Abstract
The postdeformation recrystallization behavior of a hot-deformed austenitic stainless steel was investigated based on the first part of this study, in which the microstructure development during hot deformation and, in particular, the evolution of dynamic recrystallization (DRX), was studied. The effect of different parameters such as strain, strain rate, and temperature were examined. The dependency of the time for 50 pct softening, t 50, changed from “strain dependent” to “strain independent” at a transition strain (ε*) that was in the steady-state area of the hot deformation flow curve. The fully recrystallized microstructure showed a similar transition in strain sensitivity. However, this occurred at stains greater than ε*. A mathematical model was developed to predict the transition strain under different deformation conditions. Microstructural measurements show that the transition strain corresponds to approximately 50 pct DRX in the deformed structure at the point of unloading.
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Notes
This is often termed metadynamic recrystallization (MDRX), a term that here will be taken to represent recrystallization by the static growth of nuclei formed during DRX.
In the rest of this work, the delay time between two deformation passes or between deformation and quench is termed the “unloading time.”
References
P.D. Hodgson: Int. Conf. Thermomechanical Processing of Steels and Other Materials, Thermec ‘97, T. Chandra, T. Sakai, eds., TMS, Warrendale, PA, 1997, pp. 121–31
C. Roucoules, P.D. Hodgson, S. Yue, J.J. Jonas: Metall. Mater. Trans. A, 1994, vol. 25A, pp. 389–400
W.P. Sun, E.B. Hawbolt: ISIJ Int., 1997, vol. 37, pp. 1000–09
C.M. Sellars: in Hot Working and Forming Process, C.M. Sellars, C.H.J. Davies, eds., The Metal Society, London, England, 1979, pp. 3–15
S. Cho, K. Kang, J.J. Jonas: ISIJ Int., 2001, vol. 41, pp. 63–69
E.I. Poliak, J.J. Jonas: ISIJ Int., 2003, vol. 43, pp. 684–91
P.D. Hodgson: Doctoral Thesis, University of Queensland, Brisbane, Australia, 1993
A.M. Elwazri, P. Wanjara, S. Yue: ISIJ Int., 2003, vol. 43, pp. 1080–88
A.R. Morgridge: Bull. Mater. Sci., 2002, vol. 25, pp. 291–99
P. Uranga, A.I. Fernandez, B. Lopez, J.M. Rodriguez-Ibabe: Mater. Sci. Eng. A, 2003, vol. 345, pp. 319–27
C. Roucoules, P.D. Hodgson: Mater. Sci. Technol., 1995, vol. 11, pp. 548–56
P.D. Hodgson, R.E. Gloss, G.L. Dunlop: 32nd Mechanical Working and Steel Processing, M.E. Kassner, ed., ISS-AIME, Warrendale, PA, 1990, pp. 527–38
A. Belyakov, T. Sakai, H. Miura, R. Kaibyshev: ISIJ Int., 1999, vol. 39, pp. 592–99
A. Belyakov, H. Miura, T. Sakai: Scripta Mater., 2000, vol. 43, pp. 21–26
P.D. Hodgson, S.H. Zahiri, J.J. Whale: ISIJ Int., 2004, vol. 44, pp. 1224–29
S.H. Zahiri, P.D. Hodgson: Mater. Sci. Technol., 2004, vol. 20, pp. 456–64
D.R. Barraclough, C.M. Sellars: Met. Sci., 1979, vol. 13, pp. 257–67
T. Sakai and M. Ohashi: 7th Int. Conf. Strength of Metals and Alloys, H.J. McQueen, J.P. Bailon, J.I. Dickson, J.J. Jonas, and M.G. Akben, eds., Pergamon Press, Oxford, England, 1985, pp. 917–22
D.Q. Bai, S. Yue, J.J. Jonas: in Thermomechanical Processing of Steel (COM 2000), S. Yue, E. Essadiqi, eds., TMS, Warrendale, PA, 2000, pp. 669–83
A.M. Elwazri, E. Essadiqi, S. Yue: ISIJ Int., 2004, vol. 44, pp. 744–52
M.R. Cartmill, M.R. Barnett, S.H. Zahiri, P.D. Hodgson: ISIJ Int., 2005, vol. 45, pp. 1903–08
P.D. Hodgson, D.C. Collinson, B.A. Parker: in Advances in Hot Deformation Textures and Microstructures, J.J. Jonas, T.R. Bieler, K.J. Bowman, eds., TMS, Warrendale, PA, 1994, pp. 41–61
C.M. Sellars: 7th Riso Int. Symp. Metall. Mater. Sci., N. Hansen, D. Jull Jensen, T. Leffers, and B. Ralph, eds., Riso National Laboratory, Roskilde, Denmark, 1986, pp. 167–87
L.P. Karjalainen, T.M. Maccagno, J.J. Jonas: ISIJ Int., 1995, vol. 35, pp. 1523–31
C. Roucoules: Doctoral Thesis, McGill University, Montreal, 1992
M. El Wahabi, L. Gavard, F. Montheillet, J.M. Cabrera, J.M. Prado: Acta Mater., 2005, vol. 53, pp. 4605–12
S.F. Medina, J.E. Mancilla: ISIJ Int., 1993, vol. 33, pp. 1257–64
A. Laasraoui, J.J. Jonas: ISIJ Int., 1991, vol. 31, pp. 95–105
S.-H. Cho, K.-B. Kang, J.J. Jonas: ISIJ Int., 2001, vol. 41, pp. 766–73
S.H. Cho, Y.C. Yoo: J. Mater. Sci., 2001, vol. 36, pp. 4279–84
L.P. Karjalainen, J.A. Koskiniemi, and X.D. Liu: Proc. 37th MWSP Conf., ISS, Warrendale, PA, 1996, vol. 33, pp. 861–69
J.P. Sah, C.J. Richardson, C.M. Sellars: Met. Sci., 1974, vol. 8, pp. 325–31
C.M. Sellars, J.A. Whiteman: Met. Sci., 1979, vol. 13, pp. 187–93
C.M. Sellaes: Int. Conf. Physical Metallurgy of Thermomechanical Processing of Steels and Other Metals (THERMEC-88), I. Tamura, ed., The Iron and Steel Institute of Japan, Tokyo, Japan, 1988, pp. 448–57
C.M. Sellaes: Mater. Sci. Technol., 1990, vol. 6, pp. 1072–81
C.M. Sellars: J.J. Jonas Symp., Thermomechanical Processing of Steel, S. Yue, E. Es-Sadiqi, eds., TMS, Warrendale, PA, 2000, pp. 3–19
L.A. Leduc, C.M. Sellars: in Thermomechanical Processing of Austenite, A.J. DeArdo, G.A. Ratz, P.J. Wary, eds., TMS-AIME, Warrendale, PA, 1982, pp. 641–47
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This work was supported by Australia Research Council funding through the award of a Federation fellowship.
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Manuscript submitted November 29, 2007.
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Dehghan-Manshadi, A., Barnett, M. & Hodgson, P. Hot Deformation and Recrystallization of Austenitic Stainless Steel: Part II. Post-deformation Recrystallization. Metall Mater Trans A 39, 1371–1381 (2008). https://doi.org/10.1007/s11661-008-9513-6
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DOI: https://doi.org/10.1007/s11661-008-9513-6