期刊
CORROSION REVIEWS
卷 39, 期 5, 页码 433-443出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/corrrev-2020-0070
关键词
corrosion resistance; crevice corrosion; EIS; galvanic corrosion; pitting
资金
- National Natural Science Foundation of China [51975084, 51405059]
- Fundamental Research Funds for the Central Universities [DUT19LAB16]
This paper presents a research on the corrosion behavior of Ti-15-3 alloy overlapped with aluminized PVC film in salt spray. It reveals severe corrosion on aluminized PVC film in the coupled regions due to crevice and/or galvanic corrosion, while Ti-15-3 alloy in the coupled regions only experienced minor corrosion. Through electrochemical and microscopy analysis, the corrosion mechanism under different conditions is revealed.
This paper presents a research on the corrosion behavior of Ti-15-3 alloy overlapped with aluminized PVC film in salt spray. It was found that severe corrosion occurred on aluminized PVC film in the coupled regions because of crevice corrosion and/or galvanic corrosion whereas Ti-15-3 alloy in the coupled regions experienced minor corrosion. Scanning electron microscope and Energy-dispersive X-ray spectroscopy analyses demonstrated the corrosion products adhered to the surface of Ti15-3 alloy within the crevice. To evaluate the effect of aluminized PVC film on the crevice corrosion of Ti-15-3 alloy in salt spray condition, it is necessary to compare with the corrosion resistance of Ti-15-3 overlapped with polytetrafluoroethylene (PTFE) in different neutral salt spray. Further, the tests were performed by electrochemical impedance spectroscopy and potentiodynamic polarization. Combining the graphical model, an in-depth understanding of the crevice and galvanic corrosion mechanism of Ti-15-3 alloy overlapped with aluminized PVC film has been revealed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据