Prevention of Crack Formation in Electron-Beam Welded Joints of Dissimilar Metal Compounds (TiNi/Ti6Al4V)

  • Zilin ZhanEmail author
  • Yuhua Chen
  • Shanlin Wang
  • Yongde Huang
  • Yuqing Mao

The microstructure, mechanical properties and element distribution in an electron-beam welded joint of dissimilar metal compounds (TiNi/Ti6Al4V) have been studied. To prevent crack formation, niobium was introduced to the compound as a filler material. The welding line preheating and electron-beam deviation toward the Ti6Al4V alloy were used. It was shown that fracturing of the welded joint occurs within the fusion zone and is characterized by a mixed ductile-brittle behavior.

Key words

TiNi/Ti6Al4V welded joint electron-beam welding dissimilar materials cracking prevention 


This work was supported by the National Natural Science Foundation of China (Project 51565040), Aviation science funds (2014ZE56016), Jiangxi science and technology plan projects (20151 BBE50034), and State laboratory of advanced welding and assembly technologies (AWJ-M15-03).


  1. 1.
    H. Li, Y. Zheng, T. Peiy, and J. T. De Hosson, “TiNi shape memory alloy coated with tungsten: a novel approach for biomedical applications,” J. Mater. Sci.: Materials in Medicine, 25(5), 1249 (2014).Google Scholar
  2. 2.
    A. P. Hernandez, B. Kiefer, D. J. Hartl, et al., “Analytical investigation of structurally stable configurations in shape memory alloy-actuated plates,” Int. J. Solids & Struct., 69 – 70, 442 – 458 (2015).CrossRefGoogle Scholar
  3. 3.
    A. I. Smirnov, G. A. Turichin, O. G. Klimova-Korsmi, et al., “Special features of the structure of laser-welded joints of dissimilar alloys based on titanium and aluminum,” Metal Sci. Heat Treat., 59, 534 – 539 (2017).CrossRefGoogle Scholar
  4. 4.
    F. Xiaoguang, Y. He, G. Pengfei, et al., “Morphology transformation of primary strip _-phase in hot working of two-phase titanium alloy,” Trans. Nonfer. Metals Soc. China, 27(6), 1294 – 1305 (2017).CrossRefGoogle Scholar
  5. 5.
    R. M. Mirande, E. Assuncao, J. C. R. Silva, et al., “Fiber laser welding of NiTi to Ti – 6Al – 4V,” Int. J. Adv. Manuf. Technol., 81(9 – 12), 1533 – 1538 (2015).CrossRefGoogle Scholar
  6. 6.
    P. Song, Y. Zhu, W. Guo, et al., “Mechanism of crack formation in the laser welded joint between NiTi shape memory alloy and Ti6AL4V,” Rare Metal Mater. Eng., 42(2), 6 – 9 (2013).Google Scholar
  7. 7.
    R. Shiue and S. Wu, “Infrared brazing of Ti50Ni50 and Ti –6Al – 4V using the BAg-8 braze alloy,” Mater. Trans., 46(9), 2057 – 2066 (2010).CrossRefGoogle Scholar
  8. 8.
    S. Xue, X. Lv, and H. Zhang, “The resistance brazing technology of TiNi shape memory alloy,” Trans. China Weld. Inst., 25(1), 1 – 4 (2004).Google Scholar
  9. 9.
    S. Xue, X. Lv, Y. Chen, “Microstructure analysis of TiNi shape memory alloy join by resistance brazing,” Trans. China Weld. Inst., 25(3), 7 – 10 (2004).Google Scholar
  10. 10.
    Y. Chen, J. Ge, F. Liu, and L. Ke, “Micro laser welding of dissimilar materials between TiNi shape memory alloy and Ti6Al4V titanium alloy,” Optics & Precision Eng., 22(8), 2075 – 2080 (2014).CrossRefGoogle Scholar
  11. 11.
    A. S. Zoeram, S. Mousavi, and M. Akbari, “Effect of interlayer thickness on microstructure and mechanical properties of as welded Ti6Al4V/Cu/NiTi joints,” Mater. Lett.,133(10), 5 – 8 (2014).CrossRefGoogle Scholar
  12. 12.
    Y. Chen, S. Li, and W. Lu, “Study on crack sensitivity of NiTiNb/Ti6Al4V laser micro-welding joints,” Aeronaut. Sci. Technol., 28(4), 75 – 78 (2017).Google Scholar
  13. 13.
    W. Lu, Study on the Crack Formation Mechanism and Control Methods of Laser Micro-Welded Joints of NiTiNb and Ti6Al4V Dissimilar Alloys, Nanchang Hangkong University (2015).Google Scholar
  14. 14.
    A. S. Zoeram and S. Mousavi, “Laser welding of Ti – 6Al – 4V to Nitinol,” Mater. Design,61(9), 185 – 190 (2014).CrossRefGoogle Scholar
  15. 15.
    M. N. Jha, D. K. Pratihar, A. Bapat, et al., “Modeling of inputoutput relationships for electron bean butter welding of dissimilar materials using neural networks,” Int. J. Comput. Intelligence & Appl., 13(3), 1387 – 1448 (2014).Google Scholar
  16. 16.
    Y. Q. Zhang, S. Y. Jiang, X. M. Zhu, et al., “Influence of Fe addition on phase transformation behavior of NiTi shape memory alloy,” Trans. Nonferrous Met. Soc. China, 27(7), 1580 – 1587 (2017).CrossRefGoogle Scholar
  17. 17.
    D. Zhao, P. Guo, and P. Zhao, “Estimating model of standard enthalpy of intermetallics,” J. Central South Univ. (Sci. Technol.), 42(6), 1578 – 1583 (2011).Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Zilin Zhan
    • 1
    Email author
  • Yuhua Chen
    • 1
  • Shanlin Wang
    • 1
  • Yongde Huang
    • 1
  • Yuqing Mao
    • 1
  1. 1.National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology of NanchangNanchangChina

Personalised recommendations