Ni-SiO_(2)复合镀层电沉积制备及组织性能研究  

Study on the preparation and microstructure properties of Ni-SiO_(2) composite coatings by electrodeposition

作　　者：李云龙 韩世超 焦玉龙 肖绮 蔡彤彤 张雪辉[2] LI Yunlong;HAN Shichao;JIAO Yulong;XIAO Qi;CAI Tongtong;ZHANG Xuehui(Zhengzhou Branch,China Nuclear Power Engineering Co.,Ltd.,Zhengzhou 450052,China;Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]中国核电工程有限公司郑州分公司,郑州450052 [2]江西理工大学材料冶金化学学部,江西赣州341000

出　　处：《有色金属科学与工程》2022年第2期31-37,共7页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(51804138);江西省自然科学基金资助项目(2019ACBL21013,2020BAB204002)。

摘　　要：利用直流电沉积方法在Zr-4合金表面制备了Ni-SiO_(2)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-SiO_(2)复合镀层的显微硬度值有所提升,表面更为均匀,Ni-SiO_(2)复合镀层的耐腐蚀性能和耐磨性能也得到明显提升。且当SiO_(2)颗粒添加量为10 g/L时,复合镀层的综合性能较优。A Ni-SiO_(2) 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-SiO_(2) 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-SiO_(2) 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-SiO_(2) composite coating were also significantly improved.In addition,when the additional amount of SiO_(2) powder was 10 g/L,the comprehensive performance of the composite coating was best.

关 键 词：直流电沉积 复合镀层 硬度 腐蚀行为 耐磨性 

分 类 号：TG146.4[一般工业技术—材料科学与工程]