Plasma Electrolytic Oxidation (PEO) Coating on γ-TiAl Alloy: Investigation of Bioactivity and Corrosion Behavior in Simulated Body Fluid

The effect of applied voltage (400, 450, and 500 V) on the microstructure, bioactivity, corrosion rate plasma electrolytic oxidation (PEO) coatings γ-TiAl alloy was investigated. microstructure chemical composition achieved were studied, along with their bioactivity behaviors in simulated body fluid (SBF). results demonstrated that higher coating′s surface pore, greater number suitable sites for formation hydroxyapatite a spherical structure. utilizing 400, V displayed 59.4, 96.6, 145 Ω.cm2 as inner layer electrical resistances, respectively. findings biological examination revealed Mesenchymal stem cells (MSCs) more cytocompatibility had capacity cell attachment PEO-coated sample than γ-TiAl, result better initial made possible by topography PEO coatings. latter has significant potential to be employed orthopedic applications.