Effect of plasma nitriding and titanium nitride coating on the corrosion resistance of titanium
作者： Xianli Wang , Shizhu Bai , Fang Li , Dongmei Li , Jing Zhang
DOI: 10.1016/J.PROSDENT.2016.01.016
关键词: Materials science 、 Nitriding 、 Fluoride 、 Metallurgy 、 Corrosion 、 Titanium nitride 、 Tin 、 Scanning electron microscope 、 Coating 、 Titanium
摘要: Abstract Statement of problem The passive film on the surface titanium can be destroyed by immersion in a fluoridated acidic medium. Coating with nitride (TiN) may improve corrosion resistance titanium. Purpose purpose this in vitro study was to investigate effect duplex treatment plasma nitriding and TiN coating cast Material methods Cast treated coating. duplex-treated fluoride-containing artificial saliva then investigated through electrochemical tests. corroded characterized scanning electron microscopy (SEM) energy-dispersive spectroscopy scan analysis. data were analyzed using ANOVA (α=.05) Results Duplex generated dense uniform thickness 4.5 μm. Compared untreated titanium, displayed higher potential (E corr ) values ( P .001) lower current density (I .001). SEM results showed that more heavily than Surface analysis had been immersed containing 2 g/L fluoride revealed fluorine surface, whereas not observed after saliva. concentration ions released from less amount Conclusions significantly improved environment.
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