|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Advanced Biomaterials
||Investigation on Passive Film Structure and Antibacterial Property of 316L Stainless Steel by Cu-added Nitric Acid Passivation Treatment
||Jin-Long Zhao, Da-Ke Xu, Xin-Rui Zhang, Chunguang Yang, Ke Yang
|On-Site Speaker (Planned)
Surface passivation using nitric acid solution is a traditional way to improve corrosion resistance of stainless steel. In this work, we added different concentration of Cu-bearing ion solution into nitric acid, and Cu deposition behavior was further investigated by adjusting different passivation parameters. Based on the point defect model, the nucleation mechanism of passive film, film thickness, the diffusivity and density of the defects within the passive film were characterized by using the current-time transient, EIS and Mott-Schottky analysis. XPS was employed to analyze the chemical composition and valance distribution of Cu-bearing passive film. Antibacterial performance testing was performed by live-dead cell staining method. The biocompatibility test was also used to evaluate the biosafety of passivated 316L stainless steels. This work would help in building the corresponding relation of passive film structure and antibacterial property as well as to clarify the antibacterial mechanism of Cu ion in stainless steel.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)