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http://dx.doi.org/10.5695/JKISE.2020.53.5.207

Effect of ICCP Potential with Electrolyte on Corrosion and Discolor of Silver  

Shin, Byung-Hyun (Departments of Materials Science and Engineering, Pusan National University)
Kim, Do-Hyung (The Institute of Materials Technology, Departments of Materials Science and Engineering, Pusan National University)
Chung, Won-Sub (The Institute of Materials Technology, Departments of Materials Science and Engineering, Pusan National University)
Publication Information
Journal of the Korean institute of surface engineering / v.53, no.5, 2020 , pp. 207-212 More about this Journal
Abstract
Silver is an inexpensive precious metal and is used in various jewelry in Asia. Although silver has high potential, it has corrosion resistance that is vulnerable to boiling sulfuric acid and nitric acid. So, silver research is needed to prevent the corrosion with environment. But silver corrosion is not studied. sulfuric acid make the uniform corrosion and chloride ion make the pitting corrosion. ICCP inhibits the corrosion because it offset electrons. This study used a potential from - 4 V to 4 V to check the effect of potential. Corrosion rate is lowet at -1 V.
Keywords
Silver; ICCP; Electrochemical properties; Surface corrosion; Discolor;
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