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The Effect of Hot‐ and Cold‐Rolling on the Electropulse‐Induced Microstructure and Property Changes in Medium Carbon Low Alloy Steels
Author(s) -
Yu W. P.,
Qin R. S.,
Wu K. M.
Publication year - 2013
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201200179
Subject(s) - microstructure , materials science , metallurgy , elongation , alloy , hot rolled , ultimate tensile strength , carbon fibers , composite material , composite number
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.