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العنوان
Corrosion behavior of astm A106 GR.B carbon steel exposed to sodium sulfates solutions /
الناشر
Mohamed Mohamed Nabil Abdelmonem Mahmoud ,
المؤلف
Mohamed Mohamed Nabil Abdelmonem Mahmoud
هيئة الاعداد
باحث / Mohamed Mohamed Nabil Abdelmonem Mahmoud
مشرف / Saad Megahed Elragh
مشرف / Randa Ahmed Abdelkarim
مشرف / Randa Ahmed Abdelkarim
تاريخ النشر
2019
عدد الصفحات
73 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة (متفرقات)
تاريخ الإجازة
21/9/2019
مكان الإجازة
جامعة القاهرة - كلية الهندسة - Metallurgical Engineering
الفهرس
Only 14 pages are availabe for public view

from 92

from 92

Abstract

The purpose of this research is to identify the effect of various parameters (concentration, temperature and stirring speed of sodium sulfates) in testing electrolytes on corrosion behavior of ASTM A106 Gr.B carbon steel pipelines.The morphology and composition of the corrosion product deposits were determined using optical and scanning electron microscopy while EDAX analysis was used to determine the chemical composition of the corrosion products. Based on weight loss as well as potentiodynamic polarization measurements, the highest corrosion rate was detected for electrolytes containing 0.5 M Na2SO4.Temperature influence was significant on oxide layer density and stability, with the appearance of thick cracked layer as the temperature as well as the sulfate concentration increased. Increasing solution speed had a corrosive effect on metal surface as the highest corrosion rate was observed for the highest speed (1250 rpm)