Open AccessTHE INFLUENCE OF TITANIUM-NIOBIUM ALLOYS ON THE GROWTH OF THE OXIDE LAYER
Author(s) -
Jan Krčil,
Vladimír Mára,
Jana Sobotová,
Stanislav Krum
Publication year - 2017
Publication title -
acta polytechnica ctu proceedings
Language(s) - English
Resource type - Journals
ISSN - 2336-5382
DOI - 10.14311/app.2017.8.0008
Subject(s) - oxide , passivation , materials science , corrosion , layer (electronics) , titanium , metallurgy , niobium , alloy , titanium alloy , coating , thermal oxidation , titanium oxide , chemical engineering , composite material , engineering
This paper discusses issues of growth of a thin oxide layer formed on the surface of titanium alloys. The oxide layer on the surface introduces a corrosion resistance and a bio-compatibility, both of which are required for medical applications. The oxide layer is a result of a spontaneous passivation, but for the practical applications it is necessary to control the growth of oxides. In present work, the oxide layer was formed on the CP Ti grade 2, Ti39Nb alloy and CP Ti grade 2 with Ti39Nb PVD coating of two different thicknesses by a thermal oxidation at 600 °C for 8 hours. After the oxidation process the oxide layer was observed by SEM.