光纤腐蚀传感器Fe-C薄膜电沉积工艺研究  

Electrodeposition process of Fe-C film for fiber optic corrosion sensor

作　　者：叶成茁 丁运虎[1] 毛祖国[1] 马爱华[1] 黄兴林[1] 王柱元 黄朝志[1] Ye Chengzhuo;Ding Yunhu;Mao Zuguo;Ma Aihua;Huang Xinglin;Wang Zhuyuan;Huang Chaozhi(Wuhan Research Institute of Materials Protection,Wuhan 430030,China)

机构地区：[1]武汉材料保护研究所,湖北武汉430030

出　　处：《电镀与精饰》2023年第2期49-55,共7页Plating & Finishing

摘　　要：研究了一种光纤上电沉积制备Fe-C合金的工艺:首先对光纤粗化处理,通过化学镀制备金属薄膜中间层,再电镀Fe-C合金。采用电化学工作站考察添加剂对腐蚀电位的影响,利用SEM和EDS对镀层微观形貌和元素组成进行分析。通过单因素实验和正交试验对工艺参数进行筛选优化,结合赫尔槽实验对试片进行分析,确定了电镀工艺参数为:十二烷基硫酸钠0.20 g/L、糖精钠1.0~1.5 g/L、柠檬酸2.0 g/L、抗坏血酸7.0 g/L、温度30℃、pH为3.0、阴极电流密度0.3~1.0 A/dm^(2)。采用电镀Fe-C合金工艺制备的镀层在成分和腐蚀规律上与碳钢类似,可以用来制备腐蚀传感器。A technique for preparing Fe-C alloy by optical fiber electrodeposition was studied.First,the optical fiber was coarsened,the intermediate layer of metal film was prepared by electroless plating,and then the Fe-C alloy was electroplated.Electrochemical workstation was used to test the influence of additives on the corrosion potential,SEM was used to observe the microstructure of the coating,and EDS was used to analyze the element composition of the coating.Single factor experiment and orthogonal experiment were used to optimize the process parameters,and the samples were analyzed by Hull cell experiment.The plating process parameters were determined as follows:sodium dodecyl sulfate 0.20 g/L,sodium saccharin 1.0-1.5 g/L,citric acid 2.0 g/L,ascorbic acid 7.0 g/L,temperature 30℃,pH 3.0,cathode current density 0.3-1.0 A/dm^(2).The results showed that the coatings prepared by electroplating Fe-C alloy were similar to carbon steel in composition and corrosion regulation,and can be used to fabricate corrosion sensors.

关 键 词：电化学沉积 FE-C合金 光纤腐蚀传感器 

分 类 号：TQ153.1[化学工程—电化学工业]