Publication Type
Conference Paper
Book Title
TMS 2007 Symposium proceedings
Publication Date
Page Number
55
Conference Name
TMS Annual meeting 07
Conference Location
Orlando, Florida, United States of America
Conference Date
-
Abstract
Grain boundary migration of flat symmetric tilt grain boundaries is simulated using molecular dynamics. The driving force for migration is achieved by applying uniaxial strain on one of the grains in the bicrystal, enabling the growth of strain free grain at the expense of strained grain. Arrhenius dependence of grain boundary mobility on temperature and a linear relation between mobility and grain boundary velocity are observed. Simulations suggest that the mechanism of migration is dependent on vacancy diffusion combined with local reshuffling of atoms near the grain boundary.
