Skip to main content
SpringerLink
Log in

Effect of Heat Treatment on Niobium Segregation of Laser-Cladded IN718 Alloy Coating

  • Published:
Metallurgical and Materials Transactions A Aims and scope Submit manuscript

Abstract

An IN718 alloy coating was prepared by high-power diode laser cladding. 980STA standard heat treatment and direct aging (DA) were employed to improve the properties of this coating. The niobium segregation in the as-deposited coating and the heat-treated coating had been investigated using a scanning electron microscope (SEM) equipped with energy-dispersive X-ray spectroscopy (EDAX). The results showed that 980STA standard heat treatment improved the microhardness of the coating significantly, and Laves concentration was reduced from 30.6 vol pct to about 11.4 vol pct after 980STA. The niobium concentration in Laves of the 980STA-treated coating was higher than that of DA-treated coating and as-deposited coating. Only a small portion of niobium in the coating was precipitated in the form of γ″ during the 980STA heat treatment. The rest of niobium was the alloying element for solid-solution strengthening and the constituent element of Laves. The niobium segregation facilitated the formation of Laves.

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

Similar content being viewed by others

References

  1. R.F. Decker and C.T. Sims: The Superalloys: Vital High Temperature Gas Turbine Materials for Aerospace and Industrial Power, C.T. Sims and W.C. Hagel, eds., Wiley, New York, NY, 1972, pp. 33–77.

  2. M.K. Miller, S.S. Babu, and M.G. Burke: Mater. Sci. Eng. A, 1999, vol. 270A, pp. 14–18.

    Google Scholar 

  3. T. Antonsson and H. Fredriksson: Metall. Mater. Trans. B, 2005, vol. 36B, pp. 85–96.

    Article  CAS  Google Scholar 

  4. S. Gobbi, L. Zhang, J. Norris, K.H. Richter, and J.H. Loreau: J. Mater. Process. Technol., 1996, vol. 56, pp. 333–45.

    Article  Google Scholar 

  5. R. Vincent: Acta Metall., 1985, vol. 33, pp. 1205–16.

    Article  CAS  Google Scholar 

  6. K. Vishwakarma, N. Richards, and M. Chaturvedi: Mater. Sci. Eng. A, 2008, vol. 480A, pp. 517–28.

    Google Scholar 

  7. K. Sivaprasad and S.G.S. Raman: Metall. Mater. Trans. B, 2008, vol. 39B, pp. 2115–27.

    Google Scholar 

  8. D. Clark, M.R. Bache, and M.T. Whittaker: J. Mater. Process. Technol., 2008, vol. 203, pp. 439–48.

    Article  CAS  Google Scholar 

  9. C. Radhakrishna, K.P. Rao, and S. Srinivas: J. Mater. Sci. Lett., 1995, vol. 14, pp. 1810–12.

    Article  CAS  Google Scholar 

  10. H. Qi, M. Azer, and A. Ritter: Metall. Mater. Trans., 2009, vol. 40A, pp. 2410–22.

    Article  CAS  Google Scholar 

  11. G. Knorovsky, M. Cieslak, T. Headley, A. Romig, and W. Hammetter: Metall. Trans. A, 1989, vol. 20A, pp. 2149–58.

    CAS  Google Scholar 

  12. J.N. DuPont, J.G. Nawrocki, and M.L. Griffith: Proc. Solid Freeform Fabrication Conference, D.L. Bourell, J.J. Beaman, R.H. Crawford, H.L. Marcus, K.L. Wood, and J.W. Barlow, eds., University of Texas at Austin, Austin, TX, 2001, pp. 232–41.

  13. F. Liu, X. Lin, C. Huang, M. Song, G. Yang, and W. Huang: J. Alloys Compd., 2011, vol. 509, pp. 4505–09.

    Article  CAS  Google Scholar 

  14. A. Jung and A. Schnell: Int. J. Fatigue, 2008, vol. 30, pp. 286–91.

    Article  CAS  Google Scholar 

  15. W. Liu and J. DuPont: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 3397–3406.

    Article  CAS  Google Scholar 

  16. M. Gäumann, C. Bezençon, P. Canalis, and W. Kurz: Acta Mater., 2001, vol. 49, pp. 1051–62.

    Article  Google Scholar 

  17. A.A. Jawwad, M. Strangwood, and C. Davis: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 1237–47.

    Article  CAS  Google Scholar 

  18. J.F. Radavich: Proc. Conf. Speralloy 718—Metallurgy and Application, E.A. Loria, eds., TMS, Warrendale, PA, 1989, pp. 229–40.

  19. C. Radhakrishna and K.P. Rao: J. Mater. Sci., 1997, vol. 32, pp. 1977-84.

    Article  CAS  Google Scholar 

  20. J.J. Schirra, R.H. Caless, and R.W. Hatala: Superalloys 718, 625 and Various Derivatives, E.A. Loria, eds., TMS, Pittsburgh, PA, 1991, pp. 375-88.

  21. W.D. Morrow and B.R. Patterson: J. Mater. Energ. Sys., 1986, vol. 8, pp. 38-43.

    Article  CAS  Google Scholar 

  22. M. Sozanska, A. Maciejny, C. Dagbert, J. Galland, and L. Hyspecká: Mater. Sci. Eng. A, 1999, vols. 273-5A, pp. 485–90.

  23. G.M. Reddy, C.V.S. Murthy, K.S. Rao, and K.P. Ral: Int. J. Manuf. Technol., 2009, vol. 43, pp. 671-80.

    Article  Google Scholar 

  24. M.J. Cieslak, G.A. Knorovsky, T.J. Headley, and J.A.D. Romig: Proc. Conf. Speralloy 718—Metallurgy and Application, E.A. Loria, eds., TMS, Warrendale, PA, 1989, pp. 59–68.

  25. X. Cai: Fundamentals of Materials Science and Engineering, Shanghai Tiaotong University Press, Shanghai, P.R. China, 2010.

  26. W. Kurz and D.J. Fisher: Fundamentals of Solidification, 4th ed., Enfield Publishing & Distribution Company, Enfield, NH, 1998.

  27. Z.M. Wang, K. Guan, M. Gao, X.Y. Li, X.F. Chen, and X.Y. Zeng: J. Alloys Compd., 2012, vol. 513, pp. 518–23.

    Article  CAS  Google Scholar 

  28. J. Huang, P.L. Nie, Y.C. Zhang, H.G. Liu, Z.G. Li, and Y.X. Wu: Rare Metal, Mater. Eng., 2011, vol. 40, pp. 283–87.

    Google Scholar 

  29. G. Bi, A. Gasser, K. Wissenbach, A. Drenker, and R. Poprawe: Opt. Lasers Eng., 2006, vol. 44, pp. 1348–59.

    Article  Google Scholar 

  30. D.G.L. Prakash, M.J. Walsh, D. Maclachlan, and A.M. Korsunsky: Int. J. Fatigue, 2009, vol. 31, pp. 1966–77.

    Article  CAS  Google Scholar 

  31. A. Strondl, R. Fischer, G. Frommeyer, and A. Schneider: Mater. Sci. Eng. A, 2008, vol. 480A, pp. 138–47.

    Google Scholar 

Download references

Acknowledgments

The authors gratefully acknowledge the financial support of the Ministry of Science and Technology of the People’s Republic of China (Grant No. 2009DFB50350) and the National Natural Science Foundation of China (Grant No. 50971091).

Author information

Authors and Affiliations

  1. Department of Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China

    Yaocheng Zhang (Ph.D. Candidate), Zhuguo Li (Professor), Pulin Nie (Assistant Researcher) & Yixiong Wu (Professor)

  2. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China

    Yixiong Wu (Professor)

Authors
  1. Yaocheng Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Zhuguo Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Pulin Nie
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yixiong Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zhuguo Li.

Additional information

Manuscript submitted February 11, 2012.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhang, Y., Li, Z., Nie, P. et al. Effect of Heat Treatment on Niobium Segregation of Laser-Cladded IN718 Alloy Coating. Metall Mater Trans A 44, 708–716 (2013). https://doi.org/10.1007/s11661-012-1459-z

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11661-012-1459-z

Keywords

Search

Navigation