Abstract
In this paper, a coupled model for carbon partitioning from martensite into austenite during the quenching process in Fe-C steels is constructed where the carbon is permitted to partition while the martensite is continuously forming. A diffusion model of carbon at the ‘martensite/austenite interface’ is created where the interface does not move during the carbon partitioning process, and the driving force for carbon partitioning originates from the chemical potential difference. The results show that the martensitic transformation and carbon partitioning affect each other, and that the cooling rate between the martensite start temperature (M s) and room temperature has a major effect on the volume fraction of the final retained austenite. The simulation results are shown to be in good agreement with experiments.
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J. Speer, D.K. Matlock, B.C. De Cooman, J.G. Schroth: Acta Mater., 2003, vol. 51, pp. 2611-2622.
J.G. Speer, D.V. Edmonds, F.C. Rizzo, D.K. Matlock: Curr. Opin. Solid State Mater. Sci., 2004, vol. 8, pp. 219-237.
M. Hillert, J. Ågren: Scripta Mater., 2005, vol. 52, pp. 87-88.
Y. Sakuma, O. Matsumura, H. Takechi: Metall. Trans. A, 1991, vol. 22, pp. 489-498.
H.L. Yi, P. Chen, Z.Y. Hou, N. Hong, H.L. Cai, Y.B. Xu, D. Wu, G.D. Wang: Scripta Mater., 2013, vol. 68, pp. 370-374.
J. Speer, E. De Moor, K.O. Findley, D.K. Matlock, B.C. De Cooman, D.V. Edmonds: Metall. Mater. Trans. A, 2011, vol. 42, pp. 3591-3601.
M.J. Santofimia, L. Zhao, J. Sietsma: Scripta Mater., 2008, vol. 59, pp. 159-162.
M.J. Santofimia, L. Zhao, R. Petrov, C. Kwakernaak, W.G. Sloof, J. Sietsma: Acta Mater., 2011, vol. 59, pp. 6059-6068.
A.J. Clarke, J.G. Speer, D.K. Matlock, F.C. Rizzo, D.V. Edmonds, M.J. Santofimia: Scripta Mater., 2009, vol. 61, pp. 149-152.
T.Y. Hsu, X. Li: Acta Metall. Sin., 1983, vol. 19, pp. 83-88.
G.A. Thomas, J.G. Speer, D.K. Matlock: Metall. Mater. Trans. A, 2011, vol. 42, pp. 3652-3659.
C.L. Magee: Phase Transformations, p. 115, OH: American Society of Metals, 1970.
T.Y. Hsu: Acta Metall. Sin., 1979, vol. 15, pp. 329-338.
L. Kaufman, M. Cohen: Prog. Met. Phys., 1958, vol. 7, pp. 165-246.
L. Kaufman, E. Clougherty, R. Weiss: Acta Metall., 1963, vol. 11, pp. 323-335.
T.Y. Hsu, H. Zhang, S. Luo: Acta Metall. Sin., 1984, vol. 20, pp. 151-161.
T.Y. Hsu, H. Chang: Acta Metall., 1984, vol. 32, pp. 343-348.
P.G. Shewmon: Diffusion in Solids, McGraw-Hill, New York 1963, p. 1.
J. Crank: The mathematics of diffusion, 2nd ed., p. 137, Oxford Science Publication, 1975.
J. Ågren: Scripta Metall., 1986, vol. 20, pp. 1507-1510.
E. Seo, L. Cho, B. De Cooman: Metall. Mater. Trans. A, 2014, vol. 45, pp. 4022-4037.
E. Seo, L. Cho, and B. De Cooman: 5th International Conference of Hot Sheet Metal Forming of High-performance Steel, Toronto, 2015, pp. 745–51.
H. Bhadeshia: Met. Sci., 1981, vol. 15, pp. 175-177.
K.I. Sugimoto, N. Usui, M. Kobayashi, S.I. Hashimoto: ISIJ Int., 1992, vol. 32, pp. 1311-1318.
D.P. Koistinen, R.E. Marburger: Acta Metall., 1959, vol. 7, pp. 59-60.
Acknowledgments
This study was supported by the National Natural Science Foundation of China (Grant No. 51275185) and the National Natural Science Foundation of China (Grant No. 51405171). The authors would like to express their gratitude to Dr. Xiaochuan Xiong (from Easyforming Steel Technology Co. Ltd.) and Prof. Yao Shen (from Shanghai Jiao Tong University) for fruitful discussions.
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Manuscript submitted September 20, 2015.
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Liu, P., Zhu, B., Wang, Y. et al. Coupled Model for Carbon Partitioning from Martensite into Austenite During the Quenching Process in Fe-C Steels. Metall Mater Trans A 47, 4325–4333 (2016). https://doi.org/10.1007/s11661-016-3560-1
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DOI: https://doi.org/10.1007/s11661-016-3560-1