Document Details

Document Type : Article In Journal 
Document Title :
Influence of N-Heterocyclic Compounds on the Corrosion of Al-Si Alloy in Hydrochloric Acid- Effect of pH and Temperature
تأثيرمركبات النتروجين الحلقية غير المتجانسة على تآكل سبائك الألومنيوم – سليكون في حمض الهيدوكلوريك تأثيرقيمة pH ودرجة الحرارة
 
Subject : Scientific Research 
Document Language : English 
Abstract : Two N-heterocyclic compounds were tested as inhibitors for the corrosion of an Al-11% Si alloy in hydrochloric acid (HCl) solutions by polarization and chemical measurements. Results indicated that Compound (B), containing a quinolinium moiety, was more effective than Compound (A), which contained a pyridinium moiety. Acceleration of corrosion by Compound (B) was observed to occur at low concentrations of the compound and also in alkaline media. An increase in HCl concentration caused a decrease in the inhibition efficiency. The abrupt decrease in inhibition by Compound (B) at temperatures exceeding 50°C was attributed to reorientation of the molecules at higher temperatures. Values of the apparent activation energies of adsorption support the conclusion that Compound (B) was more efficient than Compound (A) in inhibiting the corrosion of the alloy. 
ISSN : 0010931202000041 
Journal Name : Corrosion - USA 
Volume : 58 
Issue Number : 3 
Publishing Year : 1421 AH
2001 AD 
Article Type : Article 
Added Date : Monday, July 23, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
أمينة أحمد مظهرMazhar, Ahmina AhmadInvestigatorDoctorate 
سناء طاهر عربArab, Sanaa TaherResearcherDoctoratedr.s.arab@hotmail.com
إحترام عبدالله نورNOOR, Ehteram Abd AlaResearcherDoctorateM7o7o7n@hotmail.com

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