316L/HA Kompozitlerinin Farklı Fizyolojik Sıvılardaki Korozyon ve Biyoaktivite Davranışının Araştırılması


Canpolat Ö., Çanakçı A.

JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, vol.1, no.1, pp.1, 2024 (ESCI) identifier

Abstract

In this study, SS316L/HA composites were produced by powder metallurgy method for biomedical applications; density, microstructure, hardness, corrosion resistance and bioactivity properties were investigated. 3%, 5% and 7% by weight of hydroxyapatite (HA) were added to the 316L matrix. With the increase of HA ratio, density and hardness decreased, while porosity increased. In XRD analysis, in addition to 316L and HA peaks, CaCr2O4 phase peaks were also observed. Corrosion tests were carried out in Ringer and Hank's physiological fluids, and the corrosion rate of the sample with 5% reinforcement was the lowest among composites. Bioactivity tests were carried out in simulated body fluid (SBF) for 7 and 14 days, and at the end of both periods, apatite layer consisting of spherical crystallites was observed on the sample surfaces.