Effect of Yttrium Addition on Glass-Forming Ability and Magnetic Properties of Fe–Co–B–Si–Nb Bulk Metallic Glass

Metals

Teruo Bitoh¹  Dai Watanabe²  K. C. Chan² 

[1] Department of Machine Intelligence and Systems Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Yurihonjo 015-0055, Japan; E-Mail

关键词: soft magnetic material;    bulk metallic glass;    iron-based alloy;    magnetization;    coercivity;   

DOI  :  10.3390/met5031127

来源: mdpi

【 摘 要 】

The glass-forming ability (GFA) and the magnetic properties of the [(Fe_0.5Co_0.5)_0.75B_0.20Si_0.05]₉₆Nb_4−xY_x bulk metallic glasses (BMGs) have been studied. The partial replacement of Nb by Y improves the thermal stability of the glass against crystallization. The saturation mass magnetization (σ_s) exhibits a maximum around 2 at. % Y, and the value of σ_s of the alloy with 2 at. % Y is 6.5% larger than that of the Y-free alloy. The coercivity shows a tendency to decrease with increasing Y content. These results indicate that the partial replacement of Nb by Y in the Fe–Co–B–Si–Nb BMGs is useful to simultaneous achievement of high GFA, high σ_s, and good soft magnetic properties.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.