Corrosion behavior of brass from the Western Zhou Dynasty in an archeological-corrosive medium

摘要

The electrolytic-accelerated corrosion behavior of brass alloys imitating the Western Zhou Dynasty in an archeological-corrosive medium were investigated by electrochemical measurements and microscopy observations. The results indicated that the increase of copper content improved the corrosion resistance of the alloys in the archeological-corrosive medium. The corrosion mechanism of brass alloys in this corrosive medium is controlled by a mixed corrosion with selective dissolution and dissolution-reduction. Chloride ions are bound to affect the dissolution behavior of the alloy. The corrosion products formed on the alloy surface is mainly composed of copper oxide and insoluble copper chloride. (C) 2021 Elsevier B.V. All rights reserved.