Abstract
We have examined the plastic deformation behavior of Mg_<12>ZnY phase having the so-called "chemical and structural modulations synchronized long-period stacking ordered (LPSO) structure". As one of the characteristic features of the deformation behavior of the synchronized LPSO phase, formation of deformation kink bands is frequently observed in deformation under the condition that the operation of basal slip is prohibited. The deformation behavior accompanied by the formation of deformation kink in synchronized LPSO phase was examined by comparing the behavior in the hcp-Zn single crystal. Deformation behavior of the directionally solidified LPSO phase crystals was examined by dynamical observation using digital microscope and SEM-EBSD analysis. The characteristic features of the deformation kink band in the LPSO phase and Zn single crystal showed many similarities, but some differences were also confirmed.
