Corrosion inhibition efficiency of compound nitrite with D-sodium gluconate on carbon steel in simulated concrete pore solution

被引：61

作者：

Xu, Peizhen ^{[1
]}

Zhou, Juan ^{[1
]}

Li, Gege ^{[1
]}

Wang, Penggang ^{[1
,2
]}

Wang, Pan ^{[1
]}

Li, Fan ^{[3
]}

Zhang, Binghe ^{[3
]}

Chi, Heng ^{[4
]}

机构：

[1] Qingdao Univ Technol, Sch Civil Engn, Qingdao 266033, Peoples R China

[2] Cooperat Innovat Ctr Engn Construct & Safety Shan, Qingdao 266033, Peoples R China

[3] Qingdao Metro Ling 8 Co Ltd, Qingdao 266033, Peoples R China

[4] Qingdao Technol Construct Ind Testing Technol Co, Qingdao 266033, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 288卷

基金：

中国国家自然科学基金;

关键词：

Compound nitrite with D-sodium gluconate; Simulated concrete pore solution; Carbon steel; Corrosion inhibition efficiency; Molecular dynamics simulation; REINFORCING STEEL; MILD-STEEL; ELECTROCHEMICAL-BEHAVIOR; AMINO ALCOHOL; RESISTANCE; SPECTROSCOPY; REBARS; PH;

D O I：

10.1016/j.conbuildmat.2021.123101

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The inhibitory performance and mechanism of compound nitrite with D-sodium gluconate on carbon steel in simulated concrete pore solution was studied. Results of EIS, SEM and AFM indicate that the pitting corrosion of the steel was effective hindered by corrosion inhibitor in the pore solution. XPS results shows that the stability of the passive film on carbon steel was enhanced by corrosion inhibitor, which explained the adsorption and inhibition behavior of composite nitrite. Molecular dynamics simulation results show that D-sg competed with chloride ions for adsorption and effectively weakened the adsorption of chloride ions on the surface of carbon steel.& nbsp; (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：12

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