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Electron microscopy study of the aging and first stage of tempering of high-carbon Fe-C martensite

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Abstract

Transmission electron microscopy (TEM) observations of 1.95 wt pct C martensite samples, aged at 330 and 352 K for 1 and 2 hours, respectively, confirm the fact that the two steps of aging, as evidenced by Mössbauer spectroscopy kinetics study, are due to clustering and subsequent long-range ordering. Streaks are observed along 〈203〉* directions during clustering, and in addition, two types of split superstructure spots appear during ordering at the advanced stage of aging. These are tentatively explained by a 1C-2Fe-1C-5Fe-1C-5Fe sequence of carbon and iron atoms arranged along [001]α′, which gives rise to antiphase domains with a 12a superperiod within the alternating carbon-rich and carbon-depleted regions, wherea is the lattice parameter of body-centered cubic (bcc) iron. The associated formula is Fe6C. In the first stage of tempering, the orthorhombic structure of the precipitated carbide is confirmed, while evidence of ordering as in Co2N is lacking. The Fe9C4 stoichiometry, which is close to the experimental Fe2.4C, is instead proposed forε- orη-carbide.

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References

  1. J.-M.R. Génin:Metall. Trans. A, 1987, vol. 18A, pp. 1371–88.

    Google Scholar 

  2. E.J. Mittemeijer, L. Cheng, P.J. van der Schaff, CM. Brakman, and B.M. Korevaar:Metall. Trans. A, 1988, vol. 19A, pp. 925–32.

    CAS  Google Scholar 

  3. J.-M.R. Génin:Metall. Trans. A, 1988, vol. 19A, pp. 2901–09.

    Google Scholar 

  4. K.A. Taylor, L. Chang, G.B. Olson, G.D.W. Smith, M. Cohen, and J.B. VanderSande:Metall. Trans. A, 1989, vol. 20A, pp. 2717–37.

    CAS  Google Scholar 

  5. K.A. Taylor, G.B. Olson, M. Cohen, and J.B. VanderSande:Metall. Trans. A, 1989, vol. 20A, pp. 2739–47.

    CAS  Google Scholar 

  6. K.A. Taylor, G.B. Olson, M. Cohen, and J.B. VanderSande:Metall. Trans. A, 1989, vol. 20A, pp. 2749–65.

    CAS  Google Scholar 

  7. O.N.C. Uwakweh, J. Ph. Bauer, and J.-M.R. Génin:Metall. Trans. A, 1990, vol. 21A, pp. 589–602.

    CAS  Google Scholar 

  8. Y. Hirotsu and S. Nagakura:Acta Metall., 1972, vol. 20, pp. 645–55.

    Article  CAS  Google Scholar 

  9. Y. Hirotsu and S. Nagakura:Trans. Jpn. Inst. Met., 1974, vol. 15, pp. 129–34.

    CAS  Google Scholar 

  10. S. Nagakura and M. Toyoshima:Trans. Jpn. Inst. Met., 1979, vol. 20, pp. 100–10.

    CAS  Google Scholar 

  11. M. Kusunoki (née Toyoshima) and S. Nagakura:J. Appl. Crystallogr., 1981, vol. 15, pp. 513–17.

    Google Scholar 

  12. S. Nagakura, Y. Hirotsu, M. Kusunoki-Toyoshima, T. Suzuki, and Y. Nakamura:Metall. Trans. A, 1983, vol. 14A, pp. 1025–31.

    Google Scholar 

  13. R.F. Mehl and D.M. Van Winkle:Rev. Métall., 1953, vol. 50, p. 465.

    CAS  Google Scholar 

  14. M. Oka and CM. Wayman:Trans. AIME, 1968, vol. 242, pp. 337–38 ;Trans. ASM, 1969, vol. 62, pp. 370-76.

    CAS  Google Scholar 

  15. S.H. Wen, E. Kostlan, H. Hong, A.G. Khachaturyan, and J.W. Morris, Jr.:Acta Metall., 1981, vol. 29, pp. 1247–54.

    Article  CAS  Google Scholar 

  16. V.I. Izotov and L.M. Utevskiy:Fiz. Met. Metalloved., 1967, vol. 25, pp. 98–110.

    Google Scholar 

  17. A.G. Khachaturyan and T.A. Onisimova:Fiz. Met. Metalloved., 1968, vol. 25, pp. 973–80.

    Google Scholar 

  18. P. Grégoire, P. Pahuta, C. Dagbert, J. Galland, and H. Hyspecka:Proc. ICOMAT 85, Japan Institute of Metals, Nara, Japan, 1986, pp. 401–05.

    Google Scholar 

  19. A.G. Khachaturyan:Theory of Structural Transformation in Solids, John Wiley & Sons, New York, NY, 1983.

    Google Scholar 

  20. V.I. Izotov and L.M. Utevskiy:Fiz. Met. Metalloved., 1968, vol. 25, pp. 86–95.

    Google Scholar 

  21. L.I. Lysak and Y.N. Vov'k:Fiz. Met. Metalloved., 1965, vol. 19, pp. 699–706; vol. 20, pp. 540-54.

    CAS  Google Scholar 

  22. P.C. Chen and P.G. Winchell:Metall. Trans. A, 1980, vol. 11A, pp. 1333–39.

    CAS  Google Scholar 

  23. K.H. Jack:J. Iron Steel Inst., 1951, vol. 169, pp. 26–36.

    CAS  Google Scholar 

  24. K. Shimizu and H. Okamoto:Trans. Jpn. Inst. Met., 1974, vol. 15, pp. 193–99.

    CAS  Google Scholar 

  25. D.L. Williamson, K. Nakazawa, and G. Krauss:Metall. Trans. A, 1979, vol. 10A, pp. 1351–63.

    CAS  Google Scholar 

  26. M.G.H. Wells:Acta Metall., 1964, vol. 12, pp. 389–99.

    Article  CAS  Google Scholar 

  27. Samuel Murphy and John Anthony Whiteman:Metall. Trans., 1970, vol. 1, pp. 843–48.

    CAS  Google Scholar 

  28. B.S. Lement:Trans. ASM, 1953, vol. 45, pp. 597–98.

    Google Scholar 

  29. M.P. Arbuzov and B.V. Khayenko:Fiz. Met. Metalloved., 1962, vol. 13, pp. 686–92.

    CAS  Google Scholar 

  30. R. Ruhl and M. Cohen:Trans. TMS-AIME, 1969, vol. 245, pp. 241–51.

    CAS  Google Scholar 

  31. J.-M.R. Génin:Metall. Trans. A, 1990, vol. 21A, pp. 2083–86.

    Google Scholar 

  32. G.B. Olson, K.A. Taylor, and M. Cohen:Metall. Trans. A, 1990, vol. 21A, p. 2086.

    CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Science, University of Nancy, ESSTIN and the Laboratoire CNRS Maurice Letort, Parc R. Bentz, 54500, Vandoeuvre, France

    O. N. C. Uwakweh, J. -M. R. Génin (Professor and Department Head) & J. -F. Silvain (Research Scientist)

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  1. O. N. C. Uwakweh
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  2. J. -M. R. Génin
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  3. J. -F. Silvain
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Former Graduate Student of the University of Nancy and Laboratoire CNRS Maurice Letort

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Uwakweh, O.N.C., Génin, J.M.R. & Silvain, J.F. Electron microscopy study of the aging and first stage of tempering of high-carbon Fe-C martensite. Metall Trans A 22, 797–806 (1991). https://doi.org/10.1007/BF02658989

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  • DOI: https://doi.org/10.1007/BF02658989

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