Abstract

In this paper, the Eu-Co-Ni-B coating was successfully prepared on the surface of copper from anhydrous ethanol at low temperature (40 °C) by electroless plating. The surface morphology of the coating was observed using Scanning Electron Microscopy (SEM), the composition was analyzed by Energy Dispersive X-Ray Spectroscopy (EDX), while the structure was studied by the X-ray Diffraction (XRD). In order to investigate the effects of heat treatment on the Eu-Co-Ni-B coating, the coating was heat treated at 200 °C, 400 °C, 600 °C and 800 °C for 40 min. The results showed that the Eu-Co-Ni-B coating changed from amorphous to crystalline. Open circuit potential (OCP) measurements and potentiodynamic polarization (PDP) experiments were carried out in 3 wt. % NaCl and 1 M NaOH to determine the anticorrosion performance of the coating. The 400 °C annealed coating showed notable improvement in corrosion properties.

摘要

本文以无水乙醇为原料，在低温（40 ℃）下采用化学镀法在铜表面成功制备了Eu-Co-Ni-B镀层。使用扫描电子显微镜（SEM）观察涂层的表面形貌，通过能量色散X射线光谱（EDX）分析组成，而通过X射线衍射（XRD）研究结构。为了研究热处理对 Eu-Co-Ni-B 涂层的影响，涂层在 200°C、400°C、600°C 和 800°C 下热处理 40 分钟。结果表明，Eu-Co-Ni-B涂层由非晶态转变为晶态。开路电位 (OCP) 测量和动电位极化 (PDP) 实验在 3 wt. % NaCl 和 1 M NaOH 以确定涂层的防腐性能。