Microstructure and Properties of Friction Stir Welding 7050-T7451 Aluminum Alloy

被引：0

作者：

Zhang B. ^{[1
]}

Chen C. ^{[2
]}

Liu F. ^{[2
]}

Niu P. ^{[2
]}

Liu Q. ^{[2
]}

Huang C. ^{[2
]}

机构：

[1] Avic Xi’an Aircraft Industry Group Company Ltd., Xi’an

[2] School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang

来源：

Cailiao Daobao/Materials Reports | 2023年 / 37卷 / 24期

基金：

中国国家自然科学基金;

关键词：

7050 aluminum alloy; friction stir welding; mechanical property; microstructure;

D O I：

10.11896/cldb.22030282

中图分类号：

学科分类号：

摘要：

3.5 mm thick 7050-T7451 aluminum alloy was friction stir butt welded at various welding parameters. The forming quality of weld,microstructure evolution and tensile properties of the welded joints were studied in detail. The results show that the joint without internal defects can be obtained when the rotational speed (ω )is in the range of 400—1 000 r / min and the welding speed (v)is in the range of 50—300 mm / min. When the welding speed is constant,the tensile properties of the joints increase and then decrease with the increase of the rotating speed. When the rotation speed is 600 r / min and the welding speed is 150 mm / min,the tensile strength of the joint is 475 MPa,the strength coefficient is 90% and the elongation is 5. 7%. When the value of ω / v is between 4 and 6,the joints with good tensile properties can be fabricated. © 2023 Cailiao Daobaoshe/ Materials Review. All rights reserved.

引用

共 23 条

[1]

Zhang X M, Deng Y L, Zhang Y., Acta Metallurgica Sinica, 51, 3, (2015)

[2]

Liu B, Peng C Q, Wang R C, Et al., The Chinese Journal of Nonferrous Metals, 20, 9, (2010)

[3]

Hu B W, Huang C P, Xia C, Et al., The Chinese Journal of Nonferrous Metals, 29, 3, (2019)

[4]

Zhen Y Q, Liu X C, Shen Z K, Et al., Journal of Mechanical Engineering, 56, 6, (2020)

[5]

Dai Q L, Wang X Y, Hou Z G, Et al., Transactions of the China Welding Institution, 36, 8, (2015)

[6]

Wang X J, Sun G P, Zhang J, Et al., The Chinese Journal of Nonferrous Metals, 19, 3, (2009)

[7]

Palanivel R, Mathews P K, Murugan N., Journal of Central South University, 20, 11, (2013)

[8]

Rajakumar S, Balasubramanian V., Materials & Design, 40, (2012)

[9]

Shao Q F., Microstructure and mechanical properties of onion ring of aluminum alloy 7050 friction stir welded joints

[10]

Ke L M, Pan J L, Xing L, Et al., Journal of Materials Engineering, 4, (2008)

← 1 2 3 →