الفهرس 
Chapter I: Introduction
Aim of the WorkOnly 14 pages are availabe for public view
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Abstract
The thesis deals with historical background, corrosion definitions, corrosion theory, causes of corrosion, type of carbon steel and its alloys also some of application of low carbon steel, forms of corrosion, methods of the corrosion control, types of inhibitors, types of protection, characteristic features of the surfactants, classification of the surfactant and literature survey on carbon steel corrosion and its alloys in the aqueous solutions. The chemical composition of the investigated compounds, preparation of the hydrochloric acid solutions, the investigated surfactant solutions and procedures used for the corrosion measurements such as chemical measurements, electrochemical techniques and surface analysis techniques by using some new surfactants to protection of low carbon steel from corrosion. The effect of temperature on the corrosion inhibition of LCS in1.0M HCl was determined over the temperature range 25-450C using weight loss measurements. The inhibition efficiency increases with increase in the temperature and the concentration of these surfactants, indicating that the inhibition occurs through chemical adsorption for these surfactants on LCS surface. The effect of surfactants on the cathodic and anodic polarization of LCS in 1.0M HCl was investigated to show that these compounds are mixed types. The results obtained from (EIS) show that the corrosion reactions in the absence and presence of these compounds precede under charge transfer control. The weight loss, polarization, electrochemical impedance spectroscopy (EIS) and EFM measurements support the assumption that corrosion inhibition primarily takes place through adsorption of the inhibitors on the LCS surface. The agreement among these different independent techniques indicates that the validity of the obtained results. Key words: Low carbon steel, Hydrochloric acid, Surfactant, chemical adsorption, EIS.