Effect of surface damage induced by cavitation erosion on pitting and passive behaviors of 304L stainless steel

• Published in: International journal of minerals, metallurgy and materials Vol. 30; no. 7; pp. 1338 - 1352
• Main Authors: Li, Liang, Qiao, Yanxin, Zhang, Lianmin, Ma, Aili, Daniel, Enobong Felix, Ma, Rongyao, Chen, Jian, Zheng, Yugui
• Format: Journal Article
• Language: English
• Published: Beijing University of Science and Technology Beijing 01.07.2023; Springer Nature B.V; School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China; CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China%School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China%CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China%Shenyang National Research Center for Materials Science,Institute of Metals,Chinese Academy of Sciences,Shenyang 110016,China
• Subjects: Austenitic stainless steels; Cavitation; Cavitation erosion; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Corrosion; Corrosion and Coatings; Corrosion resistance; Electrochemical noise; Electrochemistry; Flow velocity; Glass; Localized corrosion; Materials Science; Metallic Materials; Natural Materials; Passivity; Pitting (corrosion); Sodium chloride; Stainless steel; Surfaces and Interfaces; Thin Films; Titanium alloys; Tribology; cavitation erosion; stainless steel; pitting; electrochemical noise
• ISSN: 1674-4799; 1869-103X
• DOI: 10.1007/s12613-023-2602-0

The corrosion behavior of 304L stainless steel (SS) in 3.5wt% NaCl solution after different cavitation erosion (CE) times was mainly evaluated using electrochemical noise and potentiostatic polarization techniques. It was found that the antagonism effect resulting in the passivation and depassivation of 304L SS had significant distinctions at different CE periods. The passive behavior was predominant during the incubation period of CE where the metastable pitting initiated at the surface of 304L SS. Over the rising period of CE, the 304L SS experienced a transition from passivation to depassivation, leading to the massive growth of metastable pitting and stable pitting. The depassivation of 304L SS was found to be dominant at the stable period of CE where serious localized corrosion occurred.