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Room-Temperature Erosion Behaviour of Nb-Stabilized 27Cr–7Ni–Mo–W–N Cast Hyper-Duplex Stainless Steel (Nb + CD3MWN - 7A)

  • M. RajkumarEmail author
  • S. P. Kumaresh Babu
  • A. Vallimanalan
  • R. Mahendran
Original Contribution
  • 56 Downloads

Abstract

Niobium addition to base alloy significantly reduces the formation of deleterious phases, in particular, sigma phase when the material is sensitized at 900 °C. In this paper, hyper-duplex stainless steel with 0.47% of Niobium (Nb + CD3MWN - 7A) was casted using induction melting furnace and then heat-treated under two different heat treatment temperatures of 1160 °C and 900 °C to explore the properties such as microstructure and hardness for further study. The erosion test was carried out in air-jet erosion tester at room temperature with different erodent velocities. The study was done with a constant impact angle of 45°. Microstructure analysis was carried on two different heat-treated samples as well as on eroded samples using scanning electron microscope coupled with energy-dispersive analysis spectroscopy to confirm the presence Niobium carbide precipitation in sensitized sample at grain boundaries. Erosion test results showed that erosion rate is lower in sensitized sample when compared to solutionized sample because of their higher hardness in sensitized sample.

Keywords

CD3MWN Erosion Hyper-duplex stainless steel 7A Niobium Room temperature Stabilization 

References

  1. 1.
    T.H. Chen, J.R. Yang, Mater. Sci. Eng. A A338, 166–181 (2002)CrossRefGoogle Scholar
  2. 2.
    V. Muthupandi, P. Bala Srinivasan, S.K. Seshadri, S. Sundaresan, Mater. Sci. Eng. A A358, 9–16 (2003)CrossRefGoogle Scholar
  3. 3.
    D.E. Nelson, W.A. Baeslack III, J.C. Lippold, Mater. Charact. 39, 467–477 (1997)CrossRefGoogle Scholar
  4. 4.
    K. Ravindranath, S.N. Mailhotra, Corros. Sci. 37(1), 121–132 (1995)CrossRefGoogle Scholar
  5. 5.
    R.D. Kane, Adv. Mater. Process. 144(1), 16–20 (1993)Google Scholar
  6. 6.
    J.O. Nilsson, Mater. Sci. Technol. 8, 85–700 (1992)CrossRefGoogle Scholar
  7. 7.
    P.J. Antony, R.K. Singh Raman, R. Mohanram, P. Kumar, R. Raman, Corros. Sci. 50, 1858–1864 (2008)CrossRefGoogle Scholar
  8. 8.
    V. Muthupandi, P. Bala Srinivasan, S.K. Seshadri, S. Sun daresan, Mater. Sci. Eng. A A3, 9–16 (2003)CrossRefGoogle Scholar
  9. 9.
    J.O. Nilson, P. Kangas, T. Karlsson, A. Wilson, Metall. Mater. Trans. A 31, 35–45 (2000)CrossRefGoogle Scholar
  10. 10.
    M. Martins, L.C. Casteletti, Mater. Charact. 60, 792–795 (2009)CrossRefGoogle Scholar
  11. 11.
    S.K. Ghosh, S. Mondal, Mater. Charact. 59, 1776–1783 (2008)CrossRefGoogle Scholar
  12. 12.
    N. Lopez, M. Cid, M. Puiggali, Corros. Sci. 41, 1615–1631 (1999)CrossRefGoogle Scholar
  13. 13.
    J.O. Nilsson, A. Wilson, Mater. Sci. Technol. 9, 545–554 (1993)CrossRefGoogle Scholar
  14. 14.
    B. Deng, Z. Wang, Y. Jiang, T. Sun, J. Xu, J. Li, Corros. Sci. 51, 2969–2975 (2009)CrossRefGoogle Scholar
  15. 15.
    J.W. Simmon, Scr. Metall. Mater. 32, 265–270 (1995)CrossRefGoogle Scholar
  16. 16.
    Z.Z. Yuan, Q.X. Dai, X.N. Chen, K.M. Chen, Mater. Charact. 58, 87–91 (2007)CrossRefGoogle Scholar
  17. 17.
    A.J. Strutt, G.W. Lorimer, C.V. Roscoe, K.J. Gradwell, Proc. Duplex Stainl. Steels 86, 310 (1986)Google Scholar
  18. 18.
    D.Y. Kobayashi, S. Wolynec, Mater. Res. 4, 239–247 (1999)CrossRefGoogle Scholar
  19. 19.
    C.S. Huang, C.C. Shin, Mater. Sci. Eng. A 402, 66–75 (2005)CrossRefGoogle Scholar
  20. 20.
    K.M. Lee, H.S. Cho, D.C. Choi, J. Alloys Compd. 285, 156–161 (1999)CrossRefGoogle Scholar
  21. 21.
    T.H. Chen, J.R. Yang, Mater. Sci. Eng. A 311, 28–41 (2001)CrossRefGoogle Scholar
  22. 22.
    K. Premachandra, M.B. Cortie, R.H. Eric, Mater. Sci. Technol. 8, 437–442 (1992)CrossRefGoogle Scholar
  23. 23.
    S.H. Jeon, S.T. Kim, I.S. Lee, J.S. Kim, K.T. Kim, Y.S. Park, Corros. Sci. 66, 217–224 (2013)CrossRefGoogle Scholar
  24. 24.
    A.S. Zubchenko, Mater. Sci. Heat Treat. 24, 274–276 (1982)CrossRefGoogle Scholar
  25. 25.
    E.O. Hall, S.H. Algie, Metall. Rev. 11, 61–88 (1966)Google Scholar
  26. 26.
    S.H. Jeon, S.T. Kim, I.S. Lee, J.S. Kim, K.T. Kim, Y.S. Park, J. Alloys Compd. 544, 166–172 (2012)CrossRefGoogle Scholar
  27. 27.
    D.Y. Lin, T.C. Chang, G.L. Liu, Scr. Mater. 49, 855–860 (2003)CrossRefGoogle Scholar
  28. 28.
    W. Xiaofeng, C. Weiqing, J. Rare Earths 28, 295–300 (2010)Google Scholar
  29. 29.
    M. Patel, D. Patel, S. Sekar, P.B. Tailor, P.V. Ramana, Procedia Technol. 23, 288–295 (2016)CrossRefGoogle Scholar
  30. 30.
    R. Bellman Jr., Wear, 70, 1–27 (1981)Google Scholar
  31. 31.
    B. Bhusan, Introduction to Tribology, Technology & Engineering, pp. John Wiley & Sons, 330–332 (2002)Google Scholar

Copyright information

© The Institution of Engineers (India) 2018

Authors and Affiliations

  • M. Rajkumar
    • 1
    Email author
  • S. P. Kumaresh Babu
    • 1
  • A. Vallimanalan
    • 1
  • R. Mahendran
    • 1
  1. 1.Department of Metallurgical and Materials EngineeringNITTrichyIndia

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