In-situ investigation of atmospheric corrosion behavior of bronze under thin electrolyte layers using electrochemical technique

作     者：廖晓宁 曹发和 陈安娜 刘文娟 张鉴清 曹楚南 LIAO Xiao-ning;CAO Fa-he;CHEN An-na;LIU Wen-juan;ZHANG Jian-qing;CAO Chu-nan

作者机构：浙江大学化学系杭州310027 江西农业大学理学院南昌330045 中国科学院金属研究所腐蚀与防护国家重点实验室沈阳110016 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2012年第22卷第5期

页      面：1239-1249页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Projects (51131005, 51171172, 50801056) supported by the National Natural Science Foundation of China Project (Y4110074) supported by Natural Science Foundation of Zhejiang Province, China 

主　　题：bronze thin electrolyte layer in-situ investigation atmospheric corrosion electrochemical technique 

摘      要：The atmospheric corrosion behavior of bronze under thin electrolyte layer （TEL） with different thicknesses was monitored using cathodic polarization curves, open circuit potential （OCP） and electrochemical impedance spectroscopy （EIS）. Cathodic polarization result indicates that the cathodic limiting current density increases with decreasing the TEL thickness. EIS result shows that the corrosion rate increases with decreasing the TEL thickness at the initial stage because the corrosion is dominated by the cathodic process, whereas after long immersion time, the corrosion degree with the TEL thickness is in the sequence of 150 μm 〉 310 μm〉 10μm ≈ bulk solution 〉 57 μm. The measurements of OCP and EIS present in-situ electrochemical corrosion information and their results are in good agreement with that of physical characterizations.