[J] JIMM-ISIJ Joint Session Materials science of martensitic and bainitic transformations and its applications

2:20 PM - 2:40 PM JST(5:20 AM - 5:40 AM UTC)

[J36] Effects of subgrains on superelastic behavior in Fe-Mn-Al-Ni alloy

○Mahiro Kubo¹, Sheng Xu^1,2, Kerui Song^1,2, Ryosuke Kainuma¹, Toshihiro Omori¹ (1. Graduate School of Engineering, Tohoku Univ., 2. FRIS, Tohoku Univ.)

Keywords:

Superelastic alloy,Fe-Mn-Al-Ni alloy,Martensite transformation,Subgrain,Cyclic heat treatment

Subgrains have been reported to potentially deteriorate the superelastic properties of Fe–Mn–Al–Ni alloy. In this study, the effects of subgrains formed by cyclic heat treatment on the superelastic behavior of Fe–Mn–Al–Ni alloy was investigated through uniaxial tensile tests, in-situ observations, and EBSD analysis.