Friction stir solid-liquid spot welding of Cu to Al assisted by Zn interlayer
Friction stir solid-liquid spot welding of Cu to Al assisted by Zn interlayer
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Zn夹层辅助Cu-Al搅拌摩擦固液点焊
DOI：
10.1016/j.jmrt.2022.02.067
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发表时间：
2022-02
期刊：
影响因子：
--
通讯作者：
Huaxia Zhao
中科院分区：
文献类型：
--
作者：
Hua Liu;Yingying Zuo;Shude Ji;Jihong Dong;Huaxia Zhao
接头性能较差制约了Cu/Al异种金属焊接结构的应用。为了获得高质量的铜/铝接头，提出了搅拌摩擦固液点焊方法。同时，采用了Zn中间层和三种不同长度的探针。辅助Zn中间层通过调节界面组织改善了接头质量。Cu/Al界面处的IMC层由Al4.2Cu3.2Zn0.7层和Al 2Cu层或αAl + Al 2Cu共晶层组成。长探针在搭接界面处产生的热量、压力和材料流动更强，而1.3mm探针下的IMCs层厚度最大，这是因为探针上残留的液相最多。在1.3mm探针下，加锌接头的最大拉剪载荷为6.64kN，比普通接头提高了0.51kN。接头均在搭接界面处断裂，但微观断裂方式多样。结合界面处的孔洞和裂纹缺陷影响了微断裂模式的断裂。
The relatively low joint performance restrains the application of Cu/Al dissimilar metals welding structure. In order to obtain a high-quality Cu/Al joint, the friction stir solid–liquid spot welding was proposed. At the same time, the Zn interlayer was used and three probes with different lengths were adopted. The assisted Zn interlayer improved the joint quality by regulating the interfacial microstructure. The IMCs layers at the bonding interface of Cu/Al were composed of Al4.2Cu3.2Zn0.7layer and Al2Cu layer or αAl + Al2Cu eutectic layer. The long probe produced more heat, larger pressure and stronger material flow at the lap interface, while the thickness of IMCs layer reached the maximum under the 1.3 mm-length probe because of the most residual liquid phase. Under the 1.3 mm-length probe, the maximum tensile shear load of the Zn-added joint was 6.64 kN, and this value was 0.51 kN bigger than that of conventional joint. The joints all fractured at the lap interface, but the fracture modes in micro-level were diversified. The hole and crack defects at the bonding interface influenced the micro-fracture mode fracture.
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DOI：
10.1007/s00170-020-06202-z
发表时间：
2020-10
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
A. Boucherit;S. Abdi;M. Aissani;B. Mehdi;K. Abib;R. Badji
通讯作者：
A. Boucherit;S. Abdi;M. Aissani;B. Mehdi;K. Abib;R. Badji
影响因子：
6.2
作者：
L. Zhou;G.H. Li;R.X. Zhang;W.L. Zhou;W. He;Y.X. Huang;X.G. Song
通讯作者：
L. Zhou;G.H. Li;R.X. Zhang;W.L. Zhou;W. He;Y.X. Huang;X.G. Song
超声辅助搅拌摩擦焊中锌中间层对铜/铝搭接接头的影响
影响因子：
2.3
作者：
Chen Shujin;Wang Di;Li Ruifeng;Liu Bin;Wang Jianxin
通讯作者：
Wang Jianxin
DOI：
10.1016/j.proeng.2016.12.209
发表时间：
2017
期刊：
Procedia Engineering
影响因子：
--
作者：
S. Siddharth;T. Senthilkumar
通讯作者：
S. Siddharth;T. Senthilkumar
DOI：
10.1016/j.jmrt.2019.02.015
发表时间：
2019-05
期刊：
Journal of Materials Research and Technology
影响因子：
--
作者：
Gao-hui Li;Li Zhou;Weilu Zhou;Xiaoguo Song;Yongxian Huang
通讯作者：
Gao-hui Li;Li Zhou;Weilu Zhou;Xiaoguo Song;Yongxian Huang