| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1501801 | Scripta Materialia | 2008 | 4 Pages |
Abstract
An extraordinary microstructure with mean grain size of 1.77 μm accompanying fine grains of 150 ± 50 nm was obtained for magnesium alloy AZ31 by cyclic extrusion compression (CEC). The ductility improved 2.2 times while yield strength decreased 50 MPa after CEC 7 passes compared with as-extruded alloy. A compound grain-refining mechanism was proposed to explain the microstructure evolution during CEC. Dislocation density, texture and grain-boundary structure were employed to clarify the relationship between microstructure and mechanical properties of AZ31 alloy after CEC.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Y.J. Chen, Q.D. Wang, H.J. Roven, M.P. Liu, M. Karlsen, Y.D. Yu, J. Hjelen,