Title of article
High temperature deformation of a twin-roll cast AlMg3 alloy
Author/Authors
Mلlek، نويسنده , , P. and Turba، نويسنده , , K. and Slلmovل، نويسنده , , M. and Drbohlav، نويسنده , , I.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
5
From page
1046
To page
1050
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.
Keywords
Aluminium alloys , Twin-roll casting , Superplasticity , Deformation structure , atomic force microscopy
Journal title
Materials Characterization
Serial Year
2008
Journal title
Materials Characterization
Record number
2266948
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