摘要
采用化学镀涂层工艺在TA2钛表面获得氧化石墨烯(Ni-P/GO)涂层,并应用扫描电子显微镜(SEM)、能谱(EDS)等分析涂层的表面形貌和成分,采用0.5 mol/L H2SO4和体积分数为2×10-6的HF溶液对涂层进行抗腐蚀性能验证,然后通过水滴角测试仪测试涂层表面的疏水性能。结果表明:Ni-P/GO涂层具有优异的抗腐蚀性能,可以屏蔽腐蚀液对Ti基体的腐蚀;同时,涂层的腐蚀电位由-0.45 V提高到-0.11V;腐蚀电流密度为13.8μA/cm2,且耐久性测试后涂层的润湿角为116.849°。
Ni-P/GO coating on the surface of TA2 titanium can be obtained by electroless plating,followed by an analysis of the surface morphology and composition of the coating by scanning electron microscopy(SEM)and energy dispersive spectroscopy(EDS),with the coating corrosion resistance to be verified by 0.5 mol/L H2SO4 and HF solution with a volume fraction of 2×10-6,and with the hydrophobicity of the coating to be tested by Droplet Angle tester system.The results show that Ni-P/GO coating is characterized with an excellent corrosion resistance ability,which helps to shield the corrosion of Ti matrix by corrosive solution;meanwhile,the corrosion potential of the coating increases from-0.45 V to-0.11 V,with the corrosion current density value being 13.8μA/cm2,and the wetting angle of the coating after durability test being 116.849°.
作者
高平平
戴勇
陈爽
彭小敏
孙小刚
吴安如
GAO Pingping;DAI Yong;CHEN Shuang;PENG Xiaomin;SUN Xiaogang;WUAnru(Key Laboratory for Vehicle and Transmission System of Hunan Province,Hunan Institute of Engineering,Xiangtan Hunan 411104,China;Broad Homes Industrial Co.,Ltd.,Changsha 410080,China)
出处
《湖南工业大学学报》
2020年第2期55-60,共6页
Journal of Hunan University of Technology
基金
国家自然科学基金资助项目(51671085,11572124)
湖南省教育厅基金资助项目(16C0899)。
关键词
TA2钛
电沉积
Ni-P/GO涂层
耐蚀性
疏水性
TA2 Titanium
electro-deposition
Ni-P/GO coating
corrosion resistance
hydrophobicity
