Reflectance curves and CIE L* a* b* parameters to describe patina characteristics and corrosion mechanism on bronze alloys
Keywords:Color, lighting, visual perception, digital, design
Metals have had in the past and still have nowadays many applications. One of the oldest and most frequently used metals has been copper and one of its alloys: bronze, which is copper and tin alloy. Bronze is often used because of its good mechanical properties 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. Colorimetric measurements are useful because they are non-destructive and can be done using compact instruments, which are portable, implying that in-situ measurements can be done in a relatively rapid manner . [...]
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The "Cultura e Scienza del Colore - Color Culture and Science" journal is registered at the Court of Milan at n.233 of 24.06.2014.
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