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

作　　者：何逸 郑传波[1,2] 戚浩宇 刘珍光 HE Yi;ZHENG Chuanbo;QI Haoyu;LIU Zhenguang(School of Metallurgy Engineering,Jiangsu University of Science and Technology,Suzhou 215000,China;School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China)

机构地区：[1]江苏科技大学冶金工程学院,苏州215000 [2]江苏科技大学材料科学与工程学院,镇江212000

出　　处：《中国腐蚀与防护学报》2024年第1期71-81,共11页Journal of Chinese Society For Corrosion and Protection

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SO_(2)污染物的结合对TP2紫铜表面造成了更严重的破坏,SO_(2)污染物含量的增加也使情况变得更为严重。与乙酸气氛和SO_(2)污染物的组合相比,甲酸气氛和SO_(2)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。With excellent electrical and thermal conductivity,TP2 copper has a wide range of applications 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 organic acid pollutants in operating ambient of TP2 copper is at the high level,which may accelerate the occurrence of organic acid corrosion on the surface of TP2 copper.In order to simulate the organic acids induced corrosion behavior of TP2 copper in industrial environments,the TP2 copper was assessed via immersion 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 characterization.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 concentration,the much severe the corrosion of the TP2 copper.In addition,the combination of the organic acid containing atmosphere and SO_(2) pollutants may cause much severe corrosion damage of the TP2 copper surface,and the higher content of the SO_(2) pollutants,the severe the corrosive conditions.Besides,much severe corrosion and complexity of the corrosion behavior emerged on the surface of the TP2 copper in the atmosphere of co-existance of SO_(2) 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 

分 类 号：TG174[金属学及工艺—金属表面处理]