[P] P248~P271 Structural Materials

[P263] Ductilization of multimodally grained Mg-Y-Zn alloys in cryogenic tensile deformation

○Riko Fujisaki¹, Soya Nishimoto¹, Stefanus HARJO², Wu GONG², Koji Hagihara³, Tsuyoshi Mayama¹, Michiaki Yamasaki¹ (1. Kumamoto Univ., 2. JAEA, 3. Nagoya Inst. Tech.)

Keywords:

Mg alloys,AMID mechanism,cryo mechanical properties

Recently, the AMID mechanism has been proposed as the factor improving ductility with high strength of the extruded Mg-Y-Zn alloys. At RT, the AMID mechanism in worked LPSO enhance the ductility. In this study, tensile behavior at 77 K was investigated to observe the AMID mechanism in worked α-Mg.