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Role of Coating Processes on the Corrosion Kinetics and Mechanism of Zinc in Artificial Seawater

Title
Role of Coating Processes on the Corrosion Kinetics and Mechanism of Zinc in Artificial Seawater
Author
지텐드라 쿠마 싱
Keywords
zinc; coating; corrosion; thermal spray; electrochemical impedance spectroscopy; scanning electron microscope
Issue Date
2021-12
Publisher
MDPI
Citation
MATERIALS, v. 14, NO 23, Page. 1-19
Abstract
Zinc (Zn) coating is being used to protect steel structures from corrosion. There are different processes to deposit the coating onto a steel substrate. Therefore, in the present study, a 100 mu m thick Zn coating was deposited by arc and plasma arc thermal spray coating processes, and the corrosion resistance performance was evaluated in artificial seawater. Scanning electron microscopy (SEM) results showed that the arc thermal spray coating exhibited splats and inflight particles, whereas plasma arc spraying showed a uniform and dense morphology. When the exposure periods were extended up to 23 d, the corrosion resistance of the arc as well as the plasma arc thermal spray coating increased considerably. This is attributed to the blocking characteristics of the defects by the stable hydrozincite (Zn-5(OH)(6)(CO3)(2)).
URI
https://www.proquest.com/docview/2608137094?accountid=11283https://repository.hanyang.ac.kr/handle/20.500.11754/172333
ISSN
19961944
DOI
10.3390/ma14237464
Appears in Collections:
OFFICE OF ACADEMIC AFFAIRS[E](교무처) > Center for Creative Convergence Education(창의융합교육원) > Articles
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