搅拌摩擦焊接ZK60镁合金弯曲性能与断裂行为研究

doi:10.11896/cldb.18070039

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Abstract Severe plastic deformation is occurred in weld zone during friction stir welding, which causes significant changes of microstructure and mechanical properties of the joints. But few studies are found on the bending properties of friction stir welded Mg alloys. In this paper, casting ZK60 Mg alloy in solid solution state was used as the research object. Two types of three-point bending tests, including surface test and root test, were used to explore the effect of microstructure evolution of ZK60 Mg alloy during friction stir welding on the bending strength and fracture beha-vior. It is found that significant grain refinement is observed in weld zone, and the average grain size is reduced from ~59 μm to ~4 μm. Friction stir welded ZK60 Mg alloy presents higher bending properties than that of the base metal sample. And the bending strength of surface test sample is higher than that of the root test sample. After a large deflection-strain bending test, both the base metal and surface test samples are cracked. But crack initiation and expansion is not observed in the root test sample. It is considered that abrupt change of texture at the boundary of transition zone/stir zone has little effect on the fracture behavior of friction stir welded ZK60 Mg alloy during bending tests.

Key words： friction stir welding ZK60 Mg alloy bending strength fracture behavior microstructure

Published: 15 January 2020

CLC number:

TG453

About author:: Xiangjie Wangreceived his Ph. D. degree in mate-rials science and engineering from the Chongqing University in Sep. 2008—Jun. 2013 and served in Mechanical and Electrical Engineering, Hubei Polytechnic University till now. He has published more than 20 journal papers as the first author, applied 5 national invention patents and 2 of them were authorized. His research interests focus on the welding, casting and corrosion resistance of magnesium alloy. He presided over the project including the National Natural Science Foundation of China Youth Project, the Natural Science Foundation of Hubei Province, the Ministry of Education of Hubei Province and the Central University of Science and Technology Outstanding Graduate Students, etc.

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	WANG Xiangjie
	FENG Lei
	WU Jingting
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	SU Beibei

Cite this article:

WANG Xiangjie,FENG Lei,WU Jingting, et al. Study of Bending Strength and Fracture Behavior of ZK60 Mg Alloy Welded by Friction Stir Welding[J]. Materials Reports, 2020, 34(4): 4083-4086.

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http://www.mater-rep.com/EN/10.11896/cldb.18070039 OR http://www.mater-rep.com/EN/Y2020/V34/I4/4083

1 Wang K S, Zhou L H, Wu J L, et al. Rare Metal Materials and Engineering, 2012(6), 1111(in Chinese).
王快社,周龙海,武佳蕾,等.稀有金属材料与工程,2012(6),1111.
2 Chen Y, Quan G F, Shen C B, et al. Materials Review, 2008, 22 (Z2), 346(in Chinese).
陈影, 权高峰, 沈长斌,等.材料导报, 2008, 22 (专辑12), 346.
3 Liu D J, Xin R L, Zhao L Z, et al. Science and Technology of Welding and Joining, 2017,22(1), 1.
4 Liu Z, Liu D J, Xu J, et al. Science and Technology of Welding and Joining, 2015, 20(3), 264.
5 Cavaliere P, Marco P P D. Journal of Materials Science,2006,41,3459.
6 Mishra R S, Ma Z Y. Materials Science and Engineering: R: Reports, 2005, 50 (1-2), 1.
7 Albakri A N, Mansoor B, Nassar H, et al. Journal of Materials Proces-sing Technology, 2013, 213 (2), 279.
8 Luo C, Song D F, Li Y J, et al. Heat Treatment of Metals,2017, 42(5), 127(in Chinese).
罗畅, 宋东福, 李亚江, 等.金属热处理, 2017, 42(5), 127.
9 Ke L M, Xing L, Xu W P. Journal of Materials Engineering, 2005(1), 41(in Chinese).
柯黎明, 邢丽, 徐卫平.材料工程, 2005(1), 41.
10 Zhang H, Lin S B, Wu L, et al. Transactions of the China Welding Institution, 2003, 24 (5), 65(in Chinese).
张华, 林三宝, 吴林, 等.焊接学报, 2003, 24 (5), 65.
11 Liu D J, Xin R L, Zheng X, et al. Materials Science and Engineering: A, 2013, 561, 419.
12 Liu D J, Xin R L, Sun L Y, et al. Materials Science and Engineering: A, 2013, 576, 207.
13 Xin R L, Liu D J, Xu Z R, et al. Materials Science and Engineering: A, 2013, 582, 178.
14 Huang G S, Wang L F, Zhang H, et al. Materials Letters,2013,98,47.
15 Liu D J, Xin R L, Li Z Y, et al. Materials Science and Engineering: A, 2015, 646, 145.
16 Liu D J, Xin R L, Zhao L Z, et al. Journal of Alloys and Compounds, 2017, 693,808.
17 Orlov D, Raab G, Lamark T T, et al. Acta Materialia,2011,59,375.
18 Mironov S, Motohashi Y, Ito T, et al. Materials Transactions, 2007, 48 (12), 3140.
19 You G Q, Zhang J C, Tan X. Journal of Materials Engineering, 2014(2), 29(in Chinese).
游国强, 张均成, 谭霞.材料工程, 2014, (2), 29.
20 Liu Z L, Cui K T, Ji S D, et al. Transactions of the China Welding Institution, 2016, 37(6), 23(in Chinese).
刘震磊, 崔祜涛, 姬书得, 等.焊接学报, 2016, 37(6), 23.
21 Zhang H, Lin S B, Wu L, et al. Rare Metal Materials and Engineering, 2005(7), 1021(in Chinese).
张华, 林三宝, 吴林, 等.稀有金属材料与工程, 2005(7), 1021.
22 Chang C I, Du X H, Huang J C. Scripta Materialia, 2007,57,209.
23 Hu C M, Lai C M, Kao P W, et al. Materials Characterization, 2010, 61 (11), 1043.
24 Prangnell P B, Heason C P. Acta Materialia, 2005, 53(11), 3179.
25 Liu Z, Xin R L, Liu D J, et al. Materials Science and Engineering: A, 2016, 658, 185.
26 Xie G M, Ma Z Y, Geng L. Acta Metallurgica Sinica, 2008, 44 (6), 665(in Chinese).
谢广明, 马宗义, 耿林.金属学报, 2008, 44(6), 665.
27 Carbajal N, Mujika F. Polymer Testing, 2009, 28(2), 150.
28 Song B, Xin R L, Sun L Y, et al. Materials Science and Engineering: A, 2013, 582, 68.
29 Barnett M R. Scripta Materialia, 2008, 59(7), 696.