Corrosion Inhibition of Leucaena Leucocephala Pod on Mild Steel in Sulphuric Acid Solution

被引：18
|
作者：
Muthukrishnan, P. [1 ]
Jeyaprabha, B. [2 ]
Prakash, P. [1 ]
机构：
[1] Thiagarajar Coll, Dept Chem, Madurai 625009, Tamil Nadu, India
[2] Fatima Michael Coll Engn & Technol, Dept Civil Engn, Madurai 625020, Tamil Nadu, India
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2013年 / 26卷 / 04期
关键词：
Mild steel; Polarization; SEM; Acid corrosion; XRD; LOW-CARBON STEEL; PLANT-EXTRACT; ADSORPTION; COPPER; POLARIZATION; DERIVATIVES; VANILLIN; LEAVES; H2SO4; OIL;
D O I：
10.1007/s40195-013-0082-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The corrosion of the mild steel in 1 mol/L H2SO4 was investigated using Leucaena leucocephala pod extract (LLPE) as corrosion inhibitor by weight loss and electrochemical techniques. Inhibition efficiency of 95% was achieved with 500x10(-6) of LLPE at 308 K. The polarization studies showed that LLPE acted as mixed type inhibitor. The adsorption of the studied inhibitor on mild steel obeyed Langmuir adsorption isotherm. Protective film formation against acid attack was confirmed by FT-IR, XRD and SEM techniques.
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页码：416 / 424
页数：9
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