TP2紫铜在工业环境中腐蚀行为的研究
Corrosion Behavior of TP2 Red Copper in Simulated Organic Acids Containing Industrial Environments
何逸 1郑传波 2戚浩宇 3刘珍光3
作者信息
- 1. 江苏科技大学冶金工程学院 苏州 215000
- 2. 江苏科技大学冶金工程学院 苏州 215000;江苏科技大学材料科学与工程学院 镇江 212000
- 3. 江苏科技大学材料科学与工程学院 镇江 212000
- 折叠
摘要
通过结合表征测试、腐蚀失重测试以及电化学测试方法,并模拟TP2紫铜在工业生产中的环境,以分析材料在工业环境中的腐蚀行为.结果表明,与乙酸气氛相比,TP2铜在含有甲酸的腐蚀性气氛的作用下表现出更严重的腐蚀倾向,并且有机酸浓度的增加使材料的腐蚀更加严重.此外,有机酸大气和SO2污染物的结合对TP2紫铜表面造成了更严重的破坏,SO2污染物含量的增加也使情况变得更为严重.与乙酸气氛和SO2污染物的组合相比,甲酸气氛和SO2污染物的组合对TP2紫铜表面表现出严重而复杂的腐蚀行为.
Abstract
With excellent electrical and thermal conductivity,TP2 copper has a wide range of applica-tions in industrial production process.During the practical production process,a large amount of organic acid pollutants containing carboxylic acid ions will be generated.Meanwhile,as a result of the defects of TP2 copper and the impact of moisture and corrosive media in the external environment,the content of or-ganic acid pollutants in operating ambient of TP2 copper is at the high level,which may accelerate the oc-currence of organic acid corrosion on the surface of TP2 copper.In order to simulate the organic acids in-duced corrosion behavior of TP2 copper in industrial environments,the TP2 copper was assessed via im-mersion tests in solutions with different organic acid concentrations temperature-cyclically,by means of measurements of mass loss Tafel polarization and electrochemical impedance,as well as SEM character-ization.The results show that in comparison to the acetic acid containing atmosphere,TP2 copper exhibits stronger corrosion tendency in the formic acid containing ones,while the higher the organic acid concentra-tion,the much severe the corrosion of the TP2 copper.In addition,the combination of the organic acid con-taining atmosphere and SO2 pollutants may cause much severe corrosion damage of the TP2 copper sur-face,and the higher content of the SO2 pollutants,the severe the corrosive conditions.Besides,much se-vere corrosion and complexity of the corrosion behavior emerged on the surface of the TP2 copper in the atmosphere of co-existance of SO2 pollutants and with formic acid rather than that with acedic acid.
关键词
TP2紫铜/有机酸/SO2污染物/电化学行为Key words
TP2 copper/organic acids/SO2 contaminants/electrochemical behavior引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据