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Abstract In this study, solid solution strengthening and dislocation strengthening is employed to fabricate high-strength electrical steels with low iron loss at a high frequency. Cast ingots with silicon content… Click to show full abstract
Abstract In this study, solid solution strengthening and dislocation strengthening is employed to fabricate high-strength electrical steels with low iron loss at a high frequency. Cast ingots with silicon content up to 4.5 wt% exhibit much lower Vickers hardness than 6.5 wt% Si steel and are feasible for forging and rolling. The cold-rolled thin sheets demonstrate good surface quality without edge cracks. The yield strength and magnetic properties can be tailored using heat treatment. Compared with data from state-of-the-art high-strength silicon steel 15HST780Y, the iron loss P1.0T/400Hz is 20% lower at the same yield strength.
Journal Title: Journal of Magnetism and Magnetic Materials
Year Published: 2019
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