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US 2026/0297710 A1Published application
Fecov based alloy sheet and manufacturing method of the same
AssigneeResearch Institute of Industrial Science & Technology
InventorsYong Chan KIM, Eon Byeong PARK, II Lock SEO, Gab Sik BYUN
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Abstract
The FeCoV alloy-based thin plate according to the present invention comprises γ-austenite and residual α-ferrite, and is characterized in that an average size of grains is 50 to 100 m.
Claims20
An FeCoV alloy-based thin plate, comprising:
- γ-austenite;
- and residual α-ferrite, wherein an average size of grains is 50 to 100 m.
An FeCoV alloy-based thin plate, having:
- a first peak in a range where 2θ is 42° to 47°;
- a second peak in a range where 2θ is 62° to 67°;
- and a third peak in a range where 2θ is 80° to 85°, in an X-ray diffraction chart obtained by XRD analysis.
A method for manufacturing an FeCoV alloy-based thin plate, comprising:
- preparing an FeCoV alloy-based plate material;
- heat-treating the FeCoV alloy-based plate material at 600° C. to 1,200° C. for 10 minutes to 240 minutes to transform at least a portion of an α-ferrite phase into a γ-austenite phase;
- quenching the heat-treated FeCoV alloy-based plate material;
- and cold-rolling the quenched FeCoV alloy-based plate material to obtain an FeCoV alloy-based thin plate.
1 more element
Dependencies are inferred from the claim text.