Corrosion-resistance of Ni-P-nano TiO<sub>2</sub> Electrolyte Compound Plating

Zhao Fangxia  Luo Juhua  Zhang Zhenzhong  Chen Chuanwen

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Corrosion-resistance of Ni-P-nano TiO₂ Electrolyte Compound Plating
Issue 5, Pages: 262-264(2005)
Published： 2005 ，
DOI：

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[1]赵芳霞,罗驹华,张振忠,陈传文.Ni-P-纳米TiO_2复合镀层的耐蚀性研究[J].特种铸造及有色合金,2005(05):262-264+253.

Zhao Fangxia Luo Juhua Zhang Zhenzhong Chen Chuanwen. Corrosion-resistance of Ni-P-nano TiO₂ Electrolyte Compound Plating. [J]. Special Casting & Nonferrous Alloys (5):262-264(2005)
[1]赵芳霞,罗驹华,张振忠,陈传文.Ni-P-纳米TiO_2复合镀层的耐蚀性研究[J].特种铸造及有色合金,2005(05):262-264+253. DOI：

Zhao Fangxia Luo Juhua Zhang Zhenzhong Chen Chuanwen. Corrosion-resistance of Ni-P-nano TiO₂ Electrolyte Compound Plating. [J]. Special Casting & Nonferrous Alloys (5):262-264(2005) DOI：

摘要

采用全浸泡腐蚀试验

系统研究了Ni P 纳米TiO2 复合镀层在HCl、H2 SO4、HNO3、NaOH和NaCl溶液中的耐腐蚀性能。结果表明

Ni P 纳米TiO2 复合镀层比Ni P化学镀层具有更优异的耐酸、耐碱、耐盐腐蚀的性能;复合镀层在盐和碱性腐蚀液中的耐蚀性优于酸性腐蚀液;Ni P 纳米TiO2 复合镀层在不同腐蚀液中的腐蚀形态明显不同

复合镀层在NaOH、NaCl和HCl溶液中的腐蚀形态为均匀腐蚀型

而在H2 SO4和HNO3强氧化性介质中的腐蚀形态则为点蚀穿透型;保持镀层在腐蚀液中的完整性对提高镀层的耐腐蚀性能至关重要。

Abstract

The corrosion resistance of the Ni-P-nano TiO

electrolyte compound plating immersed in the different solutions including HCl

HNO

NaOH and NaCl was systematically exaimined by the full-soak corrosion testing.Results indicated that the Ni-P-nano TiO

compound plating possesses the higher corrosion resistance to acid

alkali and salt comparing with the Ni-P electrolyte plating.The corrosion resistance of the compound plating in salt and alkali solutions is superior to that in acid solution.The corrosion morphology of the compound plating belongs to uniformly corrosion shape in NaOH

NaCl and HCl solutions while belongs to pitting corrosion in H

HNO

solutions.It is significantly important for improving the corrosion resistance to keep the integrality of the Ni-P-nano TiO

electrolyte compound plating in the erosion solution.