[P] P65~P82

[P72] Tailoring Deformation Pathways in Ni-Free ODS Austenitic Alloys for Strength–Ductility Optimization under Ambient and Elevated Temperatures toward Nuclear Fusion Applications

*Diancheng Geng¹, Rama Varanasi¹, Zimo Gao^1,2, Kota Mizuguchi^1,2, Minha Park¹, Yasuyuki Ogino¹, Hao Yu¹, Sosuke kondo¹, Koji Inoue¹, Akira Hasegawa¹, Junichi Miyazawa³, Motomichi Koyama¹, Ryuta Kasada¹ (1. IMR, Tohoku Univ., 2. Graduate School of Engineering, Tohoku Univ., 3. Helical Fusion Co., Ltd.)

Keywords:

Oxide-dispersion strengthened austenitic alloys,Twinning-induced plasticity,Strength-ductility balance

Niを含む従来型ODSオーステナイト合金に代わる低放射化型ODS合金を設計しました。本合金は高温力学特性を維持しつつ、室温では双晶誘起変形により優れた強度–延性バランスを示しました。