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The primary focus of this work was to determine the relationship between chemical composition and the Zener-Hollomon exponent q in the peak strain equation for hot working of C-Mn steels with the ultimate aim of improving the modeling of mean flow stresses for hot strip mills. Therefore, the hot deformation behavior of C-Mn steels was examined in which the C and Mn contents were increased systematically between the levels 0.035 up to 0.52%C and 0.22 to 1.58%Mn, respectively. In addition, data from other workers were also analyzed to complement the results from this investigation. As opposed to the observations from some other workers that the apparent activation energy for hot working Q HW appears to decrease with an increase in the carbon content, it was found that, despite a weak relationship, Q HW increases with an increase in carbon content i.e., from 300 to 355 kJ/mol as was also found by others. Consequently, the Zener-Hollomon exponent q in the peak strain equation for hot working and hence also the critical strain for dynamic recrystallisation, εc = 0.65AD 0 m Z q , was found to decrease with an increase in carbon content as follows, q = 0.21 − 14[%C] for C ≤ 0.8%C. The possible role played by manganese-carbon complexes in the austenite during hot working and the consequences of the variation in q for compact strip production rolling are discussed.
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T. Sakai and M. Ohashi, The Effect of Temperature, Strain Rate, and Carbon Content on Hot Deformation of Carbon Steels, Tetsu to Hagane, 1981, 67(11), p 134–143
C. Rossard, P. Blain, Recherches sur la deformation des aciers a chaud, IRSID, Series A, No. 174, 1957
P.J. Wray, Effect of Composition and Initial Grain Size on the Dynamic Recrystallization of Austenite in Plain Carbon Steels, Metall. Trans. A, 1984, 15A, p 2009–2019 CrossRef
P.J. Wray, Effect of Carbon Content on the Plastic Flow of Plain Carbon Steels at Elevated Temperatures, Metall. Trans. A, 1982, 13A, p 125–134 CrossRef
D.C. Collinson, P.D. Hodgson, and B.A. Paker, The Deformation and Recrystallization Behaviour of Austenite, Conf. Proc. on Modelling of Metal Rolling Processes (IOM), 1993, p 283–295.
D.C. Collinson, P.D. Hodgson, and B.A. Paker, The Deformation and Recrystallisation. Behaviour of Austenite During Hot Rolling, J.J. Jonas, T.R. Bieler, and K.J. Bowman, Eds., TMS, Mass. 1993, p 41–58
D.C. Collinson, P.D. Hodgson, and C.H.J. Davies, The Effect of Carbon on the Hot Deformation and Recrystallization of Austenite, Themec’97, Wollongong, Australia, 1997
Y. Misaka and T. Yoshimoto, Japan Society for Technology of Plasticity, Formularization of Mean Resistance to Deformation of Plain, Carbon Steels Elev. Temp., 1967, 8, p 414–442
S. Shida, Empirical Formula of Flow Stress of Carbon Steels: Resistance to Deformation of Carbon Steels at Elevated Temperature, Jpn. Soc. Technol. Plast., 1969, 10, p 610–617
T.J. Dixon, C.M. Sellars, and J.A. Whiteman, The Effect of Carbon Content During Hot Deformation of Austenite, 37 th MWSP Conf. Proc., ISS, Vol XXXIII, 1996, p 705–710
J. Jaipal, C.H.J. Davies, B.P. Wynne, D.C. Collinson, A. Brownrigg, P.D. Hodgson, Effect of Carbon Content on the Hot Flow Stress and Dynamic Recrystallization Behaviour of Plain Carbon Steels, Int. Conf. on Thermomechanical Processing of Steels & Other Materials, T. Chandra and T. Sakai, Eds., The Minerals, Metals & Materials Society, 1997.
P. Feltham, The Plastic Flow of Iron and Plain Carbon Steels Above A 3 Point, Proc. Phys. Soc., 1953, B66, p 865 CrossRef
C. Nagasaki and J. Kihara, The Effect of Carbon Content on Deformation Resistance of Carbon Steels in the Austenite Temperature Range, Tetsu-to-Hagane, 1998, (in Japanese)
T. Inoue, S. Nanba, M. Katsumata, and G. Anan: Proc. of Int. Conf. on Modelling of Hot Rolling, S. Yue, Ed., CIM, Quebec, 1990, p 290
S.F Medina and C.A. Hernandez, General Expression of the Zener-Hollon Parameter as a Function of the Chemical Composition of Low Alloy and Microalloyed Steels, Acta Mater., 1996, 44(1), p 137–148
R. Colàs, A Model for the Hot Deformation of Low Carbon Steel, Mater. Process. Technol., 1996, 62, p 180–184 CrossRef
D.N. Crowther and B. Mintz, Influence of Carbon on Hot Ductility of Steels, Mater. Sci. Technol., 1986, 2, p 671–676 CrossRef
N.A. Gjostein, H.A. Domain, H.I. Aaronson, and E. Eichen, Relative Interfacial Energies in Fe-C Alloys, Acta Metall., 1966, 14, p 1637–1644 CrossRef
C.M. Sellars and J.A. Whiteman, Recrystallization and Grain Growth in Hot Rolling, Met. Sci., 1979, 13, p 187–194 CrossRef
C. Zener and J.H. Hollomon, Effect of Strain Rate Upon Plastic Flow of Steel, J. Appl. Phys., 1944, 15, p 22 CrossRef
C.M. Sellars, The Physical Metallurgy of Hot Working, Keynote Address, Proc. Int. Conf. Hot Working and Forming Processes, University of Sheffield, 1979
Gleeble 1500TM, Operational Manual, Dynamic Systems Inc. US.
G.E. Dieter, Mechanical Metallurgy, McGraw-Hill, New York, 1988
ASTM Specification E112–10 of 1982.
C.A. Muojekwu, Modelling of Thermomechanical and Metallurgical Phenomena in Steel Strip During Hot Direct Rolling and Run-Out Table of Thin-Cast Slabs, The University of British Columbia, PhD. thesis, 1998
J.L. Uvira and J.J. Jonas, Hot compression of Armco Iron and Silicon Steel, TMS AIME, 1968, 242, p 1619–1624
H.J. McQueen, O. Overdal, A. Cingara, and H. Gjestland, Mater. High Temp., 1992, 10, p 207–218
S. Serajzadeh and A. Karimi, Taheri, An Investigation on the Effect of Carbon and Silicon on Flow Behaviour of Steel, Mater. Des., 2002, 23, p 271–276 CrossRef
K. Lim, P.A. Manohar, D. Lee, Y.-C. Yoo, C.M. Cady, G.T. Gray, and A.D. Rollett, Constitutive Modelling of High Temperature Mechanical Behaviour of a Medium C-Mn Steel, Mater. Sci. Forum, 426-432, 3903-3908 Thermec’2003 Int. Conf. 4th, Processing and Manufacturing of Advanced Materials
C.M. Bae, A.M. Elwazri, D.L. Lee, and S. Yue, Dynamic Recrystallization Behaviour in Hypereutectoid Steels with Different Carbon Content, ISIJ Int., 2007, 47(11), p 1633–1637 CrossRef
C.M. Sellars and W.J.M. Tegart, La Relation entre la resistance et la Structure dans la deformation a Chaud, Mem. Scient. Revue Metall., 1966, 63, p 731
J. Sankar, D. Hawkins, and H.J. McQueen, Behaviour of Low-Carbon and HSLA Steels During Torsion-Simulated Continuous And Interrupted Hot Rolling Practice, Metall. Technol., 1979, 6, p 325–331 CrossRef
K. Ushioda, T. Suzuki, H. Asano, and M. Tezuka, 37th MWSP Conf. Proc., ISS, Vol XXXIII, 1996, p 897–905
D.R. Barraclough, Hot Working and Recrystallisation of a Stainless and a Low Alloy Steel, Ph.D. thesis, University of Sheffield, 1974
J.P. Hirth and L. Lothe, Diffusive Glide and Climb Process, Theory of Dislocations, McGraw Hill, New York, 1968, p 484–530
R. Sandoström, Subgrain Growth Occurring by Boundary Migration, Acta Metall., 1977, 25, p 905–911 CrossRef
N.I. Medvedeva, M.S. Park, D.C. Van Aken, and J.E. Medvedeva, First Principles Study of the Mn, Al and C Distribution and Their Effect on the Stacking Fault Energies in FCC Fe, J. Alloys Compd., 2014, 582, p 475–482 CrossRef
H. Abe, T. Suzuki, and S Okada, Decomposition of Mn-C Dipoles during Quench-Ageing in Low-Carbon Aluminium-Killed Steels, Trans. Japan Inst. Met., 1984, 25(4), p 215–225
N.I. Medvedeva, M.S. Park, D.C. van Aken, and J.E. Medvedeva, First-Principles Study of the Mn, Al, and C Distribution and Their Effect on the Stacking Fault Energies in Austenite, Missouri University of Science and Technology, Rolla, Inst. of Solid State Chem., Yekaterinburg, Russia
N.I. Medvedeva, D.C. van Aken, and J.E. Medvedeva, First Principles Study of the Mn, Al and C Distribution and Their Effect on the Stacking Fault Energies in Austenite, J. Phys. Cond. Matter., 2011, 23, p 326003
A. Caplain and W Chambron, Etude de l’interaction lacune-carbone dans l’alliage Ni-20 at.% Fe par la méthode de l’anisotropie magnétique induite, Phys. Status Solid A, 1979, 52, p 299
A. Caplain and W Chambron, Insuffisance du modele de lomer pour decrire l’interaction lacune-carbone dans l’alliage Ni-20 at.% Fe, Scripta Metall., 1977, 11, p 499.
R.B. McLellan, The Diffusivity of Lattice Atoms in Dilute Interstitial Solid Solutions, Acta Metall., 1988, 36(8), p 1923–1928 CrossRef
R.B. McLellan, The Thermodynamics of Interstitial-Vacancy Interactions in Solid Solutions, J. Phys. Chem. Solids, 1988, 49(10), p 1213–1217 CrossRef
C. Siyasiya and W Stumpf, Hot Working of Carbon-Manganese Strip Steels: The Effects of Carbon and Manganese Content, 19th IAS Steel Conference, Rolling and Steel Products, IAS, Rosario, Santa Fe, Argentina, 2013.
W Stumpf, Grain Size Modelling of a Low Carbon Strip Steel During Hot Rolling in a Compact Strip Production (CSP) Plant Using the Hot Charge Route, J. S. Afr. Inst. Min. Metall., 2003, 103, p 617–631
Y.N. Dastur and W.C. Leslie, Mechanism of Work Hardening in Hadfield Manganese Steel, Metall. Trans. A, 1981, 12, p 749 CrossRef
K. Banks, Hot Flow Stress Model for Plain C Steels Under Finishing Mill Conditions, Steel Strip Society, 8th Int. Conf. Proc., 2011, p 181
E.A. Brandes and G.B. Brooks, Eds., Smithells Metals, Ref. Book, 7th ed., Butterworth-Heinemann, Oxford, 1992.
K. Nohara and K Hirano, Trans. Iron Steel Inst. Japan, The Iron and Steel Institute of Japan, 1971, p 1267
G. Brauer and K. Popp, Neutron Embrittlement of Reactor Pressure Vessel Steels: A Challenge to Positron Annihilation and Other Methods, Phys. Status Solid B, 1987, 102, p 79–90 CrossRef
Internal Communication from ArcelorMittal South Africa, Sadhana Steel Works, 2001
- Constitutive Constants for Hot Working of Steels: The Critical Strain for Dynamic Recrystallisation in C-Mn Steels
C. W. Siyasiya
W. E. Stumpf
- Springer US
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