Document Details

Document Type : Article In Journal 
Document Title :
Effect of temperature on corrosion inhibition of iron base metallic glass alloy in neutral solutions
تأثير درجة الحرارة على تثبيط تأكل سبيكة الحديد زجاجية الخواص في المحاليل المتعادلة
 
Subject : Scientific Research 
Document Language : English 
Abstract : Electrochemical measurements have been used to study the influence of temperature on corrosion and inhibitive effects of 4-methylacetophenone thiosemicarbazone and 4-methoxy acetophenone thiosemicarbazone on the corrosion of Fe78B13Si9 metallic glass in 0.2 M Na2SO4 between 293 and 333K. A good agreement between the data obtained by polarization and impedance measurements was found. Arise in temperature associated with an increase in icorr and 1/Rct values and decrease in the inhibition efficiency suggest a physical adsorption model for the corrosion processes. The results show that these compounds almost inhibit the iron-based glassy alloy corrosion at elevated temperatures. The difference in the inhibition behavior of the two compounds is explained in terms of the difference in the electron densities on the centers of adsorption in the thiosemicarbazone molecules. Thermodynamic parameters, ∆Eapp, ∆H*and ∆S*, have been calculated and are discussed. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 21 
Issue Number : 11 
Publishing Year : 1425 AH
2005 AD 
Article Type : Article 
Added Date : Monday, July 23, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سناء طاهر عربArab, Sanaa TaherInvestigatorDoctoratedr.s.arab@hotmail.com
خديخة محمد عمرانEmran, Kadija MohammadResearcherDoctoratek_imran2000sa@yahoo.co.u

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