Effect of material parameters on iron losses in non-oriented electrical steel sheets

摘要

The effect of Si content, grain size and thickness on iron losses in non-oriented electrical steels sheets were investigated. The non-oriented electrical sheets with larger grain sizes have higher permeabilities, lower hysteresis losses and higher eddy current losses. However, the effect of grain size is weaker at higher magnetic fluxes. The ratios of eddy current losses to values due to classical theory increase sharply in thinner non-oriented electrical sheets.