复合电沉积制备Ni-Fe/TiO_2镀层及其耐蚀性
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摘要
通过复合电沉积法制备了Ni-Fe/TiO_2镀层,采用扫描电镜、能谱仪、Tafel曲线、电化学阻抗谱等方法对Ni-Fe/TiO_2复合镀层的表面形貌、成分和耐蚀性进行了研究。结果表明:随着镀液中TiO_2微粒添加量的增加,镀层表面裂纹减少,TiO_2微粒在镀层表面分布更为均匀;镀层中TiO_2的含量增加,Fe的含量降低,Ni的含量增加;镀层的耐蚀性增强。
Ni-Fe/TiO_2 coatings were prepared by means of composite electrodeposition. Surface morphology,composition and corrosion resistance of Ni-Fe/TiO_2 composite coatings were studied by means of scanning electron microscopy,energy analysis,Tafel curve analysis,electrochemical impedance spectroscopy techniques. The results show that with the increase of amount of TiO_2 particle in bath,the surface cracks decrease,the uniformity of the distribution of TiO_2 particle on the coating surface enhances,the content of TiO_2 particle in coating increases,the content of Fe decreases while Ni increases and corrosion resistance of coating enhances.
Ni-Fe/TiO_2 coatings were prepared by means of composite electrodeposition. Surface morphology,composition and corrosion resistance of Ni-Fe/TiO_2 composite coatings were studied by means of scanning electron microscopy,energy analysis,Tafel curve analysis,electrochemical impedance spectroscopy techniques. The results show that with the increase of amount of TiO_2 particle in bath,the surface cracks decrease,the uniformity of the distribution of TiO_2 particle on the coating surface enhances,the content of TiO_2 particle in coating increases,the content of Fe decreases while Ni increases and corrosion resistance of coating enhances.
引文
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[3]徐婷,焦玉民,刘斌,等.电沉积镍基复合镀层的研究现状[J].机械工程与自动化,2018(1):219-221.Xu Ting, Jiao Yumin, Liu Bin, et al. Research overview on electrodeposited nickel-base composite coatings[J]. Mechanical Engineering and Automation,2018(1):219-221.
[4]Baghery P,Farzam M,Mousavi A B,et al. Ni-TiO2nanocomposite coating with high resistance to corrosion and wear[J]. Surface and Coating Technology,2010,204:3804-3810.
[5]Zhang Shiyan,Li Qing,Yang Xiaokui,et al. Corrosion resiatance of AZ91D magnesium alloy with electroless plating pretreatment and NiTi O2composite coating[J]. Materials Characterization,2010,61(3):269-276.
[6]Llavona Angela,Perez Lucas,Sanchez Carmen M,et al. Enhancement of anomalous codeposition in the synthesis of Fe-Ni alloys in nanopores[J]. Electrochimica Acta,2013,106:392-397.
[7]邹勇进,肖作安,费锡明,等. Ni-W-TiO2复合镀工艺及其镀层性能研究[J].材料保护,2004,37(12):24-26.Zou Yongjin,Xiao Zuoan,Fei Ximing,et al. Preparation technology and properties of nickel-tungsten titanium dioxide composite plating[J]. Materials Protection,2004,37(12):24-26.
[8]Li Danlei,Lin Chuhong,Christopher Batchelor-McAuley,et al. Tafel analysis in practice[J]. Journal of Electroanalytical Chemistry,2018,826:117-124.
[9]赵亚楠,朱晓宇,刘瑕,等.固溶处理对304不锈钢晶界特征及腐蚀性能的影响[J].金属热处理,2018,43(11):150-154.Zhao Ya'nan,Zhu Xiaoyu,Liu Xia,et al. Effect of solid on grain boundary character distribution and corrosion resistance of 304 stainless steel[J]. Heat Treatment of Metals,2018,43(11):150-154.
[10]师红旗,丁毅,马立群.化学镀镍换热器管束腐蚀破裂失效分析[J].表面技术,2009,38(5):93-95.Shi Hongqi,Ding Yi,Ma Liqun. Failure analysis of corrosion cracking of heat exchanger tubes packing with electroless nickel[J]. Surface Technology,2009,38(5):93-95.
[11]Liu Yaxuan,Bian Da,Zhao Yongwu,et al. Anti-corrosion performance of chemically bonded phosphate ceramic coatings reinforced by nanoTi O2[J]. Journal of the Mechanical Behavior of Biomedical,2018,86:208-214.
[12]Li Chaoqun, Li Xinhai, Wang Zhixing, et al. Mechanism of nanocrystalline nickel electrodeposition from novel citrate bath[J].Rare Metal Materials and Engineering,2015,44(7):1561-1567.
[13]曹楚南,张鉴清.电化学阻抗谱导论[M].北京:科学出版社,2002.Cao Chu'nan,Zhang Jianqing. An Introduction to Electrochemical Impedance Spectroscopy[M]. Beijing:Science,2002.
[14]赵芳霞,罗驹华,张振忠,等. Ni-P-纳米Ti O2复合镀层的耐蚀性研究[J].特种铸造及有色合金,2005,25(5):262-264.Zhao Fangxia, Luo Juhua, Zhang Zhenzhong, et al. Corrosionresistance of Ni-P-nano Ti O2electrolyte compound plating[J]. Special Casting and Nonferrous Alloys,2005,25(5):262-264.