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Electropulsing-induced strengthening of steel at high temperature

Lu, W.J.; Zhang, X. F. and Qin, R. S. (2014). Electropulsing-induced strengthening of steel at high temperature. Philosophical Magazine Letters, 94(11) pp. 688–695.

DOI (Digital Object Identifier) Link: https://doi.org/10.1080/09500839.2014.961583
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Abstract

Electropulsing usually promotes a metastable phase to evolve towards its equilibrium state. This work reports an alternative case, where electropulsing promotes the decomposition of the stable δ-phase in duplex stainless steel at high temperature. This decomposition enables both the γ-phase and the σ-phase in the steel to survive and hence to strengthen it at high temperature. The hardness of the quenched sample with electropulsing treatment is 49.4% higher than that without electropulsing treatment. A fundamental understanding of the observation is developed.

Item Type: Journal Item
Copyright Holders: 2014 Taylor & Francis
ISSN: 1362-3036
Keywords: electropulsing; phase stability; electrical properties; non-thermal effects; decomposition; strengthening; stainless steels
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 41902
Depositing User: Xinfang Zhang
Date Deposited: 23 Jan 2015 11:27
Last Modified: 29 Nov 2016 10:40
URI: http://oro.open.ac.uk/id/eprint/41902
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