Colorimetric measures on bronze alloys exposed to urban and marine environment

Bronze is often used because of its good mechanical proprieties and for its colour range when corroded, which can give different aesthetic results to the artifacts. The colour of bronze depends on the concentration of the main components and any additional alloying elements. Not only gives the composition a specific colour to the alloy, it also influences the corrosion behaviour. This research focuses on the correlation between urban and marine environments and the corrosion behaviour of three bi-component copper-tin alloys used in different historical and artistic artifacts using colorimetry.