Effect of corrosion products and turbulent flow on inhibition efficiency of propargyl alcohol on AISI 1018 mild carbon steel in 4 M hydrochloric acid

被引：26

作者：

Barmatov, Evgeny ^{[1
]}

Hughes, Trevor L. ^{[1
]}

机构：

[1] Schlwnberger Gould Res, Madingley Rd, Cambridge CB3 0EL, England

来源：

CORROSION SCIENCE | 2017年 / 123卷

关键词：

Acid solutions; Carbon steel; Erosion; Acid inhibition; CARBIDE; SURFACE; IRON;

D O I：

10.1016/j.corsci.2017.04.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The role of corrosion products formed by pre-corrosion of AISI 1018 mild carbon steel on the efficiency of the polymerizable corrosion inhibitor propargyl alcohol in 4 M HCl at 80 degrees C under laminar and turbulent flow conditions was studied. Propargyl alcohol is less efficient on the pre-corroded steel than on freshly ground specimens due to the presence of corrosion products, such as cementite (Fe3C) and a C-rich phase formed by acid hydrolysis of cementite. The adverse effect of pre-corrosion can be suppressed by proper optimization of the inhibitor composition and the inhibitor dosage.

引用

页码：170 / 181

页数：12

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