Microstructural, wettability, and corrosion behaviour of TiO_(2) thin film sputtered on aluminium  

铝合金上射频溅射二氧化钛涂层的微观结构、润湿性和耐腐蚀行为

作　　者：Rajeev VERMA Vijay KUMAR Saurabh KANGO Amindra KHILLA Rajeev GUPTA 

机构地区：[1]Department of Industrial and Production Engineering,Dr B R Ambedkar National Institute of Technology Jalandhar,Jalandhar-144008,Punjab,India [2]Department of Mechanical Engineering,Dr B R Ambedkar National Institute of Technology Jalandhar,Jalandhar-144008,Punjab,India [3]Department of Physics,School of Engineering,University of Petroleum&Energy Studies,Dehradun 248007,Uttarakhand,India

出　　处：《Journal of Central South University》2024年第7期2210-2224,共15页中南大学学报（英文版）

摘　　要：The study investigated the application of radiofrequency(RF)-sputtered TiO2 coatings at various temperatures to enhance the hydrophobicity and corrosion resistance of Al6061 alloy.The research aimed to establish a correlation between the coating process and the resulting surface properties.Surface roughness and wettability were quantified with a surface profilometer and goniometer.Additionally,chemical boiling and salt spray corrosion tests were conducted to evaluate any topographical changes during these procedures.The analysis further involved the use of field-emission scanning electron microscopy(FESEM),energy-dispersive spectroscopy(EDS),and X-ray diffraction(XRD)techniques to characterize the deposited coatings.The findings indicated that the TiO2 coating applied at 500℃exhibited the highest water contact angle and superior corrosion resistance compared to other temperatures.Surface characterization confirmed that this specific TiO_(2) coating at 500℃ effectively delays corrosion due to its hydrophobic behavior,making it durable for industrial applications.在不同温度下,在Al6061合金表面射频溅射二氧化钛涂层,以改善其疏水性和耐腐蚀性,旨在了解射频溅射工艺对二氧化钛涂层性能的影响规律。使用表面轮廓仪和测角仪测量表面粗糙度和润湿性,通过化学沸腾法和盐雾腐蚀法过程中形貌变化来研究耐腐蚀性能。使用场发射扫描电子显微镜(FESEM)、能量色散光谱(EDS)和X射线衍射(XRD)技术来表征涂层。结果表明,与其他温度相比,在500℃得到的二氧化钛涂层具有最高的水接触角和优越的耐腐蚀性。表面表征证实了这种500℃得到的二氧化钛涂层由于其好的疏水性,有效地延缓了腐蚀,使其持久用于工业应用。

关 键 词：aluminium TiO_(2) coating radiofrequency-sputtering HYDROPHOBIC corrosion 

分 类 号：TG174.4[金属学及工艺—金属表面处理]