Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7881002 | Acta Materialia | 2014 | 8 Pages |
Abstract
The present study validates the previously reported investigations about segregation of rare-earth (RE) elements at grain boundaries in Mg-RE alloys and ultimately provides a direct visualization of the distribution of the solute atoms in the structure of a Mg-Gd alloy. It is demonstrated that Gd forms a solid solution within the Mg matrix in addition to substantial segregation at high-angle grain boundaries in the form of 1-2Â nm clusters, with a postulated face-centered cubic Gd structure. The results suggest significant implications for the texture development during alloy processing and recrystallization, and thus for the mechanical behavior and properties of Mg-RE alloys.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M. Bugnet, A. Kula, M. Niewczas, G.A. Botton,