Paper Title:

A Preliminary Analysis on Compression Twins in Magnesium

Periodical Materials Science Forum (Volumes 546 - 549)
Main Theme Progress in Light Metals, Aerospace Materials and Superconductors
Edited by Yafang Han et al.
Pages 297-300
DOI 10.4028/www.scientific.net/MSF.546-549.297
Citation Ping Yang et al., 2007, Materials Science Forum, 546-549, 297
Online since May, 2007
Authors Ping Yang, Li Meng, Q.G. Xie, F.E. Cui
Keywords Deformation, Magnesium, Orientation, Twin
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Abstract

Basal slip and tension twinning are dominant deformation mechanisms of polycrystalline magnesium at low temperature. However, fracture originates mainly from compression twins or shear bands developed from compression twins. This work compared firstly the morphological difference of two types of twins. Then, the dependence of different deformation mechanisms on initial orientations is computed by Schmid factor analysis and compared with measured matrix orientations of twins. Finally, orientation relationships of compression twins with matrices are determined using EBSD technique and compared with theoretical value.