Altering the Microstructure of Pearlitic Steel Using Pulsed Electric Current

Elliott-Bowman, Bernadette; Cook, Alexander C.; Brown, Peter; Dye, David and Qin, Rongshan (2016). Altering the Microstructure of Pearlitic Steel Using Pulsed Electric Current. Advanced Materials Research, 1139 pp. 3–6.

DOI: https://doi.org/10.4028/www.scientific.net/AMR.1139.3

Abstract

Electropulsing treatment was applied to high carbon pearlitic steel to assess the effects of the treatment on microstructure and properties. Ferrite recrystallisation and cementite spheroidisation were induced in samples treated at pulse duration and frequency greater than 40μs and 50Hz, respectively. Ferrite grain size of electropulsed samples was refined compared to similarly annealed samples. The results are explained through a combination of heating and athermal dislocation and atomic mobility effects. With optimisation, electropulsing may offer an improved annealing processing method.

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About

• Item ORO ID
• 46931
• Item Type
• Journal Item
• ISSN
• 1662-8985
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  3D nanostructured high strength machinable steel plate – superpearlite	DSTLX1000064117	DSTL

• Keywords
• Electropulsing; Grain Refinement; Microstructure; Recrystallisation; Steel
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Depositing User
• Rongshan Qin