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纳米Fe—10Cr涂层电化学腐蚀行为影响研究Ⅱ．点蚀性能
CORROSION BEHAVIOR OF Fe- 10Cr NANOCRYSTALLINE COATINGS Ⅱ. CORROSION BEHAVIOR OF Fe -10Cr NANOCRYSTALLINE COATINGS IN ACIDIC SOLUTION WITH Cl^-
查看参考文献11篇
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文摘
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利用动电位极化曲线、电化学阻抗谱图（EIS）和Mott-Schottky分析等电化学测试手段．探讨了Fe—10Cr纳米涂层在0.05mol／L H_2SO_4＋0.5mol／LNaCl溶液中的腐蚀行为．研究表明，与铸态合金相比，溅射纳米涂层表面钝化膜的化学稳定性和再钝化性能明显提高；二者的钝化膜均具有p型半导体结构特征．但溅射纳米涂层表面钝化膜的载流子密度和平带电位都比较低，导致钝化膜中金属离子的传输速度较低，纳米橡层表面钝化膜的化学稳定性增强。 |
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其他语种文摘
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The corrosion behavior of Fe - 10Cr sputtering coating with nanoscale grain size was investigated in 0.05 mol/L H_2SO_4 ＋0.5 mol/L NaCl aqueous solution using polarization curves, EIS and Mott -Schottky analysis. The results indicated that the chemical stability and repassive ability of passive film formed on Fe - 10Cr nc coating was apparently improved. The passive films on both Fe - 10Cr nc coating and cast alloy have p - type semiconducting behavior. The lower acceptor density and flat - band potential of the passive film in comparison with Fe - 10Cr cast alloy lead to the high chemical stability and repassive ability for the passive film on the sputtering coating. |
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来源
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中国腐蚀与防护学报
,2007,27(1):43-47 【核心库】
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关键词
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纳米晶
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晶粒尺寸
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腐蚀行为
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钝化
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钝化膜
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点蚀
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地址
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中国科学院金属研究所, 金属腐蚀防护国家重点实验室, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-4537 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:2743112
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