Investigation on Microstructure and Mechanical Property of the A7N01 Aluminum Alloy Welding Joint

被引：1
|
作者：
Yang, Shanglei [1 ]
Luo, Bin [2 ]
Lv, Renyuan [2 ]
Meng, Lichun [2 ]
Lin, Qinglin [2 ]
机构：
[1] Shanghai Univ Engn Sci, Shanghai 201620, Peoples R China
[2] CSR Sifang Locomot & Rolling Stock Co Ltd, Qingdao 266111, Peoples R China
来源：
FRONTIERS OF ADVANCED MATERIALS AND ENGINEERING TECHNOLOGY, PTS 1-3 | 2012年 / 430-432卷
基金：
中国国家自然科学基金;
关键词：
Aluminum alloy; welding joint; Microstructure; Mechanical property;
D O I：
10.4028/www.scientific.net/AMR.430-432.2091
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The A7N01 aluminum alloy was welded by MIG welding in test, and the microstructure and mechanical property of joint were investigated. The results of experimentation show that the feature of the A7N01 aluminum alloy MIG welding joint is perfect with a gentle transition. The microstructure of fusion metal in A7N01 joint is as-cast grain. The microstructure of fusion zone consists of the fine columnar grains. It is rolling structure in the parent metal. In HAZ, the rolling structure is disappearing. The eta' (MgZn2) strengthening phases were precipitated in the grain boundary of the A7N01 aluminum alloy. The size of eta' strengthening phase is about 5-10 nm. There is no precipitation phase in welding metal of A7N01 joint. The fine eta' transitional phases of the primeval parent metal are turned to the coarse eta (MgZn2) stable phases of the HAZ. The size of eta strengthening phase is about 50 nm. The tensile strength and the percentage elongation after fracture of A7N01 welding joint is below the parent metal.
引用
收藏
页码：2091 / +
页数：2
相关论文
共 50 条
  • [31] The effect of postprocessing on tensile property and microstructure evolution of friction stir welding aluminum alloy joint
    Hu, Z. L.
    Wang, X. S.
    Pang, Q.
    Huang, F.
    Qin, X. P.
    Hua, L.
    MATERIALS CHARACTERIZATION, 2015, 99 : 180 - 187
  • [32] Microstructure and mechanical properties of friction stir welding joint of 7A05 aluminum alloy thick-sheet
    Dong, Jihong
    Tong, Jianhua
    Guo, Xiaojuan
    Luan, Guohong
    Hanjie Xuebao/Transactions of the China Welding Institution, 2012, 33 (04): : 65 - 68
  • [33] Comparative Analysis on Microstructure and Mechanical Properties between EBW and TANDEM Welding of 7A52 Aluminum Alloy Joint
    Zhai XiweiChen FurongBi LiangyanZhang Chuanchen College of Materials Science and EngineeringInner Mongolia University of TechnologyHohhot ChinaKey Laboratory of Materials Processing Control Engineering of Inner Mongolia Autonomous RegionHohhot ChinaSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing China
    稀有金属材料与工程, 2011, 40(S4) (S4) : 68 - 73
  • [34] Comparative Analysis on Microstructure and Mechanical Properties between EBW and TANDEM Welding of 7A52 Aluminum Alloy Joint
    Zhai Xiwei
    Chen Furong
    Bi Liangyan
    Zhang Chuanchen
    RARE METAL MATERIALS AND ENGINEERING, 2011, 40 : 68 - 73
  • [35] Effects of ultrasonic assisted friction stir welding on flow behavior,microstructure and mechanical properties of 7N01-T4 aluminum alloy joints
    Zhiqiang Zhang
    Changshu He
    Ying Li
    Lei Yu
    Su Zhao
    Xiang Zhao
    Journal of Materials Science & Technology, 2020, 43 (08) : 1 - 13
  • [36] Effects of ultrasonic assisted friction stir welding on flow behavior, microstructure and mechanical properties of 7N01-T4 aluminum alloy joints
    Zhang, Zhiqiang
    He, Changshu
    Li, Ying
    Yu, Lei
    Zhao, Su
    Zhao, Xiang
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 43 : 1 - 13
  • [37] Influence of alloy elements on microstructure and mechanical property of aluminum-steel lap joint made by gas metal arc welding
    Su, Yongchao
    Hua, Xueming
    Wu, Yixiong
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2014, 214 (04) : 750 - 755
  • [38] Investigation on fatigue property of the A6N01 high strength aluminum alloy
    Ding, Bo
    Yang, Shanglei
    Lin, Qinglin
    Chao, Xu
    FROM FAILURE TO BETTER DESIGN, MANFACTURE AND CONSTRUCTION, 2012, : 157 - 160
  • [39] Microstructure and mechanical property of transient liquid phase bonded aluminum silicon alloy joint
    Zhang, Weihua
    Qiu, Xiaoming
    Chen, Xiaowei
    Zhao, Xihua
    Sun, Daqian
    Li, Yongqiang
    Hanjie Xuebao/Transactions of the China Welding Institution, 2009, 30 (02): : 121 - 124
  • [40] Fatigue design and prediction on cruciform joint of 7N01 aluminum alloy
    Wang P.
    Mi L.
    Yu Y.
    Dong P.
    Hanjie Xuebao/Transactions of the China Welding Institution, 2019, 40 (10): : 20 - 24
12345