A Novel Inhibitor for L921A Alloy Steel in a 3.5 % NaCl Solution. (19th June 2018)

• Record Type: Journal Article
• Authors: Yong, Xingyue; Chen, Zhenglin; Zhou, Lin; Jiang, Lin; Chen, Rihui
• Is Part Of: ECS transactions. Volume 85:Number 13(2018)
• Page Start: 693
• Page End: 700
• Publication Date: 2018-06-19
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/08513.0693ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : A novel corrosion inhibitor for L921A steel in a 3.5 % NaCl solution was formulated. Its pitting resistance and electrochemical mechanism were studied by the combination of elecrochemical technologies with surface analysis techniques. The results showed that the inhibitor was a mixed type of inhibitor with a good pitting corrosion-resistant performance to L921A steel in a 3.5% NaCl solution and its inhibitory efficiency was up to 95.0 %. The inhibitory film was composed of deposit film, absorbed organic compounds and oxides film. L921A steel in a 3.5 % NaCl solution was sensitive to pitting corrosion. However, EIS spectra changed with immersion time when the inhibitor was added into a 3.5 % NaCl solution. The thickness of inhibitory film increased with increasing immersion time, the electrocchemical impedance increased. Finally, the corrosion of L921A steel in a 3.5% NaCl solution was retarded.