The investigation on properties of Ti- 5Si and Ti- 5Nb implant alloys coated by bioactive based composite coating

Abstract

Abstract Ti alloys are extensively used in orthopaedic applications due to their good mechanical and biocompatibility properties. It is required to improve their overall properties, corrosion resistance, and ion release. To mix Si and Nb alloying components with CP-Ti, powder metallurgy was used. Multiple torch fires were used to coat Ti- 5Nb and Ti- 5Si alloys with two distinct types of Nanocoatings HAP+25%SiC (type-A), and Zeolite+25%ZrO2 (type-B). The Nb and Si were introduced as alloying elements of 5%Wt. in two samples. Different characterisation techniques, including (FESEM) and (EDS), XRD, AFM, Hardness, Ultimate tensile strength, corrosion resistance, and AAS, are used. Coatings (types A and B) improved the hardness and ultimate strength of Ti alloys, particularly Ti- 5Si coated by HAP+25%SiC, according to the findings. Because a permanent oxide layer (TiO2 and SiO2) is generated when Ti alloys, particularly Ti- 5Si, are coated with Zeolite ZSM5+25%ZrO2, they corrode at a lesser rate than other samples. Ti- 5Nb has a significant ion release, whereas Ti-5Si coated zeolite+25%ZrO2 has a comparatively modest Ti ion release.