添加Ni中间层镁/钢激光熔钎焊接头的组织和性能

doi:10.11896/cldb.20080306

Abstract
Figure/Table
References
Related Citation (1)

Download:

Full Text ( PDF ) (9220KB)
Export: BibTeX | EndNote (RIS)

Abstract Laser welding-brazing lap joint test of AZ31B magnesium alloy plate and Q235 low carbon steel was carried out by adding 0.1 mm Ni sheet. The macroscopic morphology, element distribution, microstructure and mechanical properties of the joints were analyzed after adding Ni intermediate layer. The results showed that the welding-brazing joint with Ni intermediate layer was well formed. The weld consists of a Mg side weld zone, an intermetallic compound (IMC) layer, and a steel side weld zone. According to the element distribution, the addition of Ni intermediate layer resulted in the phenomenon of Mg element downward and Fe element upward diffusion in the IMC layer. Further study revealed that the Mg side weld zone of the joint was mainly composed of α-Mg+β-Mg₁₇Al₁₂. The IMC layer is composed of Mg₂Ni, AlNi phase and (α-Mg +Mg₂Ni)eutectic structure. The steel side weld zone was composed of Fe-Ni solid solution. The dendritic Mg₂Ni in the IMC layer achieved a certain mechanical bite effect. At the same time, AlNi phase has a strengthening effect on the welding-brazing joint, which enhances the mechanical properties of the joint. With the increase of energy input, the tensile shear strength tends to increase first and then decrease. When P=1 250 W, V=20 mm·s^-1, energy input Q=625 J·cm^-1, the tensile-shear strength of magnesium steel joint with Ni intermediate layer was the highest, reaching 198 MPa.

Key words： laser welding-brazing IMC layer mechanical interlocking strengthening effect

Published: 30 September 2021

CLC number:

TG442

Fund:This work was financially supported by the National Natural Science Foundation of China (51965045), Natural Science Foundation of Jiangxi Province (20202ACBL214003), Doctoral Initiation Fund Project of Nanchang Hangkong University (2030009401073).

About author:: Yi Rong is a postgraduate student in the department of Welding Engineering at Nanchang Hangkong University, her main research direction is dissimilar metal materials welding.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	RONG Yi
	WANG De
	CHEN Yiping
	XIONG Zhenyu
	CHENG Donghai
	HU De'an
	ZOU Pengyuan
	LIU Zhaoze

Cite this article:

RONG Yi,WANG De,CHEN Yiping, et al. Study on Microstructure and Properties of Magnesium/Steel Laser Welding-brazing Joint with Ni Intermediate Layer[J]. Materials Reports, 2021, 35(18): 18136-18140.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20080306 OR http://www.mater-rep.com/EN/Y2021/V35/I18/18136

1 Kim Y S, Zhang S, Paik K W. Journal of the Microelectronics and Packaging Society, 2015, 22(1), 35.
2 Zhang S, Kim S H, Kim T W,et al. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2015, 5(1), 9.
3 Lyu W Q, Wang J C, Yang Y S, et al. Materials Reports A:Review Papers, 2012, 26(3), 109(in Chinese).
吕文泉, 王锦程, 杨跃双, 等. 材料导报:综述篇, 2012,26(3), 109.
4 Aghion E, Bronfin B, Eliezer D. Journal of Materials Processing Techno-logy, 2001, 117(3), 381.
5 Tan Z, Liu J S, Zhou D W, et al. The Chinese Journal of Nonferrous Metals, 2016, 26(7), 1427(in Chinese).
谭哲, 刘金水, 周惦武, 等. 中国有色金属学报, 2016, 26(7), 1427.
6 Wahba M, Katayama S. Materials and Design, 2012, 35, 701.
7 Tan C W, Xiao L Y, Liu F Y, et al. Journal of Materials Engineering and Performance, 2017, 26(6), 2983.
8 Ali M N. Metallurgical and Materials Transactions A, 2013, 44(4), 1937.
9 Koba M, Araki T, Nambu S, et al. Metallurgical and Materials Transactions A, 2012, 43(2), 592.
10 Chen Y P, Shao J H, Hu D A, et al. Transactions of the China Welding Instition, 2013, 34(4), 101(in Chinese).
陈益平, 邵景辉, 胡德安, 等. 焊接学报, 2013, 34(4), 101.
11 Miao Y G, Wu B,Xu X F, et al. Acta Metallurgica Sinica (English Letters), 2014, 27(6), 1038.
12 Windmann M, Röttger A, Kügler H, et al. International Journal of Advanced Manufacturing Technology, 2016, 87(9-12), 3149.
13 Song G, Wang J, Yu J W, et al. Transactions of the China Welding Instition, 2016(5), 69(in Chinese).
宋刚, 王杰, 于景威, 等. 焊接学报, 2016(5), 69.
14 Liu L , Qi X. Journal of Materials Science, 2009, 44(21), 5725.
15 Liu L, Qi X, Wu Z. Materials Letters, 2010, 64(1), 89.
16 Miao Y G, Wu B T, Xu X F, et al. Acta Metallurgica Sinica (English Letters), 2014, 27(6), 1038.
17 Niu R F, Lin B H, Wang Y N. Transactions of the China Welding Institution, 2010, 31(3), 81.
18 Xu X. Research on the interface chemical reaction metallurgy between magnesium alloy and steel laser brazing. Master's Thesis, Jiangsu University of Science and Technology, China, 2018 (in Chinese).
许欣. 镁合金与钢激光熔钎焊界面化学反应冶金研究. 硕士学位论文, 江苏科技大学, 2018.
19 Tan C W. Research on the characteristics of magnesium/steel laser soldering and the control technology of interfacial alloy. Master's Thesis, Harbin Institute of Technology, China, 2014 (in Chinese).
檀财旺. 镁/钢激光熔钎焊接特性及界面合金调控技术研究. 硕士学位论文,哈尔滨工业大学, 2014.