Electrochemical impendence analysis of biomedical grade AISI316L in 3.5 wt. % NaCl solution

Effect of varying applied load on tribocorrosion behavior of biomedical grade AISI316L alloy in 3.5 wt. % NaCl solution is studied. AISI 316L alloy is cheaper material as compared with titanium and its alloys therefore it is generally used for biomedical applications. When such material comes in contact with corrosive environments like simulated body fluids and tissues, synergetic effect of wear and corrosion occurs. Parameters like load, pH, conductivity of simulated body fluids have influence on life cycle of Body implant materials. In this Study Load and walking speed(2.06 m/s and 2.9 m/s) of implanted patient is considered for experimentation work. In this research work 10N, 20N, 30N load is applied at 400 rpm and 480 rpm, respectively during tribocorrosion experiments. In this work, AISI316L investigates bio-tribocorrosion behaviors in Sodium Chloride solution and uses EIS analysis to investigate the corrosion resistance of material concerning load. The EIS is a technique for characterizing stainless steel corrosion behavior. EIS Analysis shows that with increasing load corrosion rate increases, and the Impendence resistance of the material is reduced. SEM images of various samples show varying load wear tracks and grooves observed.