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http://dx.doi.org/10.5695/JKISE.2007.40.1.044

A Study on Desalization and Corrosion Products Formed on Salinized Archaeological Iron Artifacts  

Min, Sim-Kun (School of Advanced Materials Engineering, Kookmin University)
Lee, Jae-Hyung (School of Advanced Materials Engineering, Kookmin University)
Lee, Jae-Bong (School of Advanced Materials Engineering, Kookmin University)
An, Byeong-Chan (Dept. of Cultural Assets, Gyeongju University)
Publication Information
Journal of the Korean institute of surface engineering / v.40, no.1, 2007 , pp. 44-56 More about this Journal
Abstract
Excavated archaeological iron artifacts are usually conducted the conservation treatment for removal of chloride ions in the corrosion products. However, some iron artifacts are corroded again even after the conservation treatment due to unremoved chloride ions. Therefore, it is important to prevent desalinized artifacts from the occurrence of corrosion after the treatment. In this paper, we investigated the characteristics of corrosion products on salinized iron artifacts and evaluated the variety of desalination methods such as autoclave, intensive washing and NaOH. It was also found that ${\beta}-FeOOH$ (Akaganeite) played an important role on the occurrence of corrosion and the treatment for removal of chloride ions. The extents of desalination were compared between the desalination methods. Results showed that the autoclave method represented the highest efficiency for desalination while the intensive washing method was the lowest.
Keywords
Archaeological cast iron; Conservation treatment; Akaganeite(${\beta}-FeOOH$); Desalination;
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