The effect of hot- and cold-rolling on the electropulse-induced microstructure and property changes in medium carbon low alloy Steels

Yu, W. P.; Qin, R. S. and Wu, K. M. (2013). The effect of hot- and cold-rolling on the electropulse-induced microstructure and property changes in medium carbon low alloy Steels. Steel Research International, 84(5) pp. 443–449.

DOI: https://doi.org/10.1002/srin.201200179

Abstract

The application of electropulse to hot-rolled and cold-rolled, medium carbon low alloy steels has generated completely different effects. For cold-rolled steel samples, electropulsing treatment causes microstructure refinement and, hence, increments in tensile strength, yield strength, and elongation. For hot-rolled steels, the effect of electropulsing is found to be negligible. This proves the importance of dislocations in the micromechanism of electropulse-induced microstructure transformation in solids. The optimal electropulse parameters for the improvement of cold-rolled steels are observed. The experimental observations are explained within the frameworks of thermodynamics and kinetics of microstructure transformation.

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