X80管线钢表面掺氟类金刚石薄膜在完井液中的腐蚀行为研究  

Study on Corrosion Behaviors of Fluorine-doped Diamond-like Films on Surface of X80 Pipeline Steels in Completion Fluid

作　　者：姚子健 任毅 陈东旭[1] 李静[1] 周艳文[1] YAO Zijian;REN Yi;CHEN Dongxu;LI Jing;ZHOU Yanwen(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,Liaoning,China;State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114009,Liaoning,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051 [2]海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山114009

出　　处：《鞍钢技术》2023年第6期104-110,共7页Angang Technology

摘　　要：采用等离子体增强化学气相沉积技术在X80管线钢表面制备掺氟类金刚石薄膜,使用原子力显微镜对薄膜表面三维形貌进行表征。通过划痕实验和摩擦磨损实验对薄膜的机械性能进行表征,利用电化学阻抗谱与动电位极化曲线对薄膜在完井液环境下的腐蚀行为进行分析。结果表明:随着掺氟量的增加,薄膜表面粗糙度增大,薄膜与基体的结合强度提高,耐磨性能降低。薄膜的耐蚀性能随着掺氟量的增加表现出先增大后减小的变化规律。Fluorine-doped diamond-like films were prepared on the surface of the X80 pipeline steels by plasma enhanced chemical vapor deposition technology and then the three-dimensional morphology of the film surface was characterized by atomic force microscope.The mechanical properties of the films were characterized by scratch testing and friction and wear testing,and the corrosion behaviors of the films in completion fluid environment were analyzed by electrochemical impedance spectroscopy and potentiodynamic polarization curves.The analytical results showed that with the increasing content of fluorine,the surface roughness of the films increased,the bonding strength between the films and their substrates increased while the wear resistance decreased.On the other hand,the corrosion resistance of the films increased first and then decreased with the increasing content of fluorine.

关 键 词：类金刚石薄膜 X80管线钢 元素掺杂 电化学阻抗谱 

分 类 号：TG142[一般工业技术—材料科学与工程]