Effect of annealing temperature on magnetic properties of cold rolled high silicon steel thin sheet

• Published in: Journal of alloys and compounds Vol. 491; no. 1; pp. 268 - 270
• Main Authors: Liang, Yong Feng, Ye, F., Lin, J.P., Wang, Y.L., Chen, G.L.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 18.02.2010; Elsevier
• Subjects: 6.5 wt%Si–Fe alloy; Cold rolling; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Fe and its alloys; High silicon steel; Magnetic properties; Magnetic properties and materials; Physics; Studies of specific magnetic materials; Cold rolling; 6.5 wt%Si–Fe alloy; High silicon steel; Magnetic properties; Annealing; Iron loss; 6.5 wt%Si-Fe alloy; Coercive force; Thermomechanical treatments; Magnetic sheet; Steels; Brittleness; Soft magnetic materials
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2009.10.118

6.5 wt%Si–Fe alloy has excellent soft magnetic properties, but its room temperature brittleness impedes its industrial application. In this paper, we report that 6.5 wt%Si–Fe alloy could be cold rolled to 0.03–0.05 mm in thickness after specific thermomechanical processes including forging, hot rolling, warm rolling and heat treatments. The as rolled sheets have good shape and shining metal luster. Dc and Ac magnetic properties of the 0.05 mm cold rolled 6.5 wt%Si–Fe sheets were measured in dependence of annealing temperatures and times. Higher annealing temperature is helpful for Dc properties, while Ac properties for the high frequency (>10 kHz) reach maximum at 1100 °C.