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On the glass forming ability (GFA), crystallization behavior and soft magnetic properties of nanomet-substituted alloys
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran..
UCC, Tyndall Natl Inst, Cork T12 R5CP, Ireland..
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0003-2170-0076
2020 (English)In: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 529, article id 119774Article in journal (Refereed) Published
Abstract [en]

This study was aimed to investigate the effect of substitution of Fe with Co, C, and Mo on the glass forming ability (GFA), crystallization behavior, and magnetic properties of Fe-B-Si-P-Cu (Nanomet) alloy. The thermodynamic parameters, P-HS and P-HSS, were used to guide towards increased GFA. The P-HSS enhanced from -2.04 kJ/mol for Nanomet to -4.83 kJ/mol for a Co4C1Mo1 (at.%) substituted alloy. As a result, the critical quench rate reduced significantly, manifested as a drop of the required rotational speed from 3000 rpm to 2000 rpm. The temperature interval between two crystallization peaks enlarged for the substituted alloy, allowing a broader annealing range for nanocrystallization. The saturation magnetization (M-S) and the coercivity (H-C) were nearly maintained. This work confirms the relevance of the parameters P-HS and P-HSS to improve the GFA of the Nanomet alloy, and it is suggested that the same strategy can be applied for other alloys.

Place, publisher, year, edition, pages
ELSEVIER , 2020. Vol. 529, article id 119774
Keywords [en]
Nanomet, Glass forming ability, P-HSS, Soft magnetic properties, Coercivity
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-269478DOI: 10.1016/j.jnoncrysol.2019.119774ISI: 000513291200011Scopus ID: 2-s2.0-85076250204OAI: oai:DiVA.org:kth-269478DiVA, id: diva2:1413286
Note

QC 20200310

Available from: 2020-03-10 Created: 2020-03-10 Last updated: 2020-03-10Bibliographically approved

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Ström, Valter

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