Influence of Temperature on Corrosion Behavior of 2A02 Al Alloy in Marine Atmospheric Environments.

作者信息

Cao Min, Liu Li, Fan Lei, Yu Zhongfen, Li Ying, Oguzie Emeka E, Wang Fuhui

机构信息

Corrosion and Protection Division, Shenyang National Laboratory for Material Science, Northeastern University, NO. 3-11, Wenhua Road, Heping District, Shenyang 110819, China.

Institute of Metal Research, Chinese Academy of Sciences, Wencui Road 62, Shenyang 110016, China.

出版信息

Materials (Basel). 2018 Feb 3;11(2):235. doi: 10.3390/ma11020235.

DOI:10.3390/ma11020235

PMID:29401690

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5848932/

Abstract

The corrosion behavior of 2A02 Al alloy under 4 mg/cm² NaCl deposition at different temperatures (from 30 to 80 °C) has been studied. This corrosion behavior was researched using mass-gain, scanning electron microscopy-SEM, laser scanning confocal microscopy-LSCM, X-ray photoelectron spectroscopy-XPS and other techniques. The results showed and revealed that the corrosion was maximal at 60 °C after 200 h of exposure. The increase of temperature not only affected the solubility of oxygen gas in the thin film, but also promoted the transport of ions (such as Cl), and the formation of protective AlO(OH), which further affects the corrosion speed.

摘要