Inhibition mechanism of air nanobubbles on brass corrosion in circulating cooling water systems  

作　　者：Yuling Zhang Shaolei Lu Delie Li Haiyang Duan Congwen Duan Jinghong Zhang Songtao Liu 

机构地区：[1]Department of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China [2]MOE Key Laboratory of Resources and Environmental Systems Optimization,College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第10期168-181,共14页中国化学工程学报（英文版）

基　　金：supported by National Natural Science Foundation of China(52170074).

摘　　要：Air nanobubbles(A-NBs)were used to inhibit the brass corrosion in circulating cooling water for the first time in the study.The results of mass loss method and electrochemical method showed that A-NBs had the obvious corrosion inhibition effect.The inhibition rate reached 52%at 35℃.The impedance and surface characterization results of corrosion samples indicated that the corrosion inhibition mechanisms of A-NBs mainly included adsorption of corrosion ions,promoting the formation of the passivation film on metal surface and the formation of the bubble layer and scale film on metal surface.A-NBs are potential excellent corrosion inhibitors.

关 键 词：BRASS Air nanobubble Passivation film Bubble layer Corrosion inhibition 

分 类 号：TG178[金属学及工艺—金属表面处理]