[G] Alloys, Amorphous and Quasicrystals

1:00 PM - 1:15 PM JST(4:00 AM - 4:15 AM UTC)

[229] Crystallization control of metastable Fe₂₃B₆ by third element addition for improving glass-forming ability of Fe-B amorphous alloys

○Koki Shimizu¹, Rui Yamada², Masanori Enoki³, Junpei T. Okada⁴, Takeshi Wada², Hidemi Kato² (1. Tohoku Univ. Graduate Schools of Engineering, 2. Tohoku Univ. Institute for Materials Research, 3. Shimane Univ. Faculty of Materials for Energy, 4. Tohoku Univ. International Center for Synchroton Radiation Innovation Smart)

Keywords:

Fe-B amorphous alloys,metastable Fe23B6,third-element addition

Using first-principles calculations and liquid quenching, we controlled metastable Fe₂₃B₆ crystallization via third-element addition in Fe-B amorphous alloys. Promoting Fe₂₃B₆ against equilibrium α-Fe induced phase competition, which successfully enhanced the glass-forming ability.