Decorative Anodising of Titanium Surface

Abstract

Increased interest in the titanium jewellery industry for the products made of titanium with the use of decorative colour coatings, has been noted in the article. The results of experimental studies of decorative col-our conversion coatings on the surface of titanium alloys BT1-0, OT4, BT20 in different electrolytes are given. The influence of surface roughness on the colour of the formed coatings has been investigated. The influence of the alloy composition, electrolyte composition, electrolysis modes and surface roughness on the colour of the formed coatings has been shown. The phenomenon of colour zoning of the coatings at some electrolysis modes has been noted. Technological recommendations for obtaining decorative coatings on the surface of a number of titanium alloys in the required colour under production conditions have been developed.