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Electropulse-induced microstructural evolution in a ferritic–pearlitic 0.14% C steel

Rahnama, A. and Qin, R. S. (2015). Electropulse-induced microstructural evolution in a ferritic–pearlitic 0.14% C steel. Scripta Materialia, 96 pp. 17–20.

DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.scriptamat.2014.10.008
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Abstract

The present work reports the experimental observation of electropulse-induced microstructural evolution in a ferritic–pearlitic steel at ambient temperature. Electropulsing initially causes the fragmentation of lamellar structure. Further treatment leads to the formation of new cementite plates aligned with the current direction. This is attributed to the reduction of the system free energy. The hardness of the material decreased with an increase in the number of electric current pulses. Electrical resistivity is thought to be responsible for the observed phenomenon.

Item Type: Journal Item
Copyright Holders: 2014 Acta Materialia Inc. Published by Elsevier Ltd.
ISSN: 1359-6462
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetPOSCO
Not SetNot SetTATA
Not SetNot SetRoyal Academy of Engineering (UK)
Keywords: ferritic–pearlitic steels; electropulsing; microstructural evolution; electrical properties
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 41768
Depositing User: Rongshan Qin
Date Deposited: 20 Jan 2015 14:43
Last Modified: 29 Nov 2016 10:40
URI: http://oro.open.ac.uk/id/eprint/41768
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