Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500263 | Scripta Materialia | 2011 | 4 Pages |
Abstract
The formation of anomalous indentations, with two opposite faces describing a pin-cushion effect and the other two faces normal, in long elongated grains of an extruded Mg–2Al–1Zn alloy is reported. Subsurface microstructural observations combined with Schmid factor calculations suggest that extension twinning accompanied by basal slip are the reasons for these. Johnson’s expanding cavity model is invoked for further substantiation.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
S. Gollapudi, M.A. Azeem, A. Tewari, U. Ramamurty,