[17p-K308-1~12] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[17p-K308-2] Formation and Bonding of Icosahedral Clusters in Fe–Si–B Amorphous Alloys during the Melt-Quench Process

Ryohei Ikebuchi¹, Masato Shimono², 〇Naomi Hirayama¹ (1.Shimane Univ., 2.NIMS)

Keywords:

amorphous metal,machine learning,molecular dynamics simulation

Fe–Si–B-based amorphous alloys are known for their excellent soft magnetic properties and are attracting attention as motor core materials. In this study, we performed molecular dynamics simulations using a machine learning potential to form amorphous structures via the melt-quenching process. As a result, Si-centered icosahedral clusters increased near the glass transition temperature. As the temperature decreased, clusters rapidly bonded, leading to the formation of MRO networks that included both perfect and deformed icosahedral structures.