Skip to main content
SpringerLink
Log in

Formation of Secondary Phases and Their Effect on the Mechanical Properties of Joints Formed by TLP Bonding Using Fe–B–Si Insert Metal in Duplex Stainless Steel

  • Published:
Metals and Materials International Aims and scope Submit manuscript

Abstract

We studied the effects of secondary phases on the mechanical properties of joints formed by transient liquid-phase bonding in nitrogen-containing duplex stainless steel UNS S32750. Transient liquid-phase bonding was carried out using Fe–B–Si amorphous insert metal over the temperature range of 1423–1473 K for 0–1000 s under a vacuum of 5 × 10−5 Torr. Area fraction of austenite (γ) in the joint region decreased with increasing bonding temperature and holding time. In particular, when the holding time was sufficiently prolonged, γ phase-depleted region were observed in the base metal adjacent to the joint. Secondary phases formed at the joint after short holding times were predominantly chromium borides. For specimens bonded with longer holding times (up to 1000 s), boron nitrides were formed at the interface with the joint. Formation of secondary phases in a joint area during the bonding process was expressed by diffusion equation. Tensile strength was improved in accordance with increase of bonding temperature and holding time. Especially, the bonding efficiency was over 98% for the specimen held for 1000 s at 1473 K. Tensile strength of the joint after short holding times was affected by brittle residual eutectic constituents and borides, whereas tensile strength after longer holding time was influenced by boron nitride formed at the joint interface. The results showed that the mechanical properties were strongly related to the secondary phases (CrB, BN) formed during the bonding process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

Similar content being viewed by others

References

  1. J.O. Nilsson, Mater. Sci. Technol. 8, 685–700 (1992)

    Article  Google Scholar 

  2. J.P. Hoffman, J. S. Afr. Inst. Min. Metall. 86(11), 433 (1986)

    Google Scholar 

  3. K. Ravindranath, S.N. Mailhotra, Corros. Sci. 37(1), 121 (1995)

    Article  Google Scholar 

  4. H.D. Solomon, T.M. Devine, in: ed. by R.A. Lula. Duplex Stainless Steels (ASM, Metals Park, 1982), pp. 693–756

  5. N. Lopez, M. Cid, M. Puiggali, Corros. Sci. 41, 1615–1631 (1999)

    Article  Google Scholar 

  6. D.J. Kotccki, Weld. J. 68, 431s–441s (1989)

    Google Scholar 

  7. J. Hilkes, K. Bekkers, Weld. J. 74, 51–54 (1995)

    Google Scholar 

  8. H. Matsunaga, Y.S. Sato, H. Kokawa, T. Kuwana, Sci. Technol. Weld. Join. 3, 225–232 (1998)

    Article  Google Scholar 

  9. Y.S. Sato, H. Kokawa, T. Kuwana, Sci. Technol. Weld. Join. 4, 41–49 (1999)

    Article  Google Scholar 

  10. R.A. Walker, Mater. Sci. Technol. 4, 78–84 (1988)

    Article  Google Scholar 

  11. T. Zacharia, S.A. David, J.M. Vitek, T. Debroy, Metall. Trans. A 20, 957–967 (1989)

    Article  Google Scholar 

  12. J.H. Potgieter, Br. Corros. J. 27(3), 219 (1992)

    Article  Google Scholar 

  13. J.C. Lippold, W. Lin, S. Brandi, I. Varol, W.A. Baeslack, in Proceedings of Duplex Stainless Steels Conference, Glasgow, Scotland (1994)

  14. E.I. Kivineva, N.E. Hannerz, in Proceedings of Duplex Stainless Steels Conference, Glasgow, Scotland (1994)

  15. M.F. Islam, N. Ridley, Scr. Mater. 38, 1187 (1998)

    Article  Google Scholar 

  16. L.H. Chiu, W.C. Hsieh, C.H. Wu, Mater. Sci. Eng. A 354, 82–91 (2003)

    Article  Google Scholar 

  17. T. Padron, T.I. Khan, M.J. Kabir, Mater. Sci. Eng. A 385, 220–228 (2004)

    Article  Google Scholar 

  18. X. Yuan, M.B. Kim, Y.H. Cho, C.Y. Kang, Metall. Mater. Trans. A 43, 1989–2001 (2012)

    Article  Google Scholar 

  19. T.I. Khan, M.J. Kabir, R. Bulpett, Mater. Sci. Eng. A 372, 290–295 (2004)

    Article  Google Scholar 

  20. T.I. Khan, E.R. Wallach, J. Mater. Sci. 31, 2937–2943 (1996)

    Article  Google Scholar 

  21. H. Ikawa, Y. Nakao, Trans. Jpn. Weld. Soc. 8, 3–8 (1977)

    Google Scholar 

  22. Y. Nakao, K. Nishimoto, et al., in Proceedings Superalloys’89 (Metallurgical Society of AIME, 1989), pp. 775–783

  23. W.F. Gale, S.V. Orel, Metall. Trans. A 27A, 1925–1931 (1996)

    Article  Google Scholar 

  24. H.Y. Liou, R.I. Hsieh, W.T. Tsai, Corros. Sci. 44, 2841–2856 (2002)

    Article  Google Scholar 

  25. O. Kubaschewski, C.B. Alcock, Metallurgical Thermochemistry, 5th edn. (Pergmon Press, Oxford, 1979), pp. 336–356

    Google Scholar 

  26. J. Crank, The Mathematics of Diffusion (Oxford University Press, Oxford, 1975), pp. 13–16

    Google Scholar 

  27. The Japan Institute of Metals, Metals Data Book (Maruzen, Tokyo, 1993), pp. 21–22

    Google Scholar 

  28. B.H. Rhee, S.J. Roh, D.H. Kim, Mater. Trans. 44, 1014–1023 (2003)

    Article  Google Scholar 

Download references

Acknowledgements

This research was supported by the Development of Space Core Technology initiative of the National Research Foundation of Korea (NRF) and Innopolis Foundation of Korea funded by the Ministry of Science and ICT (NRF-2016M1A3A3A04017836, ACC-2016-DDI-00793 and 1711063546-2017K000601). The authors would also like to thank VITZRONEXTECH Research Institute for financially supporting this research.

Author information

Authors and Affiliations

  1. Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea

    Sungjoo Roh & Changhee Lee

Authors
  1. Sungjoo Roh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Changhee Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Changhee Lee.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Roh, S., Lee, C. Formation of Secondary Phases and Their Effect on the Mechanical Properties of Joints Formed by TLP Bonding Using Fe–B–Si Insert Metal in Duplex Stainless Steel. Met. Mater. Int. 25, 425–438 (2019). https://doi.org/10.1007/s12540-018-0186-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12540-018-0186-4

Keywords

Search

Navigation