Abstract：
Doped graphite-like coating (GLC) has aroused great interest as one of the most promising protective materials in marine applications. However, there is a lack of systematic research on the tribocorrosion and antifouling performance of doped GLC coatings in harsh marine environments. Herein, a multifunctional (Cr, Cu)-GLC coating with combined antifouling and tribocorrosion properties was prepared via a magnetron sputtering method. The experimental results indicate that the resultant coatings changed from a dense structure to a loose columnar structure with the increment of Cr and Cu doping amount. At the same time, the hardness of the coating gradually decreases, but the contact angle between coating and seawater gradually increases. The algae adhesion test reveal that the algae density on the surface of the (Cr, Cu)-GLC coating decreases from about 565 to 70/mm2 as the amount of doping increased. However, on the contrary, the friction coefficient of the coating under OCP condition increases from 0.06 to about 0.35. Overall, the mild doped (Cr, Cu)-GLC coating exhibits the best comprehensive properties, combining antifouling and tribocorrosion properties. The corresponded mechanisms are discussed in terms of the coating microstructure, antifouling, and tribocorrosion behavior.
摘要：
掺杂类石墨涂层（GLC）作为海洋应用中最有前途的保护材料之一引起了人们的极大兴趣。然而,对掺杂GLC涂层在恶劣海洋环境中的摩擦腐蚀和防污性能缺乏系统的研究。在这里，多功能(Cr，通过磁控溅射法制备了具有防污和摩擦腐蚀性能的Cu）-GLC涂层。实验结果表明，随着Cr和Cu掺杂量的增加，所得涂层从致密结构变为松散的柱状结构。同时,涂层的硬度逐渐降低，但涂层与海水的接触角逐渐增大。藻类粘附测试表明，藻类在表面的密度（Cr，随着掺杂量的增加，Cu）-GLC涂层从约565个/mm2减少到70个/mm2。然而,相反,涂层在OCP条件下的摩擦系数从0.06增加到约0.35。总的来说,轻度掺杂(Cr，Cu)-GLC涂层综合性能最好,结合防污和摩擦腐蚀性能。根据涂层的微观结构讨论了相应的机理，防污,和摩擦腐蚀行为。
