Preparation and Mechanical Properties of 42CrMo/40CrNiMo Dissimilar Steel Joints Prepared by Diffusion Bonding

  • Jie Wang
  • Fuqi Zhang
  • Guanzhong Yang
  • Bin Wang
  • Minmin Xia
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

In this paper, using CuZn alloy as interlayer, 42CrMo/40CrNiMo dissimilar steel joints were prepared by vacuum diffusion bonding, and the effects of holding time on microstructure and properties of 42CrMo/40CrNiMo joints were studied. The microstructure and mechanical properties of 42CrMo/40CrNiMo joints were analyzed and characterized by optical microscope (OM), scanning electron microscope (SEM), energy disperse spectroscopy (EDS), universal mechanical testing machine and vickers hardness tester. The results showed that when the bonding temperature was 780 °C, the bonding pressure was 0.02 MPa and the holding time were 5–30 min, obvious interface transition zones formed through diffusion reaction of CuZn interlayer to 42CrMo and 40CrNiMo base materials. The bonding region was dense and continuous with a good combination. In the joints prepared at different conditions, the microhardness of interlayer was lower than base materials. With the increase of holding time, the shear strength of 42CrMo/40CrNiMo joints increased at first and then decreased. The maximum joint shear strength, with the value of 135.86 MPa, was obtained when the holding time was 15 min. Meanwhile, the load-displacement curves and fracture surfaces indicated that the fractural mode of 42CrMo/40CrNiMo joints was ductile-brittle mixed fracture, in which brittle fracture was dominating.

Keywords

Diffusion bonding Dissimilar materials Holding time Microstructure Mechanical properties 

Notes

Acknowledgements

This research work was sponsored by the National Natural Science Foundation of China (No. 51602269), and Young Scholars Development Fund of SWPU (No. 20149901006).

References

  1. 1.
    N. Nan, Fatigue reliability analysis and crack initiation micromechanism for 42CrMo steel, Ph.D., Shandong University, Jinan, China, (2006)Google Scholar
  2. 2.
    G.H. Chen, X.C. Zhang, R.J. Yu, Effect of zonal segregation on microstructure and mechanical properties of 40CrNiMo steel. Hot Work. Technol. 8, 16–18 (2012)Google Scholar
  3. 3.
    J.J. Zhao, 40CrNiMo steel hard cutting process and surface morphology research, MS., Zhengzhou University, Zhengzhou, China, (2014)Google Scholar
  4. 4.
    X.S. Liu, J.Y. Wu, T. Cheng, Welding process research on 42CrMo and Q345D forge welding gear. Welded Pipe Tube 11, 45–48 (2016)Google Scholar
  5. 5.
    X.M. Yan, The welding of 42CrMo gear ring. Mech. Electr. Technol. 01, 66–68 (2009)Google Scholar
  6. 6.
    T. Gang, Y. Takahashi, Review of quality evaluation of diffusion bonded joints. NDT 8, 410–414 (2003)Google Scholar
  7. 7.
    C.F. Wei, B. Zhang, J. Tang et al., Development and application of material diffusion bonding technology. Mater. Rev. s2, 103–106 (2015)Google Scholar
  8. 8.
    X.Y. Guo, J.P. Lin, B. Sun, Research progress of diffusion bonding technology. Hot Work. Technol. 17, 15–20 (2014)Google Scholar
  9. 9.
    J. Zhou, H.L. Wang, Research on Vacuum Brazing of 42CrMo Steel and Hard Alloy YG8. Hot Work. Technol. 7, 109–111 (2009)Google Scholar
  10. 10.
    J. Luo, L. Li, Y. Dong et al., A new current hybrid inertia friction welding for nickel-based superalloy K418-alloy steel 42CrMo dissimilar metals. Int. J. Adv. Manuf. Technol. 9, 1673–1681 (2014)CrossRefGoogle Scholar
  11. 11.
    T. Wang, T. Ivas, C. Leinenbach et al., Microstructural characterization of Si3N4/42CrMo joint brazed with Ag–Cu–Ti + TiNp composite filler. J. Alloys Compd. 651, 623–630 (2015)CrossRefGoogle Scholar
  12. 12.
    L.Y. Xu, Z.J. Xia, Research on welding process of dissimilar steel welding between 42CrMo and Q345B. Hot Work. Technol. 11, 208–211 (2013)Google Scholar
  13. 13.
    S.G. Du, L. Fu, J.W. Wang et al., Forming mechanism of carbide band in friction welding joint of superalloy K418 and steel 42CrMo. Chin. J. Nonferrous Metals 2, 323–327 (2003)Google Scholar
  14. 14.
    Y. Li, H. Wu, F.J. Shang et al., Vacuum diffusion bonding of TiAl intermetallics and 42CrMo alloy steel. Ord. Mater. Sci. Eng. 3, 45–47 (2001)Google Scholar
  15. 15.
    Y.L. Li, M.Y. Lv, J.C. Feng et al., The properties of the phase and the effects on mechanical properties of the TiAl alloy/42CrMo steel brazing joints. Trans. China Weld. Inst. 1, 41–44 (2014)Google Scholar
  16. 16.
    J. Wang, K.Z. Li, H.J. Li et al., Partial transient liquid phase bonding of carbon/carbon composites using Ti–Ni–Al2O3–Si compound as interlayer. J. Alloys Compd. 6, 57–62 (2013)CrossRefGoogle Scholar
  17. 17.
    K.Z. Li, J. Wang, X.B. Ren et al., The preparation and mechanical properties of carbon–carbon/lithium–aluminum–silicate composite joints. Mater. Des. 44, 346–353 (2013)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jie Wang
    • 1
  • Fuqi Zhang
    • 1
  • Guanzhong Yang
    • 1
  • Bin Wang
    • 1
  • Minmin Xia
    • 2
  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduChina
  2. 2.The Oil Production Technology Institute, CNPC Da Gang Oilfield CompanyTianjinChina

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