Evaluation of crack nucleation site and mechanical properties for friction stir welded butt joint in 2024-T3 aluminum alloy

被引：1
作者：
Takao Okada
Masako Suzuki
Haruka Miyake
Toshiya Nakamura
Shigeru Machida
Motoo Asakawa
机构：
[1] Japan Aerospace Exploration Agency,Aviation Program Group
[2] Waseda University,undefined
来源：
The International Journal of Advanced Manufacturing Technology | 2010年 / 50卷
关键词：
Friction stir welding; Fatigue strength; Aluminum alloy; Nucleation site;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, metallographic observations, hardness measurement, and static and fatigue tests were conducted to investigate the discontinuity states which become crack nucleation sites in friction stir welded butt joints in 2-mm-thick 2024-T3 aluminum alloy and static and fatigue properties of the joint. Because different types of surface finish can be used depending on the application of the joint, several types of surface conditions were tested to evaluate their effect on crack nucleation sites and static and fatigue life. Indentation hardness tests revealed that typical hardness reduction is not necessarily observed on the section of the welding line. Based on fatigue test results, it was confirmed that there are several types of crack nucleation sites for friction stir welding (FSW) joints depending on the surface finish, and the features of the fracture surface also differ depending on the site. Furthermore, the type of discontinuity state affects the fatigue life of the FSW joint.
引用
收藏
页码：127 / 135
页数：8
相关论文
共 50 条
[31]   Microstructure and Mechanical Properties of Friction Stir Welded 7050-T7451 Aluminum Alloy Plates [J].
朱丹阳 .
Journal of Wuhan University of Technology(Materials Science), 2009, 24 (S1) :63-67
[32]   Numerical simulation and experimental research on friction stir welding of 2024-T3 aeronautical aluminum alloy [J].
Li, Chang ;
Zhang, Dacheng ;
Gao, Xing ;
Gao, Hexin ;
Han, Xing .
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, 2021, 35 (20) :2230-2248
[33]   Corrosion Properties of Friction Stir Welded 2024 Aluminum Alloys [J].
Zhen-zhong, Chen ;
Mao-min, Wu ;
Yao, Xiao .
APPLIED MECHANICS, MATERIALS AND MANUFACTURING IV, 2014, 670-671 :573-576
[34]   The Microstructure, Texture and Mechanical Properties of Friction Stir Welded Aluminum Alloy [J].
Mouloud Saliha Gachi ;
Thierry Aissani ;
Anne.Laure Baudin ;
François Helbert ;
Sébastien Brisset ;
Marie-Hélène Gautrot ;
Djamel Mathon ;
Fouad Bradai .
Russian Journal of Non-Ferrous Metals, 2020, 61 :523-533
[35]   Mechanical properties of underwater friction stir welded 2219 aluminum alloy [J].
刘会杰 ;
张会杰 ;
黄永宪 ;
于雷 .
TransactionsofNonferrousMetalsSocietyofChina, 2010, 20 (08) :1387-1391
[36]   Mechanical properties of underwater friction stir welded 2219 aluminum alloy [J].
Liu Hui-jie ;
Zhang Hui-jie ;
Huang Yong-xian ;
Yu Lei .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (08) :1387-1391
[37]   The Microstructure, Texture and Mechanical Properties of Friction Stir Welded Aluminum Alloy [J].
Gachi, Saliha ;
Aissani, Mouloud ;
Baudin, Thierry ;
Helbert, Anne Laure ;
Brisset, Francois ;
Gautrot, Sebastien ;
Mathon, Marie-Helene ;
Bradai, Djamel ;
Boubenider, Fouad .
RUSSIAN JOURNAL OF NON-FERROUS METALS, 2020, 61 (05) :523-533
[38]   Impact of cold spraying on microstructure and mechanical properties of optimized friction stir welded AA2024-T3 joint [J].
Li, W. Y. ;
Li, N. ;
Yang, X. W. ;
Feng, Y. ;
Vairis, A. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 702 :73-80
[39]   Fatigue crack growth behavior of 7050 aluminum alloy friction stir welded joint [J].
Jin Y. ;
Zhang L. ;
Zhang L. ;
Wang X. .
Hanjie Xuebao/Transactions of the China Welding Institution, 2020, 41 (10) :11-16
[40]   Microstructure, mechanical and electrical properties of dissimilar friction stir welded 2024 aluminum alloy and copper joints [J].
Khajeh, Rasoul ;
Jafarian, Hamid Reza ;
Seyedein, Seyed Hossein ;
Jabraeili, Reza ;
Eivani, Ali Reza ;
Park, Nokeun ;
Kim, Yejin ;
Heidarzadeh, Akbar .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 14 :1945-1957
12345