Abstract
Atomistic studies of deformation-induced microstructural evolution in single crystalline metals are carried out to elucidate the mechanism of grain subdivision in a perfect crystal. We review our simulations of tensile and torsion of miniaturized models. Then, rolling of the iron nanoplate process is performed. Remarkable polycrystallization is observed in the twisting and rolling problems, compared to the tension problem. According to the results, it is concluded that the strain gradient plays an important role in grain subdivision.
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References
Finnis, M.W. and Sinclair, J.E. (1984) A simple empirical N-body potential for transition metals. Philos. Mag., A 50(653), 45–55.
Finnis, M.W. and Sinclair, J.E. (1986) Erratum. Philos. Mag., A 53(1), 161.
Hansen, N. (2001) New discoveries in deformed metals. Metall. Mater. Trans. A 32A, 2917–2935.
Honeycutt, J.D. and Andersen, H.C. (1987) Molecular dynamics study of melting and freezing of small Lennard-Jones clusters. J. Phys. Chem. 91(19), 4950–4963.
Mishin, Y., Farkas, D., Mehl, M.J. and Papaconstantopoulos, D.A. (1999) Interatomic potentials for monoatomic metals from experimental data and ab initio calculations. Phys. Rev. B 59(5), 3393–3407.
Nakatani, A., Shimokawa, T., Matsumoto, R. and Kitagawa, H. (2004) Atomistic study on ideal strength of nanocrystal and deformation induced nanostructures. Solid Mechanics and Its Applications 115, 365–380.
Saito, Y., Utsunomiya, H., Tsuji, N. and Sakai, T. (1999) Novel ultra-high straining process for bulk materials development of the accumulative roll-bonding (ARB) process —. Acta Mater. 47, 579–583.
Seefeldt, M., Delannay, L., Peeters, B., Kalidindi, S.R. and Van Houtte, P. (2001) A Disclination-based model for grain subdivision. Mat. Sci. Engng. A 319–321, 192–196.
Shimokawa, T., Nakatani, A. and Kitagawa, H. (2005) Grain-size dependence of the relationship between intergranular and intragranular deformation of nanocrystalline Al by molecular dynamics simulations. Phys. Rev., B 71, 224110 (1–8).
Sivakumar, S.M. and Ortiz, M. (2004) Microstructure evolution in the equal channel angular extrusion process. Comput. Methods Appl. Mech. Engng. 193, 5177–5194.
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Nakatani, A., Shimokawa, T. (2007). Microstructural Evolution in Crystalline Metal Induced by Plastic Deformation. In: Bai, Y.L., Zheng, Q.S., Wei, Y.G. (eds) IUTAM Symposium on Mechanical Behavior and Micro-Mechanics of Nanostructured Materials. Solid Mechanics and its Applications, vol 144. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5624-6_4
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DOI: https://doi.org/10.1007/978-1-4020-5624-6_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-5623-9
Online ISBN: 978-1-4020-5624-6
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