Effect of Temperature and Material Flow Gradients on Mechanical Performances of Friction Stir Welded AA6082-T6 Joints

被引：23

作者：

Ma, Xiaotian ^{[1
,2
]}

Xu, Shuangming ^{[3
]}

Wang, Feifan ^{[4
]}

Zhao, Yaobang ^{[5
]}

Meng, Xiangchen ^{[1
,2
]}

Xie, Yuming ^{[1
,2
]}

Wan, Long ^{[1
,2
]}

Huang, Yongxian ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Zhengzhou Res Inst, Zhengzhou 450046, Peoples R China

[3] China Aerosp Sci & Technol Corp, Beijing 100048, Peoples R China

[4] Beijing Inst Astronaut Syst Engn, China Acad Launch Vehicle Technol, Beijing 100076, Peoples R China

[5] Shanghai Spaceflight Precis Machinery Inst, Shanghai 201600, Peoples R China

来源：

MATERIALS | 2022年 / 15卷 / 19期

基金：

中国国家自然科学基金;

关键词：

friction stir welding; aluminum alloys; gradient; material flow; microstructure; mechanical properties; MICROSTRUCTURE EVOLUTION; WELDING SPEED; BEHAVIOR; THICKNESS; ALLOYS; SIDE;

D O I：

10.3390/ma15196579

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The temperature and material flow gradients along the thick section of the weld seriously affect the welding efficiency of friction stir welding in medium-thick plates. Here, the effects of different gradients obtained by the two pins on the weld formation, microstructure, and mechanical properties were compared. The results indicated that the large-tip pin increases heat input and material flow at the bottom, reducing the gradient along the thickness. The large-tip pin increases the welding speed of defect-free joints from 100 mm/min to 500 mm/min compared to the small-tip pin. The ultimate tensile strength and elongation of the joint reached 247 MPa and 8.7%, equal to 80% and 65% of the base metal, respectively. Therefore, reducing the temperature and material flow gradients along the thickness by designing the pin structure is proved to be the key to improving the welding efficiency for thick plates.

引用

页数：15

共 35 条

[1] Pin Angle Thermal Effects on Friction Stir Welding of AA5058 Aluminum Alloy: CFD Simulation and Experimental Validation [J].

Chupradit, Supat ;

Bokov, Dmitry Olegovich ;

Suksatan, Wanich ;

Landowski, Michal ;

Fydrych, Dariusz ;

Abdullah, Mahmoud E. ;

Derazkola, Hesamoddin Aghajani .

MATERIALS, 2021, 14 (24)

[2] Softening behavior of stationary shoulder friction stir welded joint for thick-plate Al-Li-Cu alloy [J].

Gu, Chao ;

Yang, Xinqi ;

Tang, Wenshen ;

Luo, Ting ;

Wang, Ruilin .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2022, 20 :3008-3024

[3] Joint formation mechanism of high depth-to-width ratio friction stir welding [J].

Huang, Yongxian ;

Xie, Yuming ;

Meng, Xiangchen ;

Li, Junchen ;

Zhou, Li .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 35 (07) :1261-1269

[4] Friction stir welding/processing of polymers and polymer matrix composites [J].

Huang, Yongxian ;

Meng, Xiangchen ;

Xie, Yuming ;

Wan, Long ;

Lv, Zongliang ;

Cao, Jian ;

Feng, Jicai .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2018, 105 :235-257

[5] Numerical design of high depth-to-width ratio friction stir welding [J].

Huang, Yongxian ;

Xie, Yuming ;

Meng, Xiangchen ;

Lv, Zongliang ;

Cao, Jian .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2018, 252 :233-241

[6] Effect of Thread and Rotating Speed on Material Flow Behavior and Mechanical Properties of Friction Stir Lap Welding Joints [J].

Ji, Shude ;

Li, Zhengwei ;

Zhou, Zhenlu ;

Wu, Baosheng .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (10) :5085-5096

[7] Numerical simulation of vortex- friction stir welding based on internal friction between identical materials [J].

Liu, Xiaochao ;

Sun, Zhen .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2022, 185

[8] Elimination of root kissing bond in friction stir welding of thick plates [J].

Ma, Xiaotian ;

Meng, Xiangchen ;

Xie, Yuming ;

Zhao, Yaobang ;

Peng, Xiaoyang ;

Liang, Mingyang ;

Mao, Dongxin ;

Wan, Long ;

Huang, Yongxian .

MATERIALS LETTERS, 2022, 328

[9] Stepped-shoulder friction stir welding to alleviate weld thinning for dissimilar AA2195-T8/AA2219-T6 alloys [J].

Ma, Xiaotian ;

Xie, Yuming ;

Meng, Xiangchen ;

Chen, Huizi ;

Wang, Feifan ;

Jiang, Yimeng ;

Wan, Long ;

Huang, Yongxian .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021, 26 (08) :599-605

[10] Microstructural evolution in friction self-piercing riveted aluminum alloy AA7075-T6 joints [J].

Ma, Yunwu ;

Niu, Sizhe ;

Liu, Huihong ;

Li, Yongbing ;

Ma, Ninshu .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 82 :80-95

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