搅拌摩擦焊接Mg-6Al-1Sn合金组织与性能研究*

doi:10.11896/j.issn.1005-023X.2017.022.016

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (770KB)
Export: BibTeX | EndNote (RIS)

Abstract Mg-6Al-1Sn (AT61) magnesium alloy plates were successfully friction stir welded (FSW). The effect of different parameters on microstructure and properties were investigated. The results showed that the sound welded joints were obtained at the constant rotational rate of 1 200 r/min when the welding speed ranged from 60—180 mm/min and at the constant welding speed of 180 mm/min when the rotational rates ranged from 1 200—1 600 r/min, the best joint efficiency (i.e., a ratio of the UTS of joint to the UTS of BM) was 88%, and the hydrogen rate in nugget zone (NZ) was lower than base material (BM), but the electrochemistry performance was reduced. It was found that only Al8Mn5 phase was observed in BM, no Mg2Sn phase was detected. Compared with BM in microstructure, the type of secondary precipitates were insensitive to different welding parameters, and the distribution of secondary precipitates were transformed from strips into particles.

Key words： AT61 magnesium alloy friction stir welding microstructure properties

Published: 08 May 2018

CLC number:	TG146.2+2
	TG113.26+3

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YE Junhua
	TANG Aitao
	MA Shida
	CHEN Qiaowang
	WANG Yurong
	XU Anlian

Cite this article:

YE Junhua,TANG Aitao,MA Shida, et al. Microstructure and Properties of Mg-6Al-1Sn Alloy by Friction Stir Welding[J]. Materials Reports, 2017, 31(22): 79-84.

URL:

http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.022.016 OR http://www.mater-rep.com/EN/Y2017/V31/I22/79

1 Chowdhury S M, Chen D L, Bhole S D, et al. Effect of pin tool thread orientation on fatigue strength of friction stir welded AZ31B-H24 Mg butt joints[J]. Procedia Eng, 2010,2(1):825.
2 Luo A A. Magnesium casting technology for structural applications[J]. J Magnesium Alloys, 2013,1(1):2.
3 Yang J, Xiao B L, Wang D, et al. Effects of heat input on tensile properties and fracture behavior of friction stir welded Mg-3Al-1Zn alloy[J]. Mater Sci Eng A, 2010,527(3):708.
4 Ren Shurong, Ma Zongyi, Chen Liqing. Research status and prospect of friction stir welding and friction stir processing[J]. Mater Rev, 2007,21(1):86(in Chinese).
任淑荣,马宗义,陈礼清. 搅拌摩擦焊接及其加工研究现状与展望[J]. 材料导报, 2007,21(1):86.
5 Afrin N, Chen D L, Cao X, et al. Microstructure and tensile properties of friction stir welded AZ31B magnesium alloy[J]. Mater Sci Eng A, 2008,472(1-2):179.
6 Yang Suyuan, Zhang Baolei. Microstructures and mechanical properties of thick AZ31 magnesium alloy welded joint by friction stir welding[J]. Trans China Weld Inst, 2009,30(5):1(in Chinese).
杨素媛, 张保垒. 厚板AZ31镁合金搅拌摩擦焊焊接接头的组织与性能[J]. 焊接学报, 2009,30(5):1.
7 Zhang Hua, Wu Lin, Lin Sanbao, et al. Friction stir welding of AZ31 magnesium alloy[J]. Chin J Mech Eng, 2004,40(8):123(in Chinese).
张华,吴林,林三宝,等. AZ31镁合金搅拌摩擦焊研究[J]. 机械工程材料, 2004,40(8):123.
8 Xie G M, Ma Z Y, Geng L. Effect of microstructural evolution on mechanical properties of friction stir welded ZK60 alloy[J]. Mater Sci Eng A, 2008,486(1-2):49.
9 Xie G M, Ma Z Y, Geng L, et al. Microstructural evolution and mechanical properties of friction stir welded Mg-Zn-Y-Zr alloy[J]. Mater Sci Eng A, 2007,471(1-2):63.
10 Luo D, Wang H Y, Zhang L, et al. Microstructure evolution and tensile properties of hot rolled Mg-6Al-3Sn alloy sheet at elevated temperatures[J]. Mater Sci Eng A, 2015,643:149.
11 She J, Pan F S, Hu H H, et al. Microstructures and mechanical properties of as-extruded Mg-5Sn-1Zn-xAl(x=1, 3 and 5) alloys[J]. Progress Nat Sci: Mater Int, 2015,25(4):267.
12 She J, Pan F, Zhang J Y, et al. Microstructure and mechanical properties of Mg-Al-Sn extruded alloys[J]. J Alloys Compd, 2016,657:893.
13 Wang H Y, Zhang N, Wang C, et al. First-principles study of the generalized stacking fault energy in Mg-3Al-3Sn alloy[J]. Scripta Mater, 2011,65(8):723.
14 Pan F S, Xu A L, Deng D A, et al. Effects of friction stir welding on microstructure and mechanical properties of magnesium alloy Mg-5Al-3Sn[J]. Mater Des, 2016,110:266.
15 Pan F S, Xu A L, Ye J H, et al. Effects of rotation rate on microstructure and mechanical properties of friction stir-welded Mg-5Al-1Sn magnesium alloy[J]. Int J Adv Manuf Technol, 2016, doi:10.1007/s00170-016-9752-4.
16 Xu A L, Pan F S, Jiang X Q, et al. Microstructure and properties of friction stir welded Mg-1Al-xSn-0.3Mn magnesium alloys[J]. Mater Sci Forum, 2015,816:349.
17 Gou J, Tang A T, Pan F S, et al. Influence of Sn addition on mechanical properties of gas tungsten arc welded AM60 Mg alloy sheets[J]. Trans Nonferrous Met Soc China, 2016,26(8):2051.
18 Kumar K, Kailas S V. The role of friction stir welding tool on material flow and weld formation[J]. Mater Sci Eng A, 2008,485(1-2):367.
19 Mishra R S, Ma Z Y. Friction stir welding and processing[J]. Mater Sci Eng R: Rep, 2005,50(1-2):1.
20 Albakri A N, Mansoor B, Nassar H, et al. Thermo-mechanical and metallurgical aspects in friction stir processing of AZ31 Mg alloy—A numerical and experimental investigation[J]. J Mater Processing Technol, 2013,213(2):279.
21 Commin L, Dumont M, Masse J E, et al. Friction stir welding of AZ31 magnesium alloy rolled sheets: Influence of processing parameters[J]. Acta Mater, 2009,57(2):326.
22 Luo Chuanhong, Peng Weiping, Guo Lijie, et al. Performance of aluminum alloy 2219 joints welded by friction stir welding[J]. J Chongqing University of Technology (Natural Science), 2014(10):38(in chinese).
罗传红,彭卫平,郭立杰,等. 2219高强铝合金搅拌摩擦焊接头组织和性能分析[J]. 重庆理工大学学报(自然科学版), 2014(10):38.
23 Woo W, Choo H, Brown D W, et al. Texture variation and its influence on the tensile behavior of a friction-stir processed magnesium alloy[J]. Scripta Mater, 2006,54(11):1859.
24 Commin L, Dumont M, Rotinat R, et al. Influence of the microstructural changes and induced residual stresses on tensile properties of wrought magnesium alloy friction stir welds[J]. Mater Sci Eng A, 2012,551:288.
25 Park S H C, Sato Y S, Kokawa H. Effect of micro-texture on fracture location in friction stir weld of Mg alloy AZ61 during tensile test[J]. Scripta Mater, 2003,49(2):161.
26 Cao X, Jahazi M. Effect of welding speed on the quality of friction stir welded butt joints of a magnesium alloy[J]. Mater Des, 2009,30(6):2033.
27Zeng R C, Zhang J, Huang W J, et al. Review of studies on corrosion of magnesium alloys[J]. Trans Nonferrous Met Soc China, 2006,16(s1):S763.