Abstract
A generalized three-term mechanical threshold stress (MTS) strength model description, considering athermal, thermal, and strain-hardening contributions to flow stress, is employed to characterize the constitutive stress-strain response of HY-100 steel. Aspects of the MTS framework pertinent to United States Navy HY steels are discussed, and a calibration methodology is presented for determining MTS strength model parameters. In addition, a linear strain-hardening modification to the existing structure-evolution expression (flow-stress saturation) is proposed to better describe the large-strain strain-hardening behavior. Polycrystalline plasticity calculations suggest that the linear-like hardening behavior is a consequence of deformation-path-dependent texture evolution. Calculation results are applied to MTS model stress-strain predictions and, in part, help explain the differences between compression and torsion test data.
Similar content being viewed by others
References
H.U. Mair and R.K. Garrett, Jr.: in Constitutive Laws: Theory, Experiments and Numerical Implementation, A.M. Rajendran and R.C. Batra, eds., CIMNE, Barcelona, 1995, pp. 1–17.
U.F. Kocks, A.S. Argon, and M.F. Ashby: Thermodynamic and Kinetics of Slip, Progress in Materials Science, Pergamon Press, NY, 1975, vol. 19.
U.F. Kocks: J. Eng. Mater. Technol. New York, 1976, vol. 98, pp. 76–85.
H. Mecking and U.F. Kocks: Acta Metall., 1981, vol. 29, pp. 1865–75.
P.S. Follansbee and U.F. Kocks: Acta Metall., 1988, vol. 36, pp. 81–93.
U.F. Kocks, J.S. Kallend, A.D. Rollett, and S.I. Wright: Report No. LA-CC-89-18, Los Alamos National Laboratory, Los Alamos, NM, 1994.
P.J. Maudlin and S.K. Schiferl: Comput. Meth. Appl. Mech. Eng., 1996, vol. 131, pp. 1–30.
R. Hill: The Mathematical Theory of Plasticity, Oxford University Press, London, 1950.
S.R. Chen and G.T. Gray III: Report No. LA-UR-96-3534, Los Alamos National Laboratory, Los Alamos, NM, 1996.
E. Voce: J. Inst Met., 1948, vol. 74, pp. 537–62.
S.R. Chen and G.T. Gray III: Los Alamos National Laboratory, Los Alamos, NM, unpublished research, 1998.
Y. Tomita: Mater. Sci. Technol. 1991, vol. 7, pp. 299–306.
C.W. MacGregor and J.C. Fisher: J. Appl. Mech., 1946, vol. 68, pp. A11-A16.
S.R. Chen and G.T. Gray III: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 2994–3006.
A. Beaudoin, Jr.: University of Illinois, Urbana-Champaign, Urbana, IL, private communication, 1998.
S.R. Chen and G.T. Gray III: J. Phys. IV France, 1997, vol. 7, pp. C3-741–C3-746.
U.F. Kocks, M.G. Stout, and A.D. Rollett: in Strength of Metal and Alloys, ICSMA 8, P.O. Kettunen, T.K. Lepisto, and M.E. Lehtonen, eds., Pergamon Press, Oxford, United Kingdom, 1988, pp. 25–34.
R.K. Garrett, Jr., D.M. Goto, and J. Bingert: Los Alamos National Laboratory, Los Alamos, NM, unpublished research, 1998.
X.F. Fang and W. Dahl: Mater. Sci. Eng., 1995, vol. A203, pp. 14–25.
A.D. Rollett: Ph.D. Thesis, Drexel University, Philadelphia, PA, 1988.
D. Kuhlmann-Wilsdorf: Metall. Trans. A, 1985, vol. 16A, pp. 2091–2108.
D. Kuhlmann-Wilsdorf and N. Hansen: Metall. Trans. A, 1989, vol. 20A, pp. 2393–97.
X.F. Fang and W. Dahl: Mater. Sci. Eng., 1995, vol. A203, pp. 36–45.
U.F. Kocks: in Texture and Anisotropy: Preferred Orientations in Polycrystals and Their Effect on Material Properties, U.F. Kocks, C.N. Tomé, and H.-R. Wenk, eds., Cambridge University Press, Cambridge, United Kingdom, 1998, p. 398.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Goto, D.M., Garrett, R.K., Bingert, J.F. et al. The mechanical threshold stress constitutive-strength model description of HY-100 steel. Metall Mater Trans A 31, 1985–1996 (2000). https://doi.org/10.1007/s11661-000-0226-8
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-000-0226-8