Constitutive Modeling of Stress-Strain Curves of IF Austenite


Article Preview

Industry hot deformation processes such as hot rolling are complex in nature. Setting up a rolling mill requires precise knowledge of the loads needed to shape the metal. This in turn, demands the ability to predict the strength of the material when deformed to a value of strain and strain rate at a given temperature. On and off-line models need, however, to be fed with constitutive equations relating the stresses required to deform a certain metal under the usual process variables. This paper shows how a set of stress-strain curves can be modeled so that both hardening and softening mechanisms commonly present during hot deformation are taken into account. The model predictions are compared to a set of literature data in order to be validated. Reasonable agreement between published results and predicted values were obtained indicating how efficiently the model can assess values of stresses under hot working conditions.



Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran




R. E. Lino and R. Barbosa, "Constitutive Modeling of Stress-Strain Curves of IF Austenite", Materials Science Forum, Vols. 539-543, pp. 4202-4207, 2007

Online since:

March 2007




[1] C. M. Sellars: Czech. J. Phys., 35 (1985), 239.

[2] K.P. and Rao and E.B. Hawbolt: Can. Metall. Quart., 32 (1993), 165.

[3] F. Siciliano Jr., K. Minami, T.M. Maccagno and J.J. Jonas: ISIJ Int., 36 (1996) No. 12, 1500.

[4] F. Siciliano, Jr. and J.J. Jonas: Metall. and Mater. Trans., 31 (2000), 511.

[5] S.B. Davenport, N.J. Silk, C.N. Sparks and C.M. Sellars: Mater. Sci. and Tech., 16 (2000), 239.

[6] J.J. Jonas: ISIJ Int., 40 (2000) No. 8, 731.

[7] W.A. Wong and J.J. Jonas: Trans. TMS-ASME, 242 (1968), 2271.

[8] C. M. Sellars and W. J. McG. Tegart: Int. Met. Rev., 17 (1972), 1.

[9] N.D. Ryan and H.J. McQueen: J. Mater. Proc. Technol, 21 (1990), 177.

[10] H. J. McQueen: Metall. and Mater. Trans., 33A (2002), 345.

[11] J.J. Jonas, C.M. Sellars and W.J. McG. Tegart: Metall. Rev., 14 (1969), 1.

[12] C. A. C. Imbert and H.J. McQueen: Mater. Sci. and Tech., 18 (2000), 524.

[13] A. M. Elwazri, P. Wanjara and S. Yue: Mater. Sci. and Eng. A, 339 (2003), 209.

[14] S.F. Medina and C.A. Hernandez: Acta Mater. 44(1996), 137.

[15] S-H Cho, K-B Kang and J.J. Jonas: ISI Int., 41 (2001) No. 7, 766.

[16] D.S. Fields and W.A. Backofen: American Soc. for Testing and Materials, 57 (1957), 1259.

[17] F. Boratto, R. Barbosa, S. Yue and J.J. Jonas: Thermec 88, ISIJ, Tokyo (1988), 383.

[18] E. I. Poliak and J.J. Jonas: ISIJ Int., 43 (2003), No. 5, 684.

[19] E. I. Poliak and J.J. Jonas: ISIJ Int., 43 (2003), No. 5, 692.

[20] Y. Estrin and H. Mecking: Acta Metall., 32 (1984) 57.

[21] S. H. Zahiri, C. H. J. Davies and P. D. Hodgson: Scripta Mater., 52 (2005), 299.

[22] A. Najafi-Zadeh, S. Yue and J. J. Jonas: ISIJ Int., 32 (1992) No. 2, 213.

[23] K. Minami, F. Siciliano Jr., T.M. Maccagno and J.J. Jonas: ISIJ Int., 36 (1996) No. 12, 1507.

[24] Y. Misaka and T. Yoshimoto: J. Jpn. Soc. Technol. Plast., 8 (1967-8), 414.

Fetching data from Crossref.
This may take some time to load.