Corrosion Resistance of API5L X52 Carbon Steel in Sulfide Polluted Environments

作     者：Randa Abdel-Karim Mohamed Ali Farag Hafiz Abdel-Azim Ahmed Saad El-Raghy Randa Abdel-Karim;Mohamed Ali Farag;Hafiz Abdel-Azim Ahmed;Saad El-Raghy

作者机构：Department of Metallurgy Faculty of Engineering Cairo University Giza Egypt 

出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)

年 卷 期：2016年第7卷第1期

页      面：39-50页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Carbon Steel Sulfides Weight Loss Anodic Dissolution Polarization 

摘      要：In the present work, the corrosion behavior of base and welded API5L X-52 carbon steel coupons in synthetic ground water solution NS-4 was studied. Subsequently, the morphology and composition of the corrosion product deposits were determined using scanning electron microscopy (SEM). Based on weight loss as well as Tafel’s measurements, increasing the sulfide ions content above 0.4 mM, had an inhibition effect on the corrosion behavior of carbon steel. According to EDAX analyses, increasing of sulfide concentration from 0.4 to 4 mM Na2S, the Fe/S ratio decreased from 12.02 at 0.4 mM to 2.6 at 4 mM Na2S.