‘Artistic/intentional’ patina is a surface layer intentionally produced by an artist or a specialized professional on a metallic artwork with aesthetic or practical purposes. From the science of surfaces point of view the ‘artistic’ patina could be considered as an interface between the metallic substrate and the external environment and therefore affecting, depending on its physical and chemical peculiarities, the corrosion process. In order to understand how the ‘artistic’ patina behaves inside the exposure environment, an experimental activity was carried out: the study of the data collected with the application of different analytical techniques contributed to a more pertinent knowledge of the characteristics of metallic works of art which, in turn, leads to a restoration process respecting their real nature.
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