Issue 84, 2017, Issue in Progress
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RSC Advances

Discharge and corrosion behaviour of AP65 magnesium anode plates with different rolling reductions†

Naiguang Wang, ORCID logo a   Yangchang Mu,a   Qi Lib  and  Zhicong Shi*a  

* Corresponding authors

a School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
E-mail: zhicong@gdut.edu.cn
Fax: + 86 020 39322570
Tel: +86 18933958027

b School of Materials Science and Engineering, Central South University, Changsha 410083, China

Abstract

AP65 with strong discharge activity is an attractive magnesium anode used for high-power seawater activated batteries. Herein, we adopt multi-pass rolling to tailor the microstructure of AP65 and systematically study the effect of rolling reduction on its discharge and corrosion behaviour. The results indicate that 63% reduction uniformly refines the grains and favours the formation of nanometer sub-grains that distribute homogeneously in the magnesium matrix, hence promoting the active dissolution of the AP65 plate at 180 mA cm−2 and leading to its more negative discharge potential along with higher anodic efficiency compared with other samples. Furthermore, the microstructure features corresponding to different rolling reductions and their impacts on the electrochemical response of AP65 are also analyzed.

Graphical abstract: Discharge and corrosion behaviour of AP65 magnesium anode plates with different rolling reductions

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Article information

DOI
https://doi.org/10.1039/C7RA10652A
Article type
Paper
Submitted
26 Sep 2017
Accepted
13 Nov 2017
First published
20 Nov 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 53226-53235

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Discharge and corrosion behaviour of AP65 magnesium anode plates with different rolling reductions

N. Wang, Y. Mu, Q. Li and Z. Shi, RSC Adv., 2017, 7, 53226 DOI: 10.1039/C7RA10652A

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