Anticorrosive behavior assessment of electrodeposited zinc salicylate coating on carbon steel

The study focuses on the evaluation of a novel composite coating obtained from zinc salicylate (ZnSal). Ion distributions of salicylic acid and zinc(II) were surveyed at various acidities, and pH 9.5 was selected for the direct current electrodeposition of ZnSal/K 2 SO 4 on carbon steel substrate. T...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-07, Vol.2313 (1), p.12017
Main Authors: Yuan, Ronghui, Li, Yan, Ye, Xiangyu, Liu, Furong, Tian, Qiping, Wu, Qiwang
Format: Article
Language:English
Subjects:
Carbon steel
Carbon steels
Corrosion prevention
Corrosion rate
Dendritic structure
Direct current
Electrodeposition
Hysteresis loops
Physics
Potassium sulfate
Protective coatings
Salicylic acid
Steel plates
Substrates
Zinc
Zinc coatings
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Summary:The study focuses on the evaluation of a novel composite coating obtained from zinc salicylate (ZnSal). Ion distributions of salicylic acid and zinc(II) were surveyed at various acidities, and pH 9.5 was selected for the direct current electrodeposition of ZnSal/K 2 SO 4 on carbon steel substrate. The surface morpholgy of the ZnSal-steel coating was revealed by scanning electron microscopy, and compact deposited films with dendrite structures (specific surface area 247 m 2 g −1 , type-H3 BET hysteresis loop at relative pressures from 0.4 to 1.0) could be formed within 25-min plating time. NSST was conducted, and the test duration was 120 h. Preliminary assays were employed to assess its anticorrosive performance in salt spray, and the corrosion rate of the steel plates exhibited a nonlinear relationship with the exposure time. The results showed that the ZnSal-steel had a low corrosion rate
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2313/1/012017