研究了氢对钝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.
Annealed pure 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,in Na2B4O7 solution.After charged with hydrogen and then passisived film in NaCl solution decreased with the increase in hydrogen content.
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| [3] | |
| [4] | |
| [5] |
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