Original scientific paper

Colouring titanium alloys by anodic oxidation

G. Napoli orcid.org/0000-0003-4215-1555 ; Università di Perugia, Dipartimento di Ingegneria, Perugia, Italy
M. Paura ; Seamthesis, Nera Montoro (Terni), Italy
T. Vela ; Seamthesis, Nera Montoro (Terni), Italy
A. Di Schino orcid.org/0000-0002-5222-903X ; Università di Perugia, Dipartimento di Ingegneria, Perugia, Italy

Abstract

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

Keywords

titanium alloys; anodization; color; oxide; solution

Hrčak ID:

189377

URI

https://hrcak.srce.hr/189377

Publication date:

1.1.2018.

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