The effect of grain boundary junctions on grain microstructure evolution: 3D vertex simulation

被引:6
作者
Barrales-Mora, L. A. [1 ]
Shvindlerman, L. S. [1 ,2 ]
Mohles, V. [1 ]
Gottstein, G. [1 ]
机构
[1] Rhein Westfal TH Aachen, Inst Met Kunde & Met Phys, Kopernikusstr 14, D-52056 Aachen, Germany
[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
来源
RECRYSTALLIZATION AND GRAIN GROWTH III, PTS 1 AND 2 | 2007年 / 558-559卷
关键词
quadruple points; triple lines; 3D vertex model; grain growth;
D O I
10.4028/www.scientific.net/MSF.558-559.1051
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A 3D Vertex Model has been successfully implemented to investigate the evolution of a special grain assembly during grain growth. The model considers the mean curvature as driving force for the motion of the vertices and allows the consideration of all parameters affecting the motion of the system, i.e., grain boundary energy and line tension of the triple lines, as well as grain boundary (GB), triple line (TL) and quadruple point (QP) mobility as well. The used special configuration makes it possible to study the influence of all structural elements of a grain boundary network on the evolution of the system by allowing the steady-state motion of the boundaries of a shrinking grain. In the present work the different mobilities have been systematically varied and the evolution of the grain size with time has been studied as a function of TL and QP mobility. The results of the simulations are finally linked to the different kinetic regimes reached by the system.
引用
收藏
页码:1051 / +
页数:2
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