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纳米镀锌层在NaCl溶液中的腐蚀行为研究
引用本文:刘小虹,颜肖慈,李学丰,李伟,罗明道. 纳米镀锌层在NaCl溶液中的腐蚀行为研究[J]. 材料保护, 2003, 36(1): 11-13
作者姓名:刘小虹  颜肖慈  李学丰  李伟  罗明道
作者单位:武汉大学化学与分子科学学院,湖北,武汉,430072;金属腐蚀与防护国家重点实验室,辽宁,沈阳,110016
摘    要:通过电镀的方法制备了不同晶粒尺寸的纳米镀锌层和微米镀锌层,应用极化曲线和交流阻抗的方法研究了它们在5%NaCl溶液中的电化学腐蚀行为,结果表明,纳米镀锌层较微米镀锌层腐蚀电流密度增加,纳米镀锌层的电化学腐蚀行为存在纳米尺寸纳应,镀锌层纳米化使参与反应的原子数增加,阳极交换电流密度提高,氧的阴极还原更为容易,阴极交换电流密度也提高。

关 键 词:纳米镀锌层 NaCl溶液 腐蚀行为 研究 氯化钠 纳米晶
文章编号:1001-1560(2003)0011-03

Corrosion Behavior of Nanocrystalline Zinc Plate in NaCl Solution
LIU Xiao-hong,YAN Xiao-ci,LI Xue-feng et al. Corrosion Behavior of Nanocrystalline Zinc Plate in NaCl Solution[J]. Journal of Materials Protection, 2003, 36(1): 11-13
Authors:LIU Xiao-hong  YAN Xiao-ci  LI Xue-feng et al
Abstract:Different crystalline-sized nanometer and micrometer zinc plates were prepared by electroplating. Their electrochemical corrosion behaviors in 5 % NaCI solution were investigated by potentiodynamic polarization and EIS techniques. The results showed that the corrosion current density of nanometer zinc plate was increased and there existed nanometer - sized effect. The rise of anodic exchange current density was attributed to the more active zinc atoms on the grain boundary and the rise of cathodic exchange current density was due to the easiness of cathodic deoxidization of oxygen.
Keywords:nanocrystalline  zinc plate  corrosion behavior
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