Author/Authors :
Kazek-K?sik، نويسنده , , Alicja and Dercz، نويسنده , , Grzegorz and Kalemba، نويسنده , , Izabela and Suchanek، نويسنده , , Katarzyna and Kukharenko، نويسنده , , Andrey I. and Korotin، نويسنده , , Danila M. and Michalska، نويسنده , , Joanna and Krz?ka?a، نويسنده , , Agnieszka and Piotrowski، نويسنده , , Jerzy and Kurmaev، نويسنده , , Ernst Z. and Cholakh، نويسنده , , Seif O. and Simka، نويسنده ,
Abstract :
This paper reports on the surface modification of a Ti–15Mo alloy by plasma electrolytic oxidation (PEO). This process was carried out in solutions of 0.1 M Ca(H2PO2)2 with various concentrations of tricalcium phosphate (Ca3(PO4)2), wollastonite (CaSiO3), or silica (SiO2) using voltages of up to 350 V. The surface microstructure (SEM, cross-section of coating), roughness and chemical composition (energy-dispersive X-ray spectroscopy, thin layer X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy) of the porous oxide layers were investigated. The concentration of powder added to the solution changed the chemical composition and morphology of PEO coatings on the Ti–15Mo alloy surface. Calcium and phosphorous compounds were detected in the coatings formed on the substrate by the PEO process at 300 V.
Keywords :
Vanadium-free titanium alloy , Plasma Electrolytic Oxidation , silica , wollastonite , TCP , Surface modification
