Search In this Thesis
   Search In this Thesis  
العنوان
Study of Factors Affecting the Electrochemical Behaviour of Metals =
المؤلف
Abdel Gaber, Ashraf Moustafa.
هيئة الاعداد
باحث / اشرف مصطفى عبدالجابر
مشرف / جميل عوض
مناقش / سعد مسعود
مناقش / محمد على
الموضوع
Factor. Affecting. Chemical. Metal.
تاريخ النشر
1992.
عدد الصفحات
150 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الكيمياء
تاريخ الإجازة
1/1/1992
مكان الإجازة
جامعة الاسكندريه - كلية العلوم - Chemistry
الفهرس
Only 14 pages are availabe for public view

from 160

from 160

Abstract

Corrosion is an electrochemical reaction in which the metal itself is a reactant and is oxidized to a higher valency state metal dissolution whilst another reactant in solution is reduced to a lower valency state this may be regarded as a concise expression of the electrochemical mechanism of corrosion it follows from the electrochemical mechanism of corrosion that the rates of the anodic and cathodic reactions are independent and that either or both may control the rate of the corrosion reaction the hydrogen evolution and oxygen reduction reactions are the two most important cathodic processes in the corrosion of metals this is due to the fact hydrogen ions and water molecules are invariably present in aqueous solutions and since most aqeous solutions are in contact with the atmosphere dissolved oxygen molecules will normally be present.