao, Sansan
    Luo, Zhen
    MATERIALS CHARACTERIZATION, 2022, 191
  • [24] Friction stir welding of Ti-6Al-4V alloy: Friction tool, microstructure, and mechanical properties
    Li, Junping
    Shen, Yifu
    Hou, Wentao
    Qi, Yiming
    JOURNAL OF MANUFACTURING PROCESSES, 2020, 58 : 344 - 354
  • [25] Effect of Heat Input on the Microstructure and Mechanical Properties of Electron Beam-Welded AW2099 Aluminium-Lithium Alloy
    Sahul, Miroslav
    Sahul, Martin
    Orlowska, Marta
    Jurci, Peter
    Domankova, Maria
    Drienovsky, Marian
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2024, 33 (02) : 776 - 796
  • [26] Characteristics of Joint Welded by Laser Welding of Aluminium-Lithium Alloy with Filler Wire
    Yang, J.
    Li, X. Y.
    Gong, S. L.
    Chen, L.
    Xu, F.
    RARE METAL MATERIALS AND ENGINEERING, 2011, 40 : 138 - 141
  • [27] Microstructure and Mechanical Properties of Dissimilar Joint of Aluminium Alloy and Pure Copper by Friction Stir Welding
    Meng Q.
    Che Q.
    Wang K.
    Zhang K.
    Wang W.
    Huang L.
    Peng P.
    Qiao K.
    Cailiao Daobao/Materials Reports, 2019, 33 (06): : 2030 - 2034
  • [28] Microstructure and Properties of Welding Joints of 7A52 aluminium alloy by the Friction Stir Welding
    Chen, Donggao
    Liu, Jinhe
    Ma, Zhihua
    Ye, Chen
    Liu, Wen
    FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE IV, PTS 1-5, 2014, 496-500 : 292 - +
  • [29] Residual stress distribution of aluminium-lithium alloy in hybrid process of friction stir welding and laser peening
    Li, Kangmei
    He, Xingzhe
    Li, Le
    Yang, Liuyong
    Hu, Jun
    OPTICS AND LASER TECHNOLOGY, 2022, 152
  • [30] A study on microstructure and mechanical properties of AA 3003 aluminum alloy joints by underwater friction stir welding
    Tan, Y. B.
    Wang, X. M.
    Ma, M.
    Zhang, J. X.
    Liu, W. C.
    Fu, R. D.
    Xiang, S.
    MATERIALS CHARACTERIZATION, 2017, 127 : 41 - 52
12345