Abstract
The partitioning behavior of Mn and Si at the cementite/ferrite interface during tempering of Fe-C-Si-Mn steel martensite has been studied by atom probe field-ion microscopy (APFIM). It has been shown that cementite can form without partitioning of Si and Mn during the early tempering stage at a low temperature. The atom probe compositional analysis shows no evidence of segregation or of concentration spikes of substitutional elements at the interface. This suggests that the early stage of cementite growth occurs by paraequilibrium mode and is controlled only by C diffusion in the matrix. In addition, significant C concentration fluctuations are measured in the as-quenched condition. The onset of partitioning of both Si and Mn occurs after prolonged time or by increasing the tempering temperature.
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References
M. Hillert:Internal Report, Swedish Institute of Metal Research, Stockholm, 1953.
J.S. Kirkaldy:Can. J. Phys., 1958, vol. 36, pp. 899–925.
G.R. Purdy, D.H. Weichert, and J.S. Kirkaldy:Trans. TMS-AIME, 1964, vol. 230, pp. 1025–34.
D.E. Coates:Metall. Trans., 1972, vol. 3, pp. 1203–12.
D.E. Coates:Metall. Trans., 1973, vol. 4, pp. 1077–86.
D.E. Coates:Metall. Trans., 1973, vol. 4, pp. 2313–25.
A. Hultgren:Jernkontorets Ann., 1951, vol. 135, p. 403.
H.K.D.H. Bhadeshia:Prog. Mater. Sci., 1985, vol. 29, pp. 321–86.
J.B. Gilmour, G.R. Purdy, and J.S. Kirkaldy:Metall. Trans., 1972, vol. 3, pp. 3213–22.
M. Enomoto and H.I. Aaronson:Metall. Trans. A, 1987, vol. 18A, pp. 1547–57.
H.K.D.H. Bhadeshia:J. Phys. Colloq., 1989, vol. 50, pp. 389–94.
MTDATA, Metallurgical and Inorganic Thermodynamic Bank, National Physical Laboratory, Teddington, United Kingdom, 1989.
J. Kucera and Karel Stransky:Mater. Sci. Eng., 1982, vol. 52, pp. 1–38.
J. Fridberg, L.E. Torndahl, and M. Hillert,Jernkontorets Ann., 1969, vol. 153, pp. 263–76.
H.K.D.H. Bhadeshia and D.V. Edmonds:Mater. Sci., 1979, vol. 13, pp. 325–34.
K. Hono, T. Hashizume, and T. Sakurai:Surf. Sci., 1992, vol. 266, pp. 506–12.
M.K. Miller and G.D.W. Smith:Atom Probe Microanalysis: Principles and Applications to Materials Problems, Materials Research Society Pittsburgh, PA, 1989.
Y. Ohmori:Mater. Trans. J. Inst. Met., 1989, vol. 30, pp. 487–97.
Y. Ohmori and I. Tamura:Metall. Trans. A, 1992, vol. 23A, pp. 2737–51.
M.K. Miller, P.A. Beaven, S.S. Brenner, and G.D.W Smith:Metall. Trans. A, 1983, vol. 14A, pp. 1021–24.
W. Sha and G.D.W. Smith:Surf. Sci., 1992, vol. 266, pp. 416–23.
K.A. Taylor, L. Chang, G.B. Olson, G.D.W. Smith, M. Cohen, and J.B. Vander Sande:Metall. Trans. A, 1989, vol. 20A, pp. 2717–37.
K.A. Taylor, G.B. Olson, M. Cohen, and J.B. Vander Sande:Metall. Trans. A, 1989, vol. 20A, pp. 2749–65.
L. Chang and G.D.W. Smith:J. Phys., 1984, vol. 45, pp. 397–401.
A.M. Sherman, G.T. Eldis, and M. Cohen:Metall. Trans. A, 1983, vol. 14A, pp. 995–1005.
K.A. Andrews:Acta Metall., 1963, vol. 11, pp. 939–46.
B.P.J. Sandvik:Metall. Trans. A, 1982, vol. 13A, pp. 789–800.
Y. Ohmori and I. Tamura:Metall. Trans. A, 1992, vol. 23A, pp. 2147–58.
S.J. Barnard, G.D.W. Smith, A.J. Garret-Reed, and J. Vander Sande:Proc. Intl. Conf. on Solid-Solid Phase Transformations, H.I. Aaronson, D.E. Laughlin, R.F. Sekerka, and C.M. Wayman, eds., TMS-AIME, Warrendale, PA, 1981, pp. 881–85.
W. Hume-Rothery and G. V. Raynor:The Structure of Metals and Alloys, Monograph and Report Series, Institute of Metals, London, 1956, vol. 1, p. 270.
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Formerly Research Associate, Institute for Materials Research, Tohoku University
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Babu, S.S., Hono, K. & Sakurai, T. Atom probe field ion microscopy study of the partitioning of substitutional elements during tempering of a low-alloy steel martensite. Metall Mater Trans A 25, 499–508 (1994). https://doi.org/10.1007/BF02651591
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DOI: https://doi.org/10.1007/BF02651591