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Metallurgical and Materials Transactions A
Published in: Metallurgical and Materials Transactions A 2/2019

21-11-2018 | Communication

Modified Kocks–Mecking–Estrin Model to Account Nonlinear Strain Hardening

Authors: Krishnaswamy Hariharan, Frederic Barlat

Published in: Metallurgical and Materials Transactions A | Issue 2/2019

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Abstract

The dislocation density-based model after Kocks–Mecking–Estrin (KME) is widely used to characterize the thermally activated plastic deformation and dislocation kinetics. According to the model, the slope of the stress–strain curve decreases linearly with stress, which contradicts the experimental observation. In the current study, the evolution of dislocation density in the model is generalized to account for the nonlinearity of the slope.
next article Enhanced Refinement of Cr23C6 by Heterogeneous Nucleation in Annealed Nitrogen-Alloyed 4Cr5Mo2V Die Steel

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Appendix
Available only for authorised users
Footnotes
1
At high temperatures, the annihilation term involves additional parameters for modeling dislocation climb and other factors.[10]
 
2
For a coarse-grained structure, this factor remains constant. For smaller grains, the size effect can be included in the form of empirical Hall–Petch relation.
 
3
Barlat[15] proposed two methods of parameter identification in their paper. The parameters obtained from the least square curve fitting (Case B) are used in the current study.
 
Literature
1.
U.F. Kocks and H. Mecking: Prog. Mater. Sci., 48 (3), pp. 171–273 (2003)CrossRef
2.
3.
4.
5.
6.
7.
K. Hariharan, M.J. Kim, S.T. Hong, D. Kim, J.H. Song, M.G. Lee, H.N. Han, Mater. Des. 124, 131 (2017)CrossRef
8.
9.
10.
L.E. Lindgren, K. Domkin, S. Hansson, Mech. Mater. 40(11), 907 (2008)CrossRef
11.
12.
13.
Y. Estrin, L.S. Tóth, A. Molinari, Y. Bréchet, Acta Mater. 46(15), 5509 (1998)CrossRef
14.
15.
F. Barlat, M.V. Glazov, J.C. Brem, D. Lege, Int. J. Plast. 18(7), 919 (2002)CrossRef
16.
J. Gracio, J. Fernandes, J. Schmitt, Mater. Sci. Eng. A 118, 97 (1989)CrossRef
17.
18.
M. Greenberg, Advanced Engineering Mathematics, 2nd edn. (Pearson Education Inc., 1998)
19.
20.
21.
22.
E.I. Galindo-Nava, P.E. Rivera-Díaz-Del-Castillo, Acta Mater. 60(11), 4370 (2012)CrossRef
23.
D.A. Hughes, Q. Liu, D.C. Chrzan, N. Hansen, Acta Mater. 45(1), 105 (1997)CrossRef
24.
25.
26.
M. Zamani, H. Dini, A. Svoboda, L.E. Lindgren, S. Seifeddine, N.E. Andersson, A.E.W. Jarfors, Int. J. Mech. Sci. 121(December 2016), 164 (2017)CrossRef
Metadata
Title
Modified Kocks–Mecking–Estrin Model to Account Nonlinear Strain Hardening
Authors
Krishnaswamy Hariharan
Frederic Barlat
Publication date
21-11-2018
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 2/2019
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-018-5001-9

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