Influence of wormin mebendazole on the corrosion of mild steel in 1.0M sulphuric acid

被引：7

作者：

Edoziuno, F. O. ^{[1
]}

Adediran, A. A. ^{[2
,3
]}

Odoni, B. U. ^{[1
]}

Nwaeju, C. C. ^{[4
]}

Adesina, O. S. ^{[2
,3
]}

Oki, M. ^{[2
,3
]}

机构：

[1] Delta State Polytech, Dept Met Engn, PMB 1030, Ogwashi Uku, Nigeria

[2] Landmark Univ, Dept Mech Engn, PMB 1001, Omu Aran 1001, Kwara State, Nigeria

[3] Landmark Univ, SDGs Res Grp 9, Ind Innovat & Infrastruct, Omu Aran, Kwara State, Nigeria

[4] Nigerian Maritime Univ, Dept Mech Engn, Okerenkoko, Delta State, Nigeria

来源：

RESULTS IN ENGINEERING | 2021年 / 9卷

关键词：

Potentiodynamic polarization; Mild steel; Wormin mebendazole; Pitting corrosion; INHIBITION; BENZIMIDAZOLE; ADSORPTION; IODIDE; PERFORMANCE; DERIVATIVES; MEDIA;

D O I：

10.1016/j.rineng.2020.100192

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This investigation described the inhibitive influence of Mebendazole (MBZ) on mild steel corrosion in 1M sulphuric acid. Potentiodynamic polarization and scanning electron microscopy techniques were employed. Mebendazole effectively protected mild steel in H2SO4 at 298K and 333K with maximum inhibition efficiencies of 98.02% and 99.53% respectively. The adsorption of the inhibitor on the surface of mild steel followed the mixed mode physical adsorption of Langmuir adsorption model. The corrosion rate of specimens decreased from about 47.467 mm/yr for the blank specimen to about 1.7968 mm/yr for the specimen immersed in 1M sulphuric acid containing 2.5 g/l of MBZ at 298K. However, at 333K the corrosion rates were respectively 1455 mm/yr and 6.7854 mm/yr. Scanning electron microscopy revealed that the addition of Mebendazole to the corroding system sustained a surface morphology relatively devoid of pits on the test specimens at 5 days of immersion in 2.5 g/l of inhibitor in 1M sulphuric acid.

引用

页数：6

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