Correlation of Titanium Content and Core Loss in Non-oriented Electrical Steel Sheets
نویسنده
چکیده
The core loss of electrical steel is defined as the dissipation of electrical energy in the form of heat during magnetization by an alternating current. Many efforts have been made to reduce the core loss. Numerous parameters, including the chemical composition and the metallurgical technology, influence the properties of the steel. Electrical steel sheets are mainly produced from Fe-Si-C alloys. Non-oriented electrical steels contain, in addition to the important alloying elements Si, Al and Mn, other elements as well. Non-oriented electrical steels are produced from scrap steel, and therefore impurity elements (Ti, Cu, Sn, etc.) can be found in the steel. These trace elements can influence the characteristics of electrical steels 1-4 . In this study the influence of titanium on the core loss of non-oriented electrical steel sheet was investigated. The study included a statistical analysis of the data set for the cold-rolled steel samples with different amounts of titanium. SEM and ESD were used in the metallographic analyses of the titanium inclusions.
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