摘要
以Q345B钢作为基底材料通过直接电沉积的方式制得Ni60A-YSZ-Al2O3组成的纳米复合涂层,对涂层进行组织结构与各元素组成情况的测试,并表征了涂层润湿性。研究结果表明:在Ni60A-YSZ涂层的表面区域并没有产生气孔与裂纹;在Ni60A-Al2O3涂层的表面区域形成了明显的包状组织,并且尺寸与分布性也更均匀。加入3 g/LYSZ以及3 g/LAl2O3颗粒时形成的涂层内形成了部分孔隙结构,引起了致密度的减小,此时的涂层厚度为19.17μm,增大近6%。在Ni60A-YSZ-Al2O3复合涂层中的Ni-Co合金具有面心立方结构。Ni与Co两种金属原子能够以具有相同结构的α相固溶体组织存在。在YSZ与Al2O3颗粒的质量浓度都在3 g/L的条件下可以获得最低的粗糙度,此时也获得了133°的最大接触角。
The Q345 B steel,a widely used pipeline material in petroleum/chemical/auto industries,was surface-modified with electrodeposited Ni60 A-YSZ-Al2O3 coatings.The influence of the co-addition of yttria-stabilized ZrO2(YSZ) and Al2O3 nanoparticles,on the microstructures and wettability of the coatings was investigated with X-ray diffraction,scanning electron microscopy and energy dispersive spectroscopy.The results show that co-addition of YSZ and Al2O3 nanoparticles has a major impact.To be specific,in the Ni60 A-solution co-added with 3 g/L of YSZ and Al2O3 nanoparticles,the porous,less compact Ni60 A-YSZ-Al2O3 coatings grew to a thickness of 19.17 μm(an increase by 6%);and it had the lowest roughness and highest contact angle of 133°.The fcc-structured Ni-Co alloy exist,both Ni and Co clusters formed α-phased solid solution.We suggest that co-addition of YSZ and Al2O3 nanoparticles be of some technological interest in modification of Q345 B steel.
作者
骞大闯
李明刚
安晓东
Qian Dachuang;Li Minggang;An Xiaodong(Henan Vocational College of Mechanical and Electrical Engineering,School of New Energy Vehicles,Zhengzhou 451191,China;Henan Vocational College of Mechanical and Electrical Engineering,College of Automotive Engineering,Zhengzhou 451191,China;Zhengzhou Institute of Aviation Industry Management,Department of Vehicle Engineering,Zhengzhou 451191,China)
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2020年第8期729-733,共5页
Chinese Journal of Vacuum Science and Technology
基金
河南省高校重点项目计划(20A460024)。
