Statistical behaviour of interfaces subjected to curvature flow and torque effects applied to microstructural evolutions
Abstract
The movement of grain boundaries in pure metals and alloys with a low concentration of dislocations has been historically proved to follow curvature flow behavior. This mechanism is typically known as grain growth (GG). However, recent 3D in-situ experimental results tend to question this global picture concerning the influence of the curvature on the kinetics of interface migration. This article explains, thanks to 2D anisotropic full-field simulations, how the torque effects can complexify these discussions. It is then illustrated that neglecting torque effects in full-field formulations remains potentially a strong hypothesis. The apparent mobility can be much more complex than expected without necessarily questioning the influence of the curvature on the local kinetic equation.
Keywords
Cite
@article{arxiv.2106.05605,
title = {Statistical behaviour of interfaces subjected to curvature flow and torque effects applied to microstructural evolutions},
author = {Sebastian Florez and Karen Alvarado and Brayan Murgas and Nathalie Bozzolo and Dominique Chatain and Carl E. Krill and Mingyan Wang and Greg S. Rhorer and Marc Bernacki},
journal= {arXiv preprint arXiv:2106.05605},
year = {2021}
}