Differential Scanning Calorimetry and Metallographic Analysis of Fe-Si Electrical Steel

Abstract:

The microstructure development in cold rolled electrical steel under dynamic heat treatments was subjected to investigation. Significantly distinguish types of microstructures were obtained in the investigated steels confirming the different character of grain boundary motion. Application of annealing temperature within two phase region (austenite+ferrite) leads to abnormal grain growth in silicon steels. Moreover, in the optimum temperature range, there was a particular temperature leading to the most optimal microstructure and texture[1]. The effect of Si content on the phase transition temperature of the electrical steel (0.6, 1, 2.5, 2.9 % Si) was studied by using differential scanning calorimetry (DSC) analysis. The result indicated that DSC analysis could be used to detect the shift temperature of phase transformation in the electrical steel with different Si addition. DSC have been used in thermochemical studies and as complementary to the study of phase transformation. It can be used as a compliment to optical and electron microscopy.

• Periodical: Materials Science Forum (Volume 782)
• Pages: 129-132
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.782.129
• Online since: April 2014
• Authors: Martin Sopko, František Kováč, Ivan Petryshynets, Mária Molnárová, Petra Gavendová
• Keywords: Differential Scanning Calorimetry (DSC), Electrical Steel, Phase Transformation, Texture

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