Experiments revealed surface polishing improves magnetic properties in amorphous alloys, indicating enhanced performance potential.
Fe 73.5 Cu 3 Nb 1 Si 13.5 B 9 amorphous ribbon with a thickness of about 30 μm was prepared by the single-roll liquid-rapid-cooling method. The ribbons were subjected to surface mechanical polishing with 2 ~ 4 μm thickness removed in order to obtain excellent soft magnetic properties. It was found that the surface mechanical polishing significantly enhanced the magnetic properties of Fe 73.5 Cu 3 Nb 1 Si 13.5 B 9 alloy by reducing the roughness, eliminating the stress, and removing the oxide layer.
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Bao-jia et al. (2025) studied this question.
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