Effect of High Density Electropulsing Current on Microstructure and Mechanical Properties of Fe-6.5wt.%Si Alloy Sheet

Abstract:

Fe-6.5wt.%Si alloy is an excellent soft magnetic material. Due to the appearance of ordering structures, the alloy shows poor ambient temperature ductility, and can only be cold rolled by specific rolling process. The rolling process with heat treatment is complex and time consuming. Meanwhile, high-energy electropulsing shows electroplastic effect. Heat treatment effect of the high-density electropulsing on microstructure and mechanical properties were investigated. The hot rolled sheet with 1 mm in thickness could be uniformly recrystallized in 33 s at 690 oC by appropriate high density pulses and the ductility was improved in comparison to the conventional heat treatment in a furnace. After the electropulsing treatment, the hot rolled sheet could be warm rolled by 50% reduction of the thickness after one pass without edge crack.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 1236-1241
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.1236
• Online since: June 2017
• Authors: Y.Y. Liu, Y.F. Liang, S.B. Wen, Feng Ye*, J.P. Lin
• Keywords: Fe-6.5wt.%Si Alloy, High-Density Electropulsing, Mechanical Properties, Recrystallization

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