Effects of Zr-based Amorphous Alloy Interlayer on Microstructure and Properties of Al/TA1 Dissimilar Metals Electron Beam Welded Joints
CHEN Lei1, XU Rongzheng1, ZHANG Li1, LIU Yaguang1, LI Zhengkun2, ZHANG Haifeng2, ZHANG Bo1,*
1 School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110136, China 2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Abstract: The main factors affecting the strength of titanium/aluminum dissimilar metal EBW are the type, distribution and thickness of brittle Ti-Al intermetallic compounds continuously distributed at the interface. This work focused on the EBW of TA1 titanium alloy and industrial high purity Al. The Zr52Cu32Ni6Al10 amorphous strip with the thickness of 40—45 μm was used as the preset interlayer. The effect of the addition of interlayer material on the microstructure and properties of the weldments were analyzed. The results show that the weld structure of Al/TA1 weldments without interlayer is all composed of Ti-Al IMCs. The thickness of the IMCs layer is 1—1.5 mm. The tensile strength of the welded joint is only 40.5 MPa, and the fracture mode is brittle fracture. However, after introducing Zr-based metallic glass interlayer, a continuous IMCs layer with the thickness of 3—5 μm is formed on the TA1 side. On the Al side, there are only dispersed IMCs, but no continuous reaction layer is generated in the melting zone. The tensile strength of the weldment is 90.9 MPa, reaching about 94% of the strength of Al base metal. The tensile fracture is located near the Al side, which is near the weld zone, and there is obvious necking at the fracture, showing the characteristics of ductile fracture.
1 Guo S, Peng Y, Cui C, et al. Vacuum, 2018, 154, 58. 2 Chen S H, Huo X C, Guo C X, et al. Journal of Materials Processing Technology, 2019, 263, 73. 3 Casalino G, Mortello M, Peyre P. Journal of Materials Processing Technology, 2015, 223, 139. 4 Casalino G, Sonia D, Pasquale G, et al. Materials, 2018, 11, 2337. 5 Tomashchuk I, Sallamand P, Cicala E, et al. Journal of Materials Processing Technology, 2015, 217, 96. 6 Malikov A, Vitoshkin I, Orishich A, et al. Optics and Laser Technology, 2020, 126, 1. 7 Tomashchuk I, Sallamand P, Méasson A, et al. Journal of Materials Processing Technology. 2017, 245, 24. 8 Wang G Y, Liaw P K, Morrison M L. Intermetallics, 2009, 17, 579. 9 Shoji T, Kawamura Y, Ohno Y. Materials Transactions, 2003, 44, 1809. 10 Swiston A J, Hufnagel T C, Weihs T P. Scripta Materialia, 2003, 48, 1575. 11 Wang D Z, Li N, Liu L. Intermetallics, 2018, 93, 180. 12 Liang H L, Luo N, Li X J, et al. Journal of Manufacturing Processes, 2019, 45, 115. 13 Jonghyun K, Kawamura Y. Scripta Metallurgica, 2006, 56, 709. 14 Boroński D, Kotyk M, Maćkowiak P. Procedia Structural Integrity, 2016, 2, 3764. 15 Kar A, Choudhury S K, Suwas S, et al. Materials Characterization, 2018, 145, 402. 16 Dong Y W, Li X L, Zhao Q, et al. Journal of Materials Processing Technology, 2017, 244, 190. 17 Guo S, Peng Y, Zhu J, et al. Chinese Journal of Lasers, 2018, 45(11), 102(in Chinese). 郭顺, 彭勇, 朱军,等. 中国激光, 2018, 45(11), 102. 18 Chen X, Lei Z L, Chen Y B, et al. Journal of Manufacturing Processes, 2020, 56, 19. 19 Zhang Y X, Zhao H D, Zhu L, et al. Chinese Journal of Materials Research, 2021, 35(3), 209(in Chinese). 张云翔, 赵海东, 朱霖,等. 材料研究学报, 2021, 35(3), 209. 20 Li L, Delaey L, Wollants P, et al. Journal de Chimie Physique et de Physico-Chimie Biologique, 1993, 90, 175. 21 Takeuchi A, Inoue A. Materials Transactions, 2005, 46, 2817. 22 Wu A P, Song Z H, Nakata K, et al. Materials and Design, 2014, 71, 85. 23 Chen Y B, Chen S H, Li L Q. Materials and Design, 2010, 31, 227. 24 Song Z H, Nakata K, Wu A P, et al. Materials Science and Engineering A, 2013,560,111.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2023, Vol. 37 
