A Study on the Applicability of Corrosion Inhibitor for Outdoor Copper Alloy
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초록
Outdoor copper alloy is exposed to the atmospheric environment, accelerating corrosion progress comparedwith indoor copper alloy. In order to prevent corrosion, the outdoor copper alloy is coated with wax to block externalcorrosion factors. However, corrosion of the inside of the coating film is highly likely to continue without the internalcorrosion prevention treatment. B.T.A, which is used as a copper alloy water-soluble corrosion inhibitor, has a highpossibility of being harmful to the human body and is mainly used to treat excavated artifacts. This study had selectedthe water-soluble corrosion inhibitor, which was easier to use than the existing wax and B.T.A being used in corrosioninhibition treatment for outdoor copper alloy. A comparative study was conducted on B.T.A, which is a water-solublecorrosion inhibitor used on excavated artifacts, and VCIⓇ, RusⓇ, and L-cys, an amino acid corrosion inhibitor, used fortin bronze test pieces. The experimental method was conducted for a certain period of time with the salt, acid, and airpollution affecting the corrosion of outdoor copper alloy. Based on experiment results, it was concluded that the best water- soluble copper alloy corrosion inhibitor in the atmospheric environment is VCIⓇ. and it could be considered to be appliedin replacement of B.T.A due to its low harmfulness. In addition, VCIⓇ is judged to serve as a corrosion inhibitor for outdoorcopper alloy because it showed the best result even in the outdoor exposure test which is a real atmospheric environment.
Abstract
Outdoor copper alloy is exposed to the atmospheric environment, accelerating corrosion progress comparedwith indoor copper alloy. In order to prevent corrosion, the outdoor copper alloy is coated with wax to block externalcorrosion factors. However, corrosion of the inside of the coating film is highly likely to continue without the internalcorrosion prevention treatment. B.T.A, which is used as a copper alloy water-soluble corrosion inhibitor, has a highpossibility of being harmful to the human body and is mainly used to treat excavated artifacts. This study had selectedthe water-soluble corrosion inhibitor, which was easier to use than the existing wax and B.T.A being used in corrosioninhibition treatment for outdoor copper alloy. A comparative study was conducted on B.T.A, which is a water-solublecorrosion inhibitor used on excavated artifacts, and VCIⓇ, RusⓇ, and L-cys, an amino acid corrosion inhibitor, used fortin bronze test pieces. The experimental method was conducted for a certain period of time with the salt, acid, and airpollution affecting the corrosion of outdoor copper alloy. Based on experiment results, it was concluded that the best water- soluble copper alloy corrosion inhibitor in the atmospheric environment is VCIⓇ. and it could be considered to be appliedin replacement of B.T.A due to its low harmfulness. In addition, VCIⓇ is judged to serve as a corrosion inhibitor for outdoorcopper alloy because it showed the best result even in the outdoor exposure test which is a real atmospheric environment.
참고문헌 (7)
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