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Effect of surface passivation on corrosion resistance and antibacterial properties of Cu-bearing 316L stainless steel

Jinlong Zhao - No affiliation found

2016/11/15 Full-length article DOI: 10.1016/j.apsusc.2016.06.036 Journal: Applied Surface Science

Abstract:

Highlights•A new passivation solution that adding proper concentration of Cu2+ ions into nitric acid solution was proposed.•The new passivation method can simultaneously guarantee the better corrosion resistance and stable antibacterial property for 316L-CuSS.•The results of XPS analysis and Cu2+ ions release explained the antibacterial mechanism.•The 316L-CuSS after antibacterial passivation determined by RTCA assay was completely biocompatible.