| 脉冲电沉积纳米晶Ni-Co合金镀层腐蚀特性研究 |
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| 引用本文： | 钟远辉,戴品强,许伟长,陈闪闪.脉冲电沉积纳米晶Ni-Co合金镀层腐蚀特性研究[J].稀有金属材料与工程,2009,38(6):1053-1057. |
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| 作者姓名： | 钟远辉 戴品强 许伟长 陈闪闪 |
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| 作者单位： | 福州大学,福建,福州,350108 |
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| 基金项目： | 福建省科技计划重点项目，福建省自然科学基金 |
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| 摘 要： | 采用X射线衍射(XRD)、扫描电镜(SEM)、能谱分析(EDS)等方法研究了脉冲电沉积法制各纳米晶Ni和纳米晶Ni-Co合金镀层的组织结构、表面形貌和成分.用浸泡法和电化学极化法研究了纳米晶Ni和不同Co含量的纳米晶Ni-C0合金镀层在3.5%NaCl(质量分数,下同)和5%HCl溶液中的腐蚀行为.结果表明:通过脉冲电沉积法制各的Ni和Ni-Co合金镀层具有典型的纳米晶结构; 随着含Co量的增加,镀层的晶粒尺寸减小,硬度增加;所制备的纳米晶Ni-Co合金镀层组织结构均匀致密,其在3.5%NaCl溶液和5%HCl溶液中的耐蚀性均优于纳米晶Ni镀层;纳米晶Ni-Co合金镀层在3.5%NaCl溶液的浸泡腐蚀中腐蚀极少,表现出优异的耐腐蚀性能,而在5%HCl溶液中的腐蚀形态则为均匀腐蚀.
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| 关 键 词： | 脉冲电沉积 纳米晶体 Ni-co合金镀层 腐蚀 |
| 收稿时间： | 2008/6/27 0:00:00 |
Corrosion Characteristic of Pulsed Electrodeposition Nanocrystalline Ni-Co Alloy Coating |
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| Zhong Yuanhui,Dai Pinqiang,Xu Weichang and Chen Shanshan.Corrosion Characteristic of Pulsed Electrodeposition Nanocrystalline Ni-Co Alloy Coating[J].Rare Metal Materials and Engineering,2009,38(6):1053-1057. |
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| Authors: | Zhong Yuanhui Dai Pinqiang Xu Weichang and Chen Shanshan |
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| Affiliation: | Fuzhou University;Fuzhou 350108;China |
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| Abstract: | The microstructures, the surface morphology and the composition of nanocrystalline Ni and nanocrystalline Ni-Co alloy prepared by pulse electrodeposition have been studied by XRD, SEM and EDS. The corrosion behaviors of nanocrystalline nickel and Ni-Co alloys in the solutions containing 305% (mass fraction) NaCl and 5% (mass fraction) were investigated by soak method and electrochemical polarization method respectively. The experimental results indicate that typical nanocrystalline nickel and Ni-Co alloy co... |
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| Keywords: | pulse electrodeposition nanocrystalline Ni-Co alloy coating corrosion |
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