Corrosion Inhibition of Aluminum Alloy by a Composition of Guar Gum and Tartrate

被引：4
|
作者：
Tymus, M. B. [1 ]
Zin, I. M. [1 ,2 ]
Khlopyk, O. P. [1 ]
Pokhmurskii, V., I [1 ]
Holovchuk, M. Ya [1 ]
Korniy, S. A. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, Lvov, Ukraine
[2] Lviv Polytech Natl Univ, Lvov, Ukraine
来源：
MATERIALS SCIENCE | 2022年 / 57卷 / 05期
关键词：
corrosion; aluminum alloy; chloride-containing media; guar gum; tartrate salt; electrochemical impedance spectroscopy; scanning electron microscopy; degree of protection; EXTRACTS;
D O I：
10.1007/s11003-022-00595-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the corrosion inhibition of duralumin alloy by a natural polymer, namely, guar gum. It is shown that the corrosion inhibition efficiency of this inhibitor in a 0.1% sodium chloride solution becomes much higher in the case of its combination with tartrate salt in a single composition. According to the results of electrochemical impedance spectroscopy and X-ray energy dispersive microanalysis of the surface of alloy, in a corrosive solution inhibited by a "guar gum + tartrate salt" composition, we observe the formation of an adsorption film guaranteeing a degree of protection of the metal higher than 90%. The investigated inhibitory composition efficiently acts upon the mechanically activated surface of duralumin alloy, which makes it promising for application under the conditions of tribocorrosion.
引用
收藏
页码：679 / 687
页数：9
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