| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1572854 | Materials Characterization | 2008 | 5 Pages |
Abstract
The high temperature plastic deformation of twin-roll cast AlMg3 (AA5754) sheets was investigated. The maximum value of the strain rate sensitivity parameter m = 0.4 suggests superplastic behaviour. However, the maximum ductility of 135% remains below the bottom limit of superplasticity. The investigation of the surface of strained samples using light microscopy and AFM revealed grain boundary sliding at conditions corresponding to the maximum m and dislocation slip in the grain interiors at conditions corresponding to low values of m.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
P. Málek, K. Turba, M. Slámová, I. Drbohlav,