CAJ | 학술논문

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。
목적：관찰순태주건표면도제담화태박막후재불배경중적내부식성。방법：용동전위겁화기술측시대조조화도막조순태주건재불질량농도위2000mg/L적인공타액중적자부식전류밀도화자부식전위，소묘전경관찰시건표면형모，대결과진행분석비교。결과：대조조화도막조순태주건적자부식전류밀도분별위4.13±0.19화0.66±0.03uA，자부식전위분별위-0.57±0.05화-0.50±0.03V。도막후순태주건적자부식전류밀도명현감소(P<0.05)，자부식전위명현증대(P<0.05)。소묘전경현시，도막후순태주건교대조조순태주건적표면부식형모명현감경。결론：도막후순태주건적내부식성증강。
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 .