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: https://doi.org/10.1016/j.scriptamat.2014.10.008

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.

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• Item ORO ID
• 41768
• Item Type
• Journal Item
• ISSN
• 1359-6462
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	POSCO
  Not Set	Not Set	TATA
  Not Set	Not Set	Royal Academy of Engineering (UK)

• Keywords
• ferritic–pearlitic steels; electropulsing; microstructural evolution; electrical properties
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2014 Acta Materialia Inc. Published by Elsevier Ltd.
• Related URLs
• • https://spiral.imperial.ac.uk/bitstream/...(Other)
• Depositing User
• Rongshan Qin