| Ni-SiO2复合镀层电沉积制备及组织性能研究 |
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| 引用本文： | 李云龙,韩世超,焦玉龙,肖绮,蔡彤彤,张雪辉. Ni-SiO2复合镀层电沉积制备及组织性能研究[J]. 有色金属科学与工程, 2022, 13(2): 31-37. DOI: 10.13264/j.cnki.ysjskx.2022.02.005 |
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| 作者姓名： | 李云龙 韩世超 焦玉龙 肖绮 蔡彤彤 张雪辉 |
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| 作者单位： | 1.中国核电工程有限公司郑州分公司，郑州 450052 |
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| 基金项目： | 国家自然科学基金;江西省自然科学基金资助项目 |
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| 摘 要： | 利用直流电沉积方法在Zr-4合金表面制备了Ni-SiO2复合镀层，采用场发射扫描电镜、显微硬度计、电化学工作站、摩擦磨损试验机等研究复合镀层的表面形貌、显微硬度、耐腐蚀性及摩擦磨损性能。研究结果表明:与单一的Ni镀层相比较，Ni-SiO2复合镀层的显微硬度值有所提升，表面更为均匀，Ni-SiO2复合镀层的耐腐蚀性能和耐磨性能也得到明显提升。且当SiO2颗粒添加量为10 g/L时，复合镀层的综合性能较优。
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| 关 键 词： | 直流电沉积 复合镀层 硬度 腐蚀行为 耐磨性 |
| 收稿时间： | 2021-06-17 |
Study on the preparation and microstructure properties of Ni-SiO2 composite coatings by electrodeposition |
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| Affiliation: | 1.Zhengzhou Branch, China Nuclear Power Engineering Co., Ltd., Zhengzhou 450052, China2.Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China |
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| Abstract: | A Ni-SiO2 composite coating was prepared on the surface of a Zr-4 alloy by a direct current electrodeposition method. The surface morphology, microhardness, corrosion behavior and wear resistance of the Ni-SiO2 composite coating were studied by field emission scanning electron microscopy, microhardness testing, electrochemical testing and friction wear testing. The results showed that the microhardness of the Ni-SiO2 composite coating was improved compared with that of the Ni coating, and its surface was more uniform and compact. The corrosion and wear resistance of the Ni-SiO2 composite coating were also significantly improved. In addition, when the additional amount of SiO2 powder was 10 g/L, the comprehensive performance of the composite coating was best. |
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