Metallurgical and Materials Transactions A

, Volume 43, Issue 13, pp 5115–5121 | Cite as

Carburizing of Duplex Stainless Steel (DSS) Under Compression Superplastic Deformation



A new surface carburizing technique which combines superplastic deformation with superplastic carburizing (SPC) is introduced. SPC was conducted on duplex stainless steel under compression mode at a fixed 0.5 height reduction strain rates ranging from 6.25 × 10−5 to 1 × 10−3 s−1 and temperature ranging from 1173 K to 1248 K (900 °C to 975 °C). The results are compared with those from conventional and non-superplastic carburizing. The results show that thick hard carburized layers are formed at a much faster rate compared with the other two processes. A more gradual hardness transition from the surface to the substrate is also obtained. The highest carburized layer thickness and surface hardness are attained under SPC process at 1248 K (975 °C) and 6.25 × 10−5 s−1 with a value of (218.3 ± 0.5) μm and (1581.0 ± 5.0) HV respectively. Other than that, SPC also has the highest scratch resistance.


  1. 1.
    C.H. Xu, J.K. Xi and Y.L. Yang: Heat Treatment of Metals, 1988, vol. 4, pp. 37Google Scholar
  2. 2.
    C.H. Xu, J.K. Xi and W. Gao: Scripta Mater., 1996, vol. 34, pp. 455-461Google Scholar
  3. 3.
    [3] C.H. Xu, J.K. Xi and W. Gao: Journal of Mater. Processing Tech, 1997, vol. 65, pp. 94-98CrossRefGoogle Scholar
  4. 4.
    [4] N. W. Ahamad, I. Jauhari, S. A. A. Azis and N. H. A. Aziz: Materials Science and Engineering: A, 2010, vol. 527, pp. 4257 - 4261CrossRefGoogle Scholar
  5. 5.
    [5] B.S. Suh and W. J. Lee: Thin Solid Films., 1997, vol. 295, pp. 185-192CrossRefGoogle Scholar
  6. 6.
    T.H. Courtney (2000) Mechanical Behavior of Materials. International McGraw-Hill Books Co, New York, p 32Google Scholar
  7. 7.
    L. J. E. Hofer, E. M. Cohn, W. C. Peebles (1949) J. Am. Chem. Soc. 71:189CrossRefGoogle Scholar
  8. 8.
    W Hellbom (1933) Sven. Kem. Tidskr 45:141Google Scholar
  9. 9.
    Schmitz-Pranghe N, Duenner P, Kohlhaas R (1967) Z. Angew Phys 23:245Google Scholar
  10. 10.
    Hull AW (1921) Phys. Rev. 17:571CrossRefGoogle Scholar
  11. 11.
    I. Manna, J. Dutta Majumdar (1993) J. Mater. Sci. Lett. 12:920-922CrossRefGoogle Scholar
  12. 12.
    Chakraborty J, Bhattacharjee D, Manna I (2009) Scripta Mater. 61:604-607CrossRefGoogle Scholar
  13. 13.
    Manna I, Pabi SK, Gust W (1991) J Mater Sci 26:4888-4892CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2012

Authors and Affiliations

  1. 1.Department of Mechanical Engineering, Faculty of EngineeringUniversity of MalayaKuala LumpurMalaysia

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