Mg的{101̅2}形变孪晶机制*
单智伟(),刘博宇
THE MECHANISM OF {101̅2} DEFORMATION TWINNING IN MAGNESIUM
Zhiwei SHAN(),Boyu LIU

图1. fcc晶体中的111孪晶的孪生要素[38]

Fig.1. Twinning elements of 111 twin in fcc structure[38] (K1 is the first undistorted (invariant) plane, K2 is the second undistorted (conjugate) plane, η1 is the shear direction, η2 and η2 are the conjugate shear directions in matrix and twin, respectively. °and ? represent alternative (11?0) planes. A, B and C represent the stacking sequence of (111) planes. a refers to the lattice constant. Dashed lines towards lower right are traces of (111) planes)