Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501425 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Like other interfaces, equilibrium grain boundaries are smooth at low temperature and rough at high temperature; however, little attention has been paid to roughening except for faceting boundaries. Using molecular dynamics simulations of face-centered cubic Ni, we studied two closely related grain boundaries with different boundary planes. In spite of their similarity, their boundary roughening temperatures differ by several hundred degrees, and boundary mobility is much larger above the roughening temperature. This has important implications for microstructural development during metallurgical processes.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
David L. Olmsted, Stephen M. Foiles, Elizabeth A. Holm,