[S2] S2 Nano-mechanical characterization and multiscale modeling

4:40 PM - 5:00 PM JST(7:40 AM - 8:00 AM UTC)

[S2.11] Finite element analysis for the effect of microstructural morphology on crack initiation in MoSiBTiC alloy at room temperature

*JUNFENG DU¹, Chihana Kudo¹, Shuntaro Ida², Eri Nakagawa³, Takahito Ohmura³, Kyosuke Yoshimi⁴ (1. Tohoku Univ. (Graduate student), 2. JFCC, 3. NIMS, 4. Tohoku Univ.)

Keywords:

MoSiBTiC alloys,Microstructure,Finite element analysis,crack propagation

65Mo-5Si-10B-10TiC (at%)で構成されるMoSiBTiC合金は、高温強度とクリープ耐性に優れる一方、室温破壊靭性が低く加工性が課題。有限要素解析でミクロ組織がき裂挙動に与える影響を調査し、材料設計最適化を目指す。