Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1447622 | Acta Materialia | 2011 | 7 Pages |
Abstract
The migration of a grain boundary system with ridges of the first order is studied. A theory of steady-state motion of a grain boundary half-loop with facets and ridges is elaborated. The shape and properties of a moving grain boundary which contains additional structural elements (curved segments, facets and ridges of the first order) are addressed. The major kinetic parameters (mobility and its activation enthalpy) of a “rough-to-rough” grain boundary ridge of the first order were measured. It is shown that the steady-state motion of a boundary half-loop with facets and ridges complies with the principle of maximum rate of free energy dissipation.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
V.G. Sursaeva, G. Gottstein, L.S. Shvindlerman,