Titanium Alloys Anodic Oxidation: Effect of Experimental Parameters on Surface Colouring

Abstract:

The present study is focused on analysing the change of colours of anodized titanium and effects of applied electrolytic voltages on chromatics. The titanium specimens were anodized in 20 g/L citric acid and 20 g/L baking soda electrolyte by use of different voltages. The colours of anodized titanium were measured with a spectrophotometer and then evaluated in the CIELAB colour space. It is found that different volt produces different colours. Anodizing in the range of 15 V to 150 V produces respectively a wide spectrum of colour ranging from brown to fuchsia. It can be concluded that the colours of the anodized titanium are dependent upon the applied voltages.

• Periodical: Materials Science Forum (Volume 941)
• Pages: 730-734
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.941.730
• Online since: December 2018
• Authors: Giuseppe Napoli*, Chiara Zitelli, Domenico Corapi, Andrea Di Schino
• Keywords: Anodization, Colour, Oxide, Titanium Alloy

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