Effect of microstructure and mechanical properties on Al-Cu welding-brazing joint assisted by longitudinal DC magnetic field

DENG Chengmin; CHENG Donghai; ZHANG Hua; FANG Yuanfang; RONG Yi; WANG Long

doi:10.12073/j.hjxb.20200602003

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(10): 23-27. > DOI: 10.12073/j.hjxb.20200602003

DENG Chengmin, CHENG Donghai, ZHANG Hua, FANG Yuanfang, RONG Yi, WANG Long. Effect of microstructure and mechanical properties on Al-Cu welding-brazing joint assisted by longitudinal DC magnetic field[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(10): 23-27. DOI: 10.12073/j.hjxb.20200602003

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Effect of microstructure and mechanical properties on Al-Cu welding-brazing joint assisted by longitudinal DC magnetic field

1.
Beijing Institute of Petrochemical Technology, Beijing, 102617, China
2.
Beijing Academy of Safety engineering and Technology, Beijing, 102617, China
3.
Nanchang Hangkong University, Nanchang, 330063, China

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Received Date: June 01, 2020
Available Online: October 20, 2020

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Abstract

Abstract

TIG welding was used for butt welding of aluminum copper dissimilar materials. By adding Zn-2%Al flux cored wire to control the composition of the weld, and by adding longitudinal DC magnetic field to control the interface structure, the mechanical properties of the joint were improved. The results show that, compared with no magnetic field, the shape, thickness and compound types of IMC layer on the Cu side change under the action of longitudinal DC magnetic field: the average thickness of IMC layer decreases from 32.8 μm to 14.6 μm; the shape changes from straight to curved, which plays a role of “mechanical occlusion”; the appearance of ternary compound Al_4.2Cu_3.2Zn_0.7 in IMC layer on Cu side inhibits the growth of hard and brittle AlCu and Al₂Cu compounds, and improves the joint performance. After adding DC magnetic field, the joint tensile strength is higher than that without magnetic field, and the joint tensile strength increases first and then decreases with the increase of magnetic field strength. When welding current I = 95 A, welding voltage U = 16 V, welding speed v = 140 mm/min and magnetic field strength B = 10 mT, the tensile strength of the joint is the highest, reaching 110.8 MPa, which is about 24% higher than that without magnetic field.
- longitudinal direct current magnetic field,
- interface structure,
- mechanical occlusion,
- magnetic field strength

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References (20)

References

Zhou L, Li Z Y, Zhao H Y, et al. Microstructure and mechanical properties of TIG brazed joints of aluminium/brass dissimilar metals[J]. Chinese Journal of Nonferrous Metals, 2015, 25(9): 2389 − 2395.

Choudhury T, Ghorai A, Medhi T, et al. Study of microstructure and mechanical properties in friction stir welded aluminum copper lap joint[J]. Materials Today: Proceedings, 2020. https://doi.org/10.1016/j.matpr.2020.03.238.

Li G H, Zhou L, Shu F Y, et al. Statistical and metallurgical analysis of dissimilar friction stir spot welded aluminum/copper metals[J]. Journal of Materials Engineering and Performance, 2020, 29(3): 1830 − 1840. doi: 10.1007/s11665-020-04729-6

Anbukkarasi R, Kailas S V. Influences of shape of the new interfaces and morphology of the intermetallics on mechanical properties of aluminum AA2024-pure copper joints by friction stir welding[J]. The International Journal of Advanced Manufacturing Technology, 2020, 106(11): 5071 − 5083.

刘彦峰, 周春生, 王献辉, 等. T2紫铜/2A12硬铝双金属复合材料的扩散连接[J]. 材料热处理学报, 2017, 38(2): 15 − 20.

Liu Yanfeng, Zhou Chunsheng, Wang Xianhui, et al. Preparation of T2 copper/2A12 duralumin bimetallic composites by diffusion bonding[J]. Transactions of Materials and Heat Treatment, 2017, 38(2): 15 − 20.

Mathivanan K, Plapper P. Laser welding of dissimilar copper and aluminum sheets by shaping the laser pulses[J]. Procedia Manufacturing, 2019, 36: 154 − 162. doi: 10.1016/j.promfg.2019.08.021

Shankar S, Chattopadhyaya S. Friction stir welding of commercially pure copper and 1050 aluminum alloys[J]. Materials Today: Proceedings, 2020, 25: 664 − 667. doi: 10.1016/j.matpr.2019.07.719

周利, 李志勇, 赵洪运, 等. 铝/黄铜异种金属TIG填丝熔钎焊工艺[J]. 焊接学报, 2016, 37(12): 17 − 20.

Zhou Li, Li Zhiyong, Zhao Hongyun, et al. TIG welding-brazing for Al/Cu dissimilar metals using filler material[J]. Transactions of the China Welding Institution, 2016, 37(12): 17 − 20.

Zhang Y, Li Y, Luo Z, et al. Feasibility study of dissimilar joining of aluminum alloy 5052 to pure copper via thermo-compensated resistance spot welding[J]. Materials & Design, 2016, 106: 235 − 246.

彭迟, 程东海, 陈益平, 等. 铝/铜异种材料等离子弧熔钎焊搭接接头工艺分析[J]. 焊接学报, 2016, 37(4): 65 − 68.

Peng Chi, Cheng Donghai, Chen Yiping, et al. Analysis process of plasma arc melting brazing lap joint of dissimilar materials of aluminum and copper[J]. Transactions of the China Welding Institution, 2016, 37(4): 65 − 68.

Yang C, Jiang S Y, Bi H B. Numerical simulation study of metal transfer in MIG welding with magnetic control[J]. Applied Mechanics and Materials, 2014, 532: 545 − 548. doi: 10.4028/www.scientific.net/AMM.532.545

Chen S J, Liu C H, Yu Y, et al. Influence of preset pulsed magnetic field on process stability of short circuiting transfer in gas metal arc welding[J]. Advanced Materials Research, 2011, 339: 440 − 443. doi: 10.4028/www.scientific.net/AMR.339.440

Sun Q, Li J, Liu Y, et al. Arc characteristics and droplet transfer process in CMT welding with a magnetic field[J]. Journal of Manufacturing Processes, 2018, 32: 48 − 56. doi: 10.1016/j.jmapro.2018.01.017

Chang Y L, Liu X L, Lu L, et al. Impacts of external longitudinal magnetic field on arc plasma and droplet during short-circuit GMAW[J]. International Journal of Advanced Manufacturing Technology, 2014, 70(9−12): 1543 − 1553. doi: 10.1007/s00170-013-5403-1

高亚楠. 纵向磁场作用下高速TIG焊接电弧行为及焊缝成形机理研究[D]. 沈阳: 沈阳工业大学, 2012.

Gao Yanan. Research on high-speed TIG welding arc behavior and weld formation mechanism under longitudinal magnetic fields [D]. Shenyang: Shenyang University of Technology, 2012.

殷咸青, 罗键, 李海刚. 纵向磁场参数对LD10CS铝合金TIG焊焊缝组织的影响[J]. 西安交通大学学报, 1999, 7: 73 − 76. doi: 10.3321/j.issn:0253-987X.1999.12.019

Yin Xianqing, Luo Jian, Li Haigang. Optimization of magnetic parameters for grain structure refinement of LD10CS aluminum alloy weldment[J]. Journal of Xi'an Jiaotong University, 1999, 7: 73 − 76. doi: 10.3321/j.issn:0253-987X.1999.12.019

国旭明, 杨成刚. 磁搅拌对铝铜合金MIG焊缝形状、组织及性能影响[J]. 航空材料学报, 2007, 2: 18 − 21. doi: 10.3969/j.issn.1005-5053.2007.02.004

Guo Xuming, Yang Chenggang. Effect of electromagneticstirring on the shape structure and mechanical properties of Al-Cu alloy MIG weld[J]. Journal of Aeronautical Materials, 2007, 2: 18 − 21. doi: 10.3969/j.issn.1005-5053.2007.02.004

Hicken G K, Jackson C E. Effects of applied magnetic fields on welding arcs[J]. Welding Journal, 1996, 45(8): 513 − 518.

Abralov M A, Abdurakhmanov R U, Iuldashev A T. The effects of electro-magnetic action on the properties and structure of welded joints in the 01420 alloys[J]. Automatic Welding, 1977, 30(5): 52 − 55.

Chen R, Wang C, Jiang P, et al. Effect of axial magnetic field in the laser beam welding of stainless steel to aluminum alloy[J]. Materials and Design, 2016, 109: 146 − 152. doi: 10.1016/j.matdes.2016.07.064

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