The Effect of on the ElectropulseInduced Microstructure Changes in Medium Carbon Low Alloy Steels.pdf

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The Effect of on the ElectropulseInduced Microstructure Changes in Medium Carbon Low Alloy Steels.pdf

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The Effect of on the ElectropulseInduced Microstructure Changes in Medium Carbon Low Alloy Steels

www.steel-research.de F The Effect of Hot- and Cold-Rolling on the U L L Electropulse-Induced Microstructure and Property P A P E Changes in Medium Carbon Low Alloy Steels R W. P. Yu, R. S. Qin, and K. M. Wu 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 exp