Neutron diffraction analysis method to elucidate deformation mechanisms of metals with multimodal-structures and -deformation modes

Harjo, S.   ; Gong, W.   ; Kawasaki, Takuro   ; Mao, W.; Yamasaki, Michiaki*

Many advanced metallic materials composed of not only multiphases but also multi-morphological structures within one of the constituent phases, so-called multimodal structure metallic material. In this presentation, we will introduce and discuss our methods to understand the deformation behavior in metallic materials with multimodal structure, using a case of strengthening of Mg and long-period stacking ordered phases in a Mg-Zn-Y alloy by hot-extrusion with low extrusion ratio.