氮化钛镀膜对纯钛在氟环境中耐腐蚀性能影响的研究  

The effect of TiN-coated on the corrosion resistance of casted titanium in fluoride environment

作　　者：王献利 白石柱[1] 郭天文[1] 梁海锋[3] 弥谦[3] 

机构地区：[1]第四军医大学口腔医院修复科,硕士陕西710032 [2]河南省安阳市口腔医院修复科,主治医师河南455000 [3]西安工业大学陕西省薄膜技术与光学检测重点实验室,副教授陕西710032

出　　处：《中华老年口腔医学杂志》2013年第6期321-324,共4页Chinese Journal of Geriatric Dentistry

基　　金：国家自然科学基金(编号:30171022)

摘　　要：目的:观察纯钛铸件表面镀制氮化钛薄膜后在氟环境中的耐腐蚀性。方法:用动电位极化技术测试对照组和镀膜组纯钛铸件在氟质量浓度为2000mg/L的人工唾液中的自腐蚀电流密度和自腐蚀电位,扫描电镜观察试件表面形貌,对结果进行分析比较。结果:对照组和镀膜组纯钛铸件的自腐蚀电流密度分别为4.13±0.19和0.66±0.03uA,自腐蚀电位分别为-0.57±0.05和-0.50±0.03V。镀膜后纯钛铸件的自腐蚀电流密度明显减小(P<0.05),自腐蚀电位明显增大(P<0.05)。扫描电镜显示,镀膜后纯钛铸件较对照组纯钛铸件的表面腐蚀形貌明显减轻。结论:镀膜后纯钛铸件的耐腐蚀性增强。Objective：To study the effect of TiN film by pulsed bias arc ion plating technique on the corrosion resistance of casted titanium in fluoride environment. Methods：Potentiodynamic polarization technique was used to measured the currentdensity of corrosion （Icorr）and the electric potential of corrosion （Ecorr）of untreated and TiN-coated casted titanium in the artificial saliva with 2000mg/L fluoride concentration.After electrochemical experiment, the microstructure was observed by scanning electron microscope （SEM ）. Results：The Icorrs of untreated and TiN-coated titanium were 4.13±0.19 and 0.66±0.03μA respectively.The Ecorrs were-0.57±0.05 and-0.50±0.03V respectively.The Icorrs of TiN-coated titanium were significantly low er than untreated titanium and the E corrs of TiN-coated titanium were significantly higher than untreated titanium . The surface of untreated titanium was corroded m ore heavily than TiN-coated titanium . Conclusion：The corrosion resistance of titanium were increased significantly after pulsed bias arc ion plated TiN-coated .

关 键 词：钛 氟 腐蚀 极化曲线 脉冲电弧离子镀 

分 类 号：R783.1[医药卫生—口腔医学]