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http://dx.doi.org/10.9726/kspse.2014.18.2.037

Polarization Characteristics of Heat-treated Ni-based Self-flux Alloy Coating in Alkaline Solution  

Kim, Tea-Yong (Graduate School of Pukyong National University)
Kim, Jea-Dong (Institute of Marine Industry Gyeongsang National University)
Kim, Yeong-Sik (Department of Mechanical & Automotive Engineering, Pukyong National University)
Publication Information
Journal of Power System Engineering / v.18, no.2, 2014 , pp. 37-42 More about this Journal
Abstract
The purpose of this paper is to investigate polarization characteristics of heat-treated Ni-based self-flux alloy coating in alkaline solution. Ni-based self-flux alloy powder was sprayed to a steel substrate using flame spray process, and heat treatments were performed in a vacuum furnace at $800^{\circ}C$, $900^{\circ}C$, $1000^{\circ}C$ and $1100^{\circ}C$. After heat treatments, corrosion tests were carried out using potentiostat/galvanostat at solution with pH 8 and pH 13. Corrosion potential(Ecorr) and corrosion current density(Icorr) could be analyzed from polarization curve. Anticorrosive effect of heat-treated coating at solution with pH 8 was relatively greater than at solution with pH 13. Heat-treated coating at $1100^{\circ}C$ showed the greatest anti-corrosion characteristics in alkaline solution.
Keywords
Ni-based Self-flux Alloy Coating; Corrosion Potential; Anti-Corrosion; Polarization Curve; Corrosion Current Density;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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