Microstructure evolution and mechanical properties of ultrafine-grained Al-Li alloy fabricated via friction stir additive manufacturing

被引：11
|
作者：
Jiang, Tao [1 ]
Zhang, Mingtao [1 ]
Dai, Guoqing [2 ]
Shen, Zhikang [3 ]
Guo, Yanhua [2 ]
Sun, Zhonggang [2 ]
Li, Wenya [1 ]
机构：
[1] Northwestern Polytech Univ, Shanxi Key Lab Frict Welding Technol, Xian 710072, Peoples R China
[2] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 211816, Peoples R China
[3] Southwest Univ, Coll Engn & Technol, Chongqing 400715, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2024年 / 209卷
基金：
中国国家自然科学基金;
关键词：
Al - Li alloy; Ultrafine grains; Friction stir additive manufacturing; Microstructure evolution; Mechanical properties;
D O I：
10.1016/j.matchar.2024.113760
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-strength laminated blocks of 2060 Al-Li alloy were fabricated by friction stir additive manufacturing (FSAM) in this study, and a comprehensive analysis of their microstructural evolution and mechanical properties were investigated. The microstructure of the alloy produced by FSAM exhibited ultrafine equiaxed grains ranging from 2 to 5 mu m. Dislocation multiplication can be observed after FSAM, which is formed due to plastic deformation. Both the geometrically necessary dislocations density and the proportion of low angle grain boundaries show a decreasing trend from top to bottom. The reprecipitated theta' and Al6Mn precipitates at grain boundaries was observed, exhibiting a coarsening phenomenon along the building direction. Additionally, the mechanical properties of the FSAM-produced 2060 Al-Li alloys were assessed, revealing YS, UTS, and EL values of 290.4 MPa, 443.1 MPa, and 11.06%, respectively. And the microhardness exhibited a range from 110.8HV0.2 to 139.6HV0.2. In summary, this work offers practical guidelines for optimizing the additive manufacturing quality of Al-Li alloys
引用
收藏
页数：11
相关论文
共 50 条
  • [21] Enhanced fatigue properties of large-scale ultrafine-grained copper fabricated by friction stir additive manufacturing and subsequent cold rolling
    Liu, M.
    An, X. H.
    Wang, B. B.
    Wu, L. H.
    Xue, P.
    Liu, F. C.
    Ni, D. R.
    Xiao, B. L.
    Ma, Z. Y.
    INTERNATIONAL JOURNAL OF FATIGUE, 2024, 183
  • [22] Achieving high fatigue strength of large-scale ultrafine-grained copper fabricated by friction stir additive manufacturing
    Liu, M.
    An, X. H.
    Wang, B. B.
    Liu, F. C.
    Wu, L. H.
    Xue, P.
    Ni, D. R.
    Xian, B. L.
    Ma, Z. Y.
    MATERIALS LETTERS, 2023, 346
  • [23] Microstructure Evolution and Mechanical Properties of Friction Stir Welded Al-Cu-Li Alloy
    Chen, Peng
    Chen, Wenhao
    Chen, Jiaxin
    Chen, Zhiyu
    Tang, Yang
    Liu, Ge
    Huang, Bensheng
    Zhang, Zhiqing
    ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2024, 37 (05) : 855 - 871
  • [24] Investigation the effects of friction stir processing on microstructure and mechanical properties of Al-Cu alloy fabricated by wire arc additive manufacturing
    Liu, Li
    Xu, Wanghui
    Li, Yu
    Liu, Ruizhe
    Liu, Ruiwei
    Huang, Yongxian
    Dong, Chunlin
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2025, 34 : 539 - 551
  • [25] Correlation of microstructure and mechanical properties in friction stir welded 2198-T8 Al-Li alloy
    Gao, Chong
    Zhu, Zhixiong
    Han, Jian
    Li, Huijun
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 639 : 489 - 499
  • [26] Microstructure Characterization of Friction Stir Welded 2099 Al-Li Alloy
    Chen Xiangrong
    Zheng Ziqiao
    Ye Zhihao
    Kong Xiang
    RARE METAL MATERIALS AND ENGINEERING, 2018, 47 (06) : 1786 - 1792
  • [27] Influence of tool rotational speed on Microstructure and Mechanical Properties of Al-Li Alloy using Friction Stir Welding
    Kumar, Sanjeev
    Katiyar, Jitendra Kumar
    Acharya, Uttam
    Saha, Subash Chandra
    Roy, Barnik Saha
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, 2022, 236 (05) : 2106 - 2117
  • [28] Global and local mechanical properties and microstructure of Bobbin tool friction-stir-welded Al-Li alloy
    Wang, F. F.
    Li, W. Y.
    Shen, J.
    Zhang, Z. H.
    Li, J. L.
    dos Santos, J. F.
    SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2016, 21 (06) : 479 - 483
  • [29] Numerical investigation of friction stir welding parameters on microstructure, thermal and mechanical properties of ultrafine-grained Al-0.2 wt% Sc alloy sheet
    Talebsafa, Valeh
    Yousefieh, Mohammad
    Borhani, Ehsan
    Gharibshahiyan, Ehsan
    JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2023, 30 (01) : 61 - 73
  • [30] Research progress on the microstructure, mechanical properties and corrosion resistance of friction stir welded of Al-Li alloy joints
    Li, Shuai
    Hou, Xiaotong
    Yan, Dejun
    Yang, Guoshun
    Xu, Rongzheng
    Liao, Chuanqing
    MATERIALS TODAY COMMUNICATIONS, 2024, 39
12345