期刊
CORROSION SCIENCE
卷 188, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2021.109528
关键词
Sputtered films; EIS; SEM; Interface; Pitting corrosion
资金
- A-class pilot of the Chinese Academy of Sciences [XDA22010303]
- National Science Fund for Distinguished Young Scholars of China [52025014]
- CAS Interdisciplinary Innovation Team [292020000008]
- K.C. Wong Education Foundation of Chinese Academy of Science [GJTD-2019-13]
The study evaluated the corrosion behavior of the multilayered Cr/GLC coating in artificial seawater under different pressure conditions, showing that the corrosion resistance was better at 1 atm but deteriorated significantly at 300 atm. The results suggest the importance of fabricating dense coatings for deep-sea applications.
In this work, the corrosion behavior of the multilayered Cr/GLC coating was evaluated in artificial seawater by comparison at an atmospheric pressure (1 atm) and a higher hydrostatic pressure (300 atm). The results revealed that the corrosion resistance of the coating was more favorable at 1 atm, but the hydrostatic pressure deteriorated coating protectiveness significantly by rapidly accelerating seawater diffusion through the growth defect and promoting the exposure of the substrate. The localized corrosion induced by the penetrating defect became more susceptible. This study is helpful to bring forward the significant guideline to fabricate the dense coating for deep-sea applications.
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