Abstract
AbstractThe 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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