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Electrochemical Corrosion Behavior of Dental/Implant Alloys in Artificial Saliva

机译:牙科/植入合金在人工唾液中的电化学腐蚀行为

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摘要

The corrosion behavior and passive film characteristics of various dental alloys such as Co-Cr, Ni-Cr, Cu-Ni-Al, and commercially pure Ti (c.p. Ti) were evaluated in artificial saliva medium by utilizing electrochemical impedance spectroscopy (EIS), Tafel polarization, and cyclic polarization studies. EIS studies were carried out for various durations viz. 1 h, 1 day, and 7 days to evaluate the stability of passive film and change in corrosion characteristics with respect to time. Electrochemical parameters such as E{sub}(corr), i{sub}(corr), corrosion rate, passive film characteristics with respect to time were obtained from various studies mentioned above. The corrosion resistance decreased in the order Cu-Ni-Al>cp Ti> Co-Cr (Commercial) > Ni-Cr > Co-Cr (DRDO developed) in artificial saliva solution.
机译:利用电化学阻抗谱(EIS)在人工唾液介质中评估了各种牙科合金(例如Co-Cr,Ni-Cr,Cu-Ni-Al和商业纯钛(cp Ti))的腐蚀行为和钝化膜特性, Tafel极化和循环极化研究。 EIS研究进行了不同的时间,即。 1小时,1天和7天,以评估钝化膜的稳定性以及腐蚀特性随时间的变化。通过上述各种研究获得了电化学参数,例如E {sub}(corr),i {sub}(corr),腐蚀速率,相对于时间的钝化膜特性。在人工唾液中,耐腐蚀性按Cu-Ni-Al> cp Ti> Co-Cr(商业)> Ni-Cr> Co-Cr(开发的DRDO)的顺序降低。

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