A Comparative Study on the Corrosion Behavior of 316L and 304 Stainless Steels in a Simulated Alkaline Environment for Lithium Extraction

被引：2
|
作者：
Xu, Kexin [1 ]
Zhu, Min [1 ]
Zhou, Jian [1 ]
Shen, Fangming [2 ]
Zhang, Jinjian [2 ]
Zhao, Baozhu [3 ]
机构：
[1] Zhejiang Sci Tech Univ, Sch Mech Engn & Automat, Hangzhou 310018, Peoples R China
[2] Zhejiang Quzhou Yongzheng Lithium Technol Co Ltd, Quzhou 324012, Peoples R China
[3] CRRC Nanjing Puzhen Co Ltd, Nanjing 210031, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2022年 / 17卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Corrosion behavior; Intergranular corrosion; Passive film; Alkaline environment; WEATHERING STEEL; ION; LI; COMPATIBILITY; EVOLUTION; ELECTRODE; TYPE-304; AISI-304; CARBON; LAYERS;
D O I：
10.20964/2022.12.103
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The corrosion behavior of 316L SS and 304 SS in an alkaline environment of lithium extraction from salt-lake was investigated by using electrochemical measurements and immersion test. 316L SS exhibits better corrosion resistance in comparison to 304SS, which is indicated by smaller passive current density (ip), lower carrier densities (ND and NA), and greater passive film resistance (Rf), as well as higher charge transfer resistance (Rct). The two stainless steels occur obvious intergranular corrosion, and severe corrosion characteristics are presented inside the grain of 304 SS. The difference in the corrosion behavior of the two stainless steels are related to chemical composition, grain size, number of twins, oxide and passive film.
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页数：14
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