Simulations of boundary migration during recrystallization using molecular dynamics

作者: Rasmus B. Godiksen , Zachary T. Trautt , Moneesh Upmanyu , Jakob Schiøtz , Dorte Juul Jensen

DOI: 10.1016/J.ACTAMAT.2007.07.055

关键词:

摘要: We have applied an atomistic simulation methodology based on molecular dynamics to study grain boundary migration in crystalline materials, driven by the excess energy of dislocation arrangements. This method is used simulate recrystallization metals. The simulations reveal that process not uniform as assumed many models, but boundaries migrate irregular fashion and exhibit a strong dependence local presence dislocations, which can distort significantly.

参考文章(31)
Julia R. Weertman, Johannes Weertman, Elementary Dislocation Theory ,(1992)
J.H. Driver, D. Juul Jensen, N. Hansen, Large strain deformation structures in aluminium crystals with rolling texture orientations Acta Metallurgica Et Materialia. ,vol. 42, pp. 3105- 3114 ,(1994) , 10.1016/0956-7151(94)90408-1
H.W. Hesselbarth, I.R. Göbel, Simulation of recrystallization by cellular automata Acta Metallurgica Et Materialia. ,vol. 39, pp. 2135- 2143 ,(1991) , 10.1016/0956-7151(91)90183-2
E.M Lauridsen, H.F Poulsen, S.F Nielsen, D Juul Jensen, Recrystallization kinetics of individual bulk grains in 90% cold-rolled aluminium Acta Materialia. ,vol. 51, pp. 4423- 4435 ,(2003) , 10.1016/S1359-6454(03)00278-7
Jakob Schiøtz, Karsten W Jacobsen, A Maximum in the Strength of Nanocrystalline Copper Science. ,vol. 301, pp. 1357- 1359 ,(2003) , 10.1126/SCIENCE.1086636
R. Le Gall, G. Liao, G. Saindrenan, In-situ SEM studies of grain boundary migration during recrystallization of cold-rolled nickel Scripta Materialia. ,vol. 41, pp. 427- 432 ,(1999) , 10.1016/S1359-6462(99)00109-8
R. A. Vandermeer, D. Juul Jensen, E. Woldt, Grain boundary mobility during recrystallization of copper Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 28, pp. 749- 754 ,(1997) , 10.1007/S11661-997-1002-9
Niels Hansen, Dorte Juul Jensen, Development of microstructure in FCC metals during cold work Philosophical transactions - Royal Society. Mathematical, physical and engineering sciences. ,vol. 357, pp. 1447- 1469 ,(1999) , 10.1098/RSTA.1999.0384
H Yoshida, B Liebmann, K Lücke, Orientation of recrystallized grains in strained aluminum single crystals Acta Metallurgica. ,vol. 7, pp. 51- 56 ,(1959) , 10.1016/0001-6160(59)90167-1
Z. T. Trautt, M. Upmanyu, A. Karma, Interface mobility from interface random walk. Science. ,vol. 314, pp. 632- 635 ,(2006) , 10.1126/SCIENCE.1131988