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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 BarnettCharacteristics 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 MaterialiaVolume
59Issue
9Pagination
959 - 962Publisher
PergamonLocation
Oxford, EnglandPublisher DOI
ISSN
1359-6462eISSN
1872-8456Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2008, ElsevierUsage metrics
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Keywords
magnesium alloysplastic deformationtransmission electron microscopy (TEM)twinningmisorientationScience & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringScience & Technology - Other TopicsMaterials ScienceMAGNESIUM ALLOYDEFORMATIONMGMICROSTRUCTURESTEXTURES