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Metals 2015, 5(3), 1127-1135; doi:10.3390/met5031127

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

Department of Machine Intelligence and Systems Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Yurihonjo 015-0055, Japan
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Author to whom correspondence should be addressed.
Academic Editors: K. C. Chan and Jordi Sort Viñas
Received: 28 April 2015 / Revised: 20 June 2015 / Accepted: 23 June 2015 / Published: 29 June 2015
(This article belongs to the Special Issue Metallic Glasses)
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Abstract

The glass-forming ability (GFA) and the magnetic properties of the [(Fe0.5Co0.5)0.75B0.20Si0.05]96Nb4−xYx 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 (σs) exhibits a maximum around 2 at. % Y, and the value of σs 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 σs, and good soft magnetic properties. View Full-Text
Keywords: soft magnetic material; bulk metallic glass; iron-based alloy; magnetization; coercivity soft magnetic material; bulk metallic glass; iron-based alloy; magnetization; coercivity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Bitoh, T.; Watanabe, D. Effect of Yttrium Addition on Glass-Forming Ability and Magnetic Properties of Fe–Co–B–Si–Nb Bulk Metallic Glass. Metals 2015, 5, 1127-1135.

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