Corrosion behavior of aluminum alloys in acidic media

被引：0

作者：

Ramli, Rosliza ^{[2
]}

Seoh, S. Y. ^{[1
]}

Nik, W. B. Wan ^{[1
]}

Senin, H. B. ^{[1
]}

机构：

[1] Terengganu Adv Tech Inst, Teluk Kalong, Kemaman 24000, Terengganu, Malaysia

[2] Univ Sci & Technol, Fac Sci & Tech, Kuala Lumpur 21030, Malaysia

来源：

SOLID STATE SCIENCE AND TECHNOLOGY | 2007年 / 909卷

关键词：

aluminum; aluminum alloys; corrosion; corrosion inhibition;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion inhibition of Al and its alloys are the subject of tremendous technological importance due to the increased industrial applications of these materials. This study will report the results of weight loss, polarization and electrochemical impedance spectroscopic (EIS) measurements on the corrosion inhibition of AA6061 and AA6063 aluminum alloys in acidic media using sodium benzoate as an inhibitor. The results showed that addition of sodium benzoate retards the rate of dissolution and hence inhibits the corrosion of the aluminum alloy in acidic media. The inhibition efficiency increases with the increase of immersion time in acetic acid however it displays a different behavior in sulfuric acid. Langmuir adsorption isotherm fits well with the experimental data. EIS studies showed that there was a significant increase in overall resistance after addition of sodium benzoate, when compared to the case without inhibitor. Langmuir adsorption isotherm fits well with the experimental data.

引用

页码：220 / +

页数：2