氧化电压对钛合金彩色阳极氧化膜性能的影响  

Effect of Oxidation Voltage on the Properties of Color Anodic Oxidation Film of Titanium Alloy

作　　者：徐晓梅 陈同彩 张玉清 王春霞 吴光辉 XU Xiaomei;CHEN Tongcai;ZHANG Yuqing;WANG Chunxia;WU Guanghui(Analysis and Testing Center,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学分析测试中心,江西南昌330063

出　　处：《电镀与精饰》2022年第6期1-6,共6页Plating & Finishing

摘　　要：为了研究氧化电压对钛合金阳极氧化膜颜色及性能的影响,采用硫酸-磷酸的复合电解液体系和单脉冲供电方式,在不同氧化电压下制备了阳极氧化膜。利用场发射扫描电镜观察氧化膜的微观形貌变化,采用显微硬度计、表面粗糙度仪、接触角测量仪分别测量膜层的硬度、粗糙度及接触角,利用电化学工作站分析各膜层的耐蚀性能。结果表明:氧化膜的颜色在45 V时为黄色,50~60 V时为紫色,70 V时为浅蓝色,75 V时为绿色。当氧化电压为65 V时,氧化膜为蓝色,氧化膜粗糙度为0.939μm,硬度为361.6 HV_(0.2),接触角为89.2°,自腐蚀电流密度为2.004×10^(-7)A·cm^(-2),耐蚀性较好。In order to study the effect of oxidation voltage on the color and performance of anodic oxide film of titanium alloy,the anodic oxidation film was prepared using sulfuric acid-phosphoric acid composite electrolyte system and single-pulse power supply under different oxidation voltages.The changes of microscopic morphology of the oxide films were observed by the field emission scanning electron microscope,the hardness,roughness and contact angle of the films were measured by microhardness tester,surface roughness tester and contact angle measuring instrument,and the corrosion resistance of each film was analyzed by electrochemical workstation.The results showed that the color of oxide film was yellow at 45 V,purple at 50‒60 V,light blue at 70 V and green at 75 V.When the oxidation voltage was 65 V,the oxide film was blue,the roughness of the oxide film was 0.939μm,the hardness was 361.6 HV_(0.2),the contact angle was 89.2°,the corrosion current density was 2.004×10^(-7)A·cm^(-2),and the corrosion resistance was good.

关 键 词：钛合金阳极氧化 电压 颜色 致密性 

分 类 号：TG174.451[金属学及工艺—金属表面处理]