Surface Modification of Mild Steel by Orthophenylenediamine and Its Corrosion Study

被引：0

作者：

Sachin, H. P. ^{[1
]}

Khan, M. H. Moinuddin ^{[1
]}

Bhujangaiah, N. S. ^{[1
]}

机构：

[1] Jawaharlal Nehru Natl Coll Engn, Dept Chem, Shimoga 577204, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2009年 / 4卷 / 01期

关键词：

Surface modification; Corrosion inhibition; Mild steel; COLD-ROLLED STEEL; ACID CORROSION; INHIBITION; HCL; TEMPERATURE; DISSOLUTION; ADSORPTION;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An attempt has been made towards the synthesis of strongly adherent orthophenylenediamine (OPD) coating on mild steel substrates, with an objective of using the OPD for corrosion protection of steel in hydrochloric acid medium. In this work, the OPD coatings were obtained by electrochemical reduction of orthonitroaniline (ONA) using dilute sulphuric acid as supporting electrolyte. The characterization of the coating was done by infrared spectroscopic and scanning electron microscopic studies. The non porous nature of the coating was determined by ferroxyl test. The performance of OPD as protective coating against corrosion of mild steel in aqueous hydrochloric acid was assessed by open circuit potential, potentiodynamic polarization, weight loss method. These studies revealed that the OPD coating on mild steel provide very good protection to mild steel against corrosion in hydrochloric acid environment.

引用

页码：134 / 143

页数：10

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