返回届次CSCP-ICC-2024-073

Inhibiting Effect Of NO3- On The Corrosion Behavior Of Q420 Steel In Cl-Solution

作者

KaiZhi Sha1-2 YiQing Chen1-2 XiDong Su1-2 HongYu San1-2 Bin Zhong1-2 Peng Gao1-2 Lin Li1-2 FangFang Ai1-2 Zihan Yu1-2

单位

1State Key Laboratory of Metallic Materials and Their Applications for Marine Equipment、LiaoNing AnShan 114009 2 Iron and steel Research Institute of Angang Group、LiaoNing AnShan 114009

关键词

Q420 steelcorrosionInhibiting Effectnitrate ionschloride. Reference (followed the APA 7th) [1] Graedel T EFrankenthal R P. Cheminform Abstract: Corrosion mechanisms for iron and low alloy steels exposed to the atmosphere. Cheminform199021(42):2385- [2] Corvo FBetancourt NMendoza A. The influence of airborne salinity on the atmospheric corrosion of steel. Corrosion Science199537(12):1889-1901 [3]ShuFei JiaoYanZhen YinJinLu Liangat. Steel corrosion in Marine environment simulation studies[J]. Chemical technology and development201342(8):48-50. [4]Lin LiYiQing Chenat. Corrosion behavior of Q420qENH steel in simulated Marine environment[J]. corrosion and protection201637(10):797-807.

收录来源

International Corrosion Congress · 第22届国际腐蚀大会

摘要

The influence of nitrate ions on the corrosion of Q 420 steel in chloride environment was studied by electrochemical means. The results show that in solutions where the ratio of nitrate ions to chloride ions is greater than 0.09%, nitrate ions have an inhibitory effect on the corrosion of Q420 steel in chlo ride environment. However, no inhibitory effect was observed in solutions where the ratio of nitrate ions to chloride ions is less than 0.09%. Furthermore, nitrate ions are unable to inhibit pitting corrosion of Q420 steel in chloride environment.

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