Protection of low-carbon steel from corrosion in hydrochloric acid by 4-substituted 1,2,4-triazole

被引：2
作者：
Tyurina, M. V. [1 ]
Avdeev, Ya. G. [1 ]
Kazanskii, L. P. [1 ]
Luchkin, A. Yu. [1 ]
Kireeva, O. A. [1 ]
机构：
[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2016年 / 52卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
low-carbon steel; acidic corrosion; inhibitors; acid etcing; triazoles; RAY PHOTOELECTRON-SPECTROSCOPY; MILD-STEEL; TRIAZOLE DERIVATIVES; STAINLESS-STEELS; OXIDE-FILMS; XPS; INHIBITION; ADSORPTION; IRON; THICKNESS;
D O I：
10.1134/S2070205116070157
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A new corrosion inhibitor of low-carbon steel in hydrochloric acid solutions, IFKhAN-96, which is a derivative of 4-substituted 1,2,4-triazole and is more efficient than the known industrial inhibitor catamine AB, has been developed. Based on data of weight loss studies, IFKhAN-96 can be used for protection of low-carbon steels in hydrochloric acid solutions with wide ranges of concentration (1.0-6.0 M) and temperature (25-95A degrees C). XPE spectroscopy showed that the high protective action of the IFKhAN-96 inhibitor against corrosion of steel is a consequence of the formation of the protective layer on the metal surface, which consists of a mixture of iron(II) chloride and oxide with a thickness of 4-7 nm. The adsorbed monolayer of IFKhAN-96 inhibitor is located above it.
引用
收藏
页码：1147 / 1152
页数：6
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