Keywords
Citation
(2013), "2012 Awards for Excellence", Anti-Corrosion Methods and Materials, Vol. 60 No. 1. https://doi.org/10.1108/acmm.2013.12860aaa.018
Publisher
:Emerald Group Publishing Limited
Copyright © 2013, Emerald Group Publishing Limited
2012 Awards for Excellence
Article Type: 2012 Awards for Excellence From: Anti-Corrosion Methods and Materials, Volume 60, Issue 1
The following article was selected for this year's Outstanding Paper Award for Anti-Corrosion Methods and Materials
“Effect of cyclic hydrostatic pressure on the sacrificial anode cathodic protection”
Shengnan Hu, Tao Zhang and Yawei ShaoCorrosion and Protection Laboratory, Key Laboratory of Superlight Materials and Surface Technology, Harbin Engineering University, Ministry of Education, Harbin, China
Guozhe Meng and Fuhui WangaState Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
Purpose – The purpose of this paper is to study the effect of cyclic hydrostatic pressure on the protective performance of cathodic protection (CP) system consisting of Zn-Bi sacrificial anode and Ni-Cr-Mo-V steel.
Design/methodology/approach – The anode and cathode polarization curves of the driving potential and current for CP were investigated in case of cyclic hydrostatic pressure (0-3.5 MPa) and compared with that at atmospheric pressure. The morphologies of the anode material with and without corrosion products were observed by scanning electron microscopy.
Findings – The experimental results revealed that the cyclic hydrostatic pressure had significant influence on the CP system. The anode potential instantaneously responded to the cyclic hydrostatic pressure and the discharge performance decreased due to the deposition of corrosion product. Also, the CP system exhibited higher slope parameter under cyclic hydrostatic pressure, indicating that the CP system cannot provide adequate protection for Ni-Cr-Mo-V steel.
Originality/value – The results presented in this paper clearly show the effect of cyclic hydrostatic pressure on the sacrificial anode CP system, and present a foundation for further research on the practical application of sacrificial anode under cyclic hydrostatic pressure environment.
Keywords Cathodic protection, Zn-Bi sacrificial anode, Cyclic hydrostatic pressure, Circuit current, Slope parameter, Hydrostatics
www.emeraldinsight.com/10.1108/00035591111167703
This article originally appeared in Volume 58 Number 5, 2011, pp. 238-44 Anti-Corrosion Methods and Materials
The following article was selected for this year's Highly Commended Award
“A phenomenological model for the chloride threshold of pitting corrosion of steel in simulated concrete pore solutions”
Xianming Shi, Tuan Anh Nguyen, Prathish Kumar and Yajun Liu
This article originally appeared in Volume 58 Number 4, 2011 Anti-Corrosion Methods and Materials