文献类型：期刊文献

中文题名：Influence of Formic Acid on Corrosion Behavior of Bronze under Thin Electrolyte Layer

英文题名：Influence of Formic Acid on Corrosion Behavior of Bronze under Thin Electrolyte Layer

作者：Tang Yijing[1];Cai Lankun[1];Wang Ying[1];Wang Min[1];Zhou Hao[2];Wu Laiming[2];Yan Ying[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]Shanghai Museum, Shanghai 200050, Peoples R China

年份：2022

卷号：37

期号：3

起止页码：482

中文期刊名：Journal of Wuhan University of Technology(Materials Science)

外文期刊名：JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION

收录：CSTPCD;;EI(收录号：20222412215870);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000810030300024)】；PubMed;

基金：Funded by the National Natural Science Foundation of China (No. 51671117) and the National Key Research and Development Program (No. 2018YFC1901000)

语种：英文

中文关键词：EIS;bronze;formic acid;atmospheric corrosion

外文关键词：EIS; bronze; formic acid; atmospheric corrosion

摘要：The corrosion behavior of formic acid towards bronze under thin electrolyte layer(TEL)was investigated by means of electrochemical measurement.Bare bronze had smaller self-corrosion current density than Cu_(2)O patina bronze and CuCl patina bronze,while it had higher polarization resistance.The corrosion behavior of bronze materials had differences in various TELs and bulk solutions.The critical thickness of TEL for Bare Bronze was 200μm,which normly occurred in the transformation from anode control to cathode control.The thickness of TEL had a negligible effect on the corrosion rate of Cu_(2)O patina bronze when it was greater than 150μm.For CuCl patina bronze,the corrosion process accelerated with thinner TEL.SEM was used to analyze the morphology and composition of corrosion products.Cu_(2)O,Cu(OH)(HCOO)and Cu(HCOO)_(2)were formed on the surface of Bare Bronze and Cu_(2)O patina bronze,nevertheless,the main corrosion product of CuCl patina bronze was Cu_(2)Cl(OH)_(3).
The corrosion behavior of formic acid towards bronze under thin electrolyte layer (TEL) was investigated by means of electrochemical measurement. Bare bronze had smaller self-corrosion current density than Cu2O patina bronze and CuCl patina bronze, while it had higher polarization resistance. The corrosion behavior of bronze materials had differences in various TELs and bulk solutions. The critical thickness of TEL for Bare Bronze was 200 mu m, which normly occurred in the transformation from anode control to cathode control. The thickness of TEL had a negligible effect on the corrosion rate of Cu2O patina bronze when it was greater than 150 mu m. For CuCl patina bronze, the corrosion process accelerated with thinner TEL. SEM was used to analyze the morphology and composition of corrosion products. Cu2O,Cu(OH)(HCOO) and Cu(HCOO)(2) were formed on the surface of Bare Bronze and Cu2O patina bronze, nevertheless, the main corrosion product of CuCl patina bronze was Cu2Cl(OH)(3).