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Excellent soft magnetic properties and enhanced glass forming ability of Fe-Si-B-C-Cu nanocrystalline alloys by Jifeng Zhou; Xue Wang; Junhua You; Jing Pang; Xiaoyu Li; Keqiang Qiu is a Materials Science article available to read on EtoBox.

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In the present investigation, the glass forming ability (GFA), thermal stability, and soft magnetic properties of Fe 85 Si 6-x B 8 Cu 1 C x alloys are investigated by the substitution of C for Si. It was found that the GFA of Ccontaining alloys is remarkably enhanced when a certain amount of Si is replaced by C in a C-free alloy. The temperature interval between the first and second crystallization temperatures is also improved by C addition and reaches a maximum value of 169 °C for the as-spun Fe 85 Si 2 B 8 Cu 1 C 4 amorphous alloy. The Fe 85 Si 4 B 8 Cu 1 C 2 nanocrystalline alloy exhibits the best soft magnetic properties with the highest saturation magnetic flux density (B s ) of 1.95 T and the lowest coercivity (H c ) of 4.1 A/m, which corresponds to the highest grain number density (N d ). The high GFA, large annealing window, low cost, and excellent soft magnetic properties enable the Fe 85 Si 2 B 8 Cu 1 C 4 nanocrystalline alloy as a material with wide applicability. Moreover, this work is highly beneficial in balancing the relationship between a high B s and sufficient GFA in the production of Fe-rich nanocrystalline alloys.

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Author

Jifeng Zhou; Xue Wang; Junhua You; Jing Pang; Xiaoyu Li; Keqiang Qiu

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Materials Science (Physical Sciences)