Effect of exposure time on corrosion behavior of zinc-alloy in simulated body fluid solution: Electrochemical and surface investigation

Zn alloy biocompatible implant materials have wide clinical application but its susceptibility to corrosion in the physiological environment due increased exposure time is a major constraint. Consequently, diverse electrochemical responses been investigated understand mechanism at interface different immersion times up 168 h. A self-protective layer of Zn(OH)2 was evidenced over surface higher simulated body fluid (SBF) solution. The morphology and chemical composition zinc has studied by Field emission scanning electron microscopy (FESEM), X-RAY diffraction (XRD), annulated transmission refraction (ATR), Photoelectron Spectroscopy (XPS). results indicated that predominantly forms oxide or hydroxide phosphate compound as primary products which confirmed from elemental ratio (Zn/O, Zn/Cl Zn/P 1:1, 1:2, 2:3 respectively). Additionally, FESEM selective formation nano structured responsible for protectiveness specimen period. When immersed SBF solution, rate found be 0.156–0.0976 mmy−1, proves sustainability biomedical applications provides an improved degradation