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2222材料工程  2018, Vol. 46 Issue (3): 55-60    DOI: 10.11868/j.issn.1001-4381.2016.000426
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
搅拌摩擦焊辅助Al/Zn/Mg接头扩散连接
金玉花(), 甘瑞根, 陈飞, 邵庆丰, 王希靖, 郭廷彪
兰州理工大学 甘肃省有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050
Friction Stir Welding-assisted Diffusion Bond of Al/Zn/Mg Lap Joint
Yu-hua JIN(), Rui-gen GAN, Fei CHEN, Qing-feng SHAO, Xi-jing WANG, Ting-biao GUO
State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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摘要 

对2mm厚的AZ31B镁合金和6061铝合金平板进行添加夹层Zn的搅拌摩擦诱导扩散连接实验。通过SEM,EPMA,XRD,拉伸实验和维氏硬度测试研究Al/Zn/Mg搭接接头显微组织和力学性能。结果表明:当旋转速率合适时,扩散层存在Al富集区,Al5Mg11Zn4层及Mg-Zn共晶区;而旋转速率较低时,扩散层存在残留的Zn层;旋转速率过大时,扩散层出现Al-Mg系金属间化合物。由于扩散层主要为金属间化合物,其显微硬度明显高于母材。Zn箔的加入提高了Al/Mg搭接接头的力学性能。断口观察分析表明,接头失效发生在靠近Al侧的扩散层上。

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金玉花
甘瑞根
陈飞
邵庆丰
王希靖
郭廷彪
关键词 镁合金铝合金锌夹层搅拌摩擦扩散连接断裂载荷    
Abstract

Dissimilar materials welding between 2mm-thick AZ31B Mg alloy and 6061 Al alloy plates in overlap form was performed using the friction stir-induced diffusion bond with zinc foil as the interlayer. The microstructure and mechanical properties of the Al/Zn/Mg lap joints were analyzed by means of SEM, EPMA, XRD, tensile experiment and Vickers hardness test. The results show that diffusion layer consists of Al enrichment zone, Al5Mg11Zn4 layer and Mg-Zn eutectic zone at proper rotation speed; however, when rotation speed is low, the residual zinc interlayer remains in the diffusion layer; when rotation speed is high, the Al-Mg intermetallic compounds are present again. Due to the existence of intermetallic compounds in diffusion layer, its microhardness is significantly higher than that of base metal. The addition of zinc foil can improve the mechanical properties of Al/Mg lap joints. According to analysis on the fracture, joint failure occurs in the diffusion layer near to Al side.

Key wordsMg alloy    Al alloy    zinc interlayer    friction stir welding    diffusion bond    failure load
收稿日期: 2016-04-11      出版日期: 2018-03-20
中图分类号:  TG457  
基金资助:国家自然科学基金项目(51265030);2013年甘肃省高等学校基本科研业务费(01-0071);2013年兰州理工大学博士基金(01-0765)
通讯作者: 金玉花     E-mail: yhjin8686@163.com
作者简介: 金玉花(1971-), 女, 博士, 副教授, 硕士研究生导师, 主要从事有色金属连接技术的科研与教学工作, 联系地址:甘肃省兰州市兰工坪287号兰州理工大学材料科学与工程学院(730050), E-mail: yhjin8686@163.com
引用本文:   
金玉花, 甘瑞根, 陈飞, 邵庆丰, 王希靖, 郭廷彪. 搅拌摩擦焊辅助Al/Zn/Mg接头扩散连接[J]. 材料工程, 2018, 46(3): 55-60.
Yu-hua JIN, Rui-gen GAN, Fei CHEN, Qing-feng SHAO, Xi-jing WANG, Ting-biao GUO. Friction Stir Welding-assisted Diffusion Bond of Al/Zn/Mg Lap Joint. Journal of Materials Engineering, 2018, 46(3): 55-60.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.000426      或      http://jme.biam.ac.cn/CN/Y2018/V46/I3/55
Fig.1  搅拌摩擦辅助Al/Zn/Mg接头扩散搭接示意图
Fig.2  不同参数下Al/Zn/Mg搭接接头横截面宏观形貌
(a)600r/min;(b)1000r/min;(c)1400r/min
Fig.3  不同区域的扩散层微观组织形貌
(a)区域1;(b)区域2;(c)区域3;(d)区域4;(e)区域5;(f)区域6
Point Al Mg Zn Phase
A 2.64 12.14 85.22 Zn rich phase
B 29.23 42.55 28.22 Al5Mg11Zn4
C 6.86 60.91 32.23 Mg-Zn eutectic phase
D 7.21 49.33 43.55 MgZn
E 50.46 8.11 41.43 Al rich phase
F 60.07 22.34 17.59 Al rich phase
G 30.12 44.76 25.12 Al5Mg11Zn4
H 6.45 63.44 30.11 Mg-Zn eutectic phase
I 62.34 34.04 3.62 Al3Mg2
J 31.02 61.12 7.86 Al12Mg17
K 34.85 61.32 3.83 Al12Mg17
L 17.19 54.96 27.85 MgZn2+Mg rich phase
M 5.82 63.32 30.86 Mg-Zn eutectic phase
N 86.67 3.48 9.85 Al rich phase
Table 1  不同区域各点的成分(原子分数/%)
Fig.4  Al/Zn/Mg搭接接头扩散层线扫描
Fig.5  Al/Zn/Mg搭接接头显微硬度分布
Fig.6  不同参数下Al/Zn/Mg搭接接头断裂载荷
Fig.7  有Zn层与无Zn层的Al/Mg搭接接头负载-变形曲线
Fig.8  接头断口形貌组织
(a)Al侧;(b)Mg侧
Fig.9  接头断口XRD分析结果
(a)Al侧;(b)Mg侧
1 MOHAMMADI J , BEHNAMIAN Y , MOSTAFAE A , et al. Friction stir welding joint of dissimilar materials between AZ31B magnesium and 6061 aluminum alloys:microstructure studies and mechanical characterizations[J]. Materials Characterization, 2015, 101, 189- 207.
doi: 10.1016/j.matchar.2015.01.008
2 YAMAMOTO N , LIAO J , WATANABE S , et al. Effect of intermetallic compound layer on tensile strength of dissimilar friction-stir weld of a high strength Mg alloy and Al alloy[J]. Materials Transactions, 2009, 50 (12): 2833- 2838.
doi: 10.2320/matertrans.M2009289
3 刘政军, 宫颖, 苏允海. 镁铝异种金属TIG焊接头性能的研究[J]. 材料工程, 2015, 43 (3): 18- 22.
doi: 10.11868/j.issn.1001-4381.2015.03.004
3 LIU Z J , GONG Y , SU Y H . Study on characteristics in TIG welded joint of Mg/Al dissimilar materials[J]. Journal of Materials Engineering, 2015, 43 (3): 18- 22.
doi: 10.11868/j.issn.1001-4381.2015.03.004
4 GAO M , MEI S , LI X , et al. Characterization and formation mechanism of laser-welded Mg and Al alloys using Ti interlayer[J]. Scripta Materialia, 2012, 67 (2): 193- 196.
doi: 10.1016/j.scriptamat.2012.04.015
5 ZHANG H T , SONG J Q . Microstructural evolution of aluminum/magnesium lap joints welded using MIG process with zinc foil as an interlayer[J]. Materials Letters, 2011, 65 (21): 3292- 3294.
6 周惦武, 田伟, 彭利, 等. 镀锌钢/铝添加中间夹层Cu, Pb的激光搭接焊研究[J]. 稀有金属材料与工程, 2014, 43 (5): 1181- 1186.
6 ZHOU D W , TIAN W , PENG L , et al. Laser lap welding of steel and aluminum alloy with Cu, Pb metal sandwich addition[J]. Rare Metal Materials and Engineering, 2014, 43 (5): 1181- 1186.
7 ZHANG Y , LUO Z , LI Y , et al. Microstructure characterization and tensile properties of Mg/Al dissimilar joints manufactured by thermo-compensated resistance spot welding with Zn interlayer[J]. Materials & Design, 2015, 75, 166- 173.
8 SUN M , NIKNEJAD S T , ZHANG G , et al. Microstructure and mechanical properties of resistance spot welded AZ31/AA5754 using a nickel interlayer[J]. Materials & Design, 2015, 87, 905- 913.
9 LIU L M , ZHAO L M , XU R Z . Effect of interlayer composition on the microstructure and strength of diffusion bonded Mg/Al joint[J]. Materials & Design, 2009, 30 (10): 4548- 4551.
10 WANG Y , LUO G , ZGHANG J , et al. Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints[J]. Journal of Alloys and Compounds, 2012, 541, 458- 461.
doi: 10.1016/j.jallcom.2012.06.120
11 赵丽敏, 刘黎明, 徐荣正, 等. 镁合金与铝合金的夹层扩散焊连接[J]. 焊接学报, 2007, 28 (10): 9- 12.
doi: 10.3321/j.issn:0253-360x.2007.10.003
11 ZHAO L M , LIU L M , XU R Z , et al. Diffusion bonding of Mg/Al alloy with Zn interlayer metal[J]. Transaction of the China Welding Institution, 2007, 28 (10): 9- 12.
doi: 10.3321/j.issn:0253-360x.2007.10.003
12 MESHRAME S D , REDDY G M . Friction welding of AA6061 to AISI 4340 using silver interlayer[J]. Defence Technology, 2015, 11 (3): 292- 298.
doi: 10.1016/j.dt.2015.05.007
13 PATEL V K , BHOLE S D , CHEN D L . Improving weld strength of magnesium to aluminium dissimilar joints via tin interlayer during ultrasonic spot welding[J]. Science and Technology of Welding and Joining, 2012, 17 (5): 342- 347.
doi: 10.1179/1362171812Y.0000000013
14 ROSENTHAL I , MIRIYEY A , TUVAL E , et al. Characterization of explosion-bonded Ti-Alloy/steel plate with Ni interlayer[J]. Metallography, Microstructure, and Analysis, 2014, 3 (2): 97- 103.
doi: 10.1007/s13632-014-0120-1
15 PATEL V K , BHOLE S D , CHEN D L . Formation of zinc interlayer texture during dissimilar ultrasonic spot welding of magnesium and high strength low alloy steel[J]. Materials & Design, 2013, 45, 236- 240.
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