[G] Joining and Plastic Forming of Structural Materials

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[343] Evolution of extreme grain fragmentation in commercially pure magnesium during severe plastic deformation

○Nikhil Thulaseedharan Nair Girijakumari^1,3, Sanika A Paranjape³, Inoue Shin-ichi^1,2, Kawamura Yoshihito^1,2, Satyam Suwas³, Satish Vasu Kailas³ (1. Kumamoto Univ., 2. MRC, 3. IISc.)

Keywords:

Severe Plastic Deformation,Magnesium,Dynamic recrystallization,Microstructure evoution

A novel high-strain processing method was applied to pure magnesium, and the microstructure evolution associated with material flow was investigated. EBSD analysis confirmed grain refinement accompanied by twinning and dynamic recrystallization. It was revealed that grain refinement proceeds through the coordinated action of TDRX and CDRX.