Three-dimensional character of the deformation twin in magnesium.

ABSTRACT: Deformation twins are three-dimensional domains, traditionally viewed as ellipsoids because of their two-dimensional lenticular sections. In this work, we performed statistical analysis of twin shapes viewing along three orthogonal directions: the 'dark side' (DS) view along the twin shear direction (η₁), the twinning plane normal (TPN) view (k₁) and the 'bright side' (BS) view along the direction λ(=k₁ × η₁). Our electron back-scatter diffraction results show that twins in the DS and BS views normally exhibit a lenticular shape, whereas they show an irregular shape in the TPN view. Moreover, the findings in the TPN view revealed that twins grow faster along λ the lateral direction than along η₁ the forward propagation direction at the

SUBMITTER: Liu Y 

PROVIDER: S-EPMC6658514 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature