| 氢对纯镍钝化膜的影响 |
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| 引用本文： | 曾一民,乔利杰,林昌健,许廷军,郭献忠,褚武扬. 氢对纯镍钝化膜的影响[J]. 中国腐蚀与防护学报, 1999, 19(6): 321-326 |
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| 作者姓名： | 曾一民 乔利杰 林昌健 许廷军 郭献忠 褚武扬 |
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| 作者单位： | 1. 北京科技大学材料物理系,北京,100083
2. 厦门大学材料科学系,厦门,361005 |
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| 基金项目： | 国家自然科学基金，厦门大学表面物理化学国家重点实验室开放课题资助 |
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| 摘 要： | 研究了氢对纯镍阳极极化和钝化膜形成及耐蚀性能的影响。结果表明：预充氢会降低纯镍的自腐蚀电位，使其出现明显的活化区和临界钝化电流，缩短钝化区域；提高钝化电流密度和延长钝化膜的形成时间。固溶氢降低钝化膜的稳定性，增大膜的自活化能力；并导致钝化膜出现明显的孔蚀，膜的孔蚀电位随固溶氢含量的增加而降低。
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| 关 键 词： | 氢 阳极极化 钝化膜 孔蚀 纯镍 |
EFFECT OF HYDROGEN ON PROPERTY OF PASSIVE FILM ON NICKEL |
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| ZENG Yi-min,QIAO Li-jie,LIN Chang-jian,XU Ting-jun,GUO Xian-zhong,CHU Wu-yang. EFFECT OF HYDROGEN ON PROPERTY OF PASSIVE FILM ON NICKEL[J]. Journal of Chinese Society For Corrosion and Protection, 1999, 19(6): 321-326 |
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| Authors: | ZENG Yi-min QIAO Li-jie LIN Chang-jian XU Ting-jun GUO Xian-zhong CHU Wu-yang |
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| Abstract: | Annealed pure nickel specimens were pre charged with hydrogen at virous current densities. Effect of hydrogen on anodic polarization and passivation process of nickel was investigated using electrochemical method and theoretical analysis. The results showed that precharged hydrogen shifted the self corrosion potential negative, diminisked passived potential region, increased the passive current, delayed the formation of passive film and reduced its stability in Na 2B 4O 7 solution. After charged with hydrogen and then passivated, the open circuit potentials of the film on nickel changed quickly, and the pitting potential of passived film in NaCl solution decreased with the increase in hydrogen content. |
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| Keywords: | Hydrogen Nickel Passived film Pitting |
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