Deakin University
Browse

Characteristics of the contraction twins formed close to the fracture surface in Mg-3A1-1Zn alloy deformed in tension

journal contribution
posted on 2008-11-01, 00:00 authored by Pavel CizekPavel Cizek, Matthew BarnettMatthew Barnett
Characteristics of the “contraction” twins, formed close to the fracture surface in Mg–3Al–1Zn alloy deformed in tension approximately perpendicular to the grain c-axes, are investigated using transmission electron microscopy. The grain c-axis contractions were largely accommodated by {1011}-{1012} source double-twins in a variant characterized by 38° ⟨1210⟩ source twin/matrix misorientation in conjunction with dislocation slip. A possible interpretation of the observed preference for this variant formation is given and some crystal plasticity modelling is performed to elucidate the matter.

History

Journal

Scripta Materialia

Volume

59

Pagination

959 - 962

Location

Oxford, England

ISSN

1359-6462

eISSN

1872-8456

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Elsevier