Corrosion control of a steel pipeline in aqueous chloride solutions by using CP technique
العناوين الأخرى
السيطرة على تأكل الأنابيب الفولاذية في محاليل كلوريدية باستخدام تقنية الحماية الكاثودية
المؤلفون المشاركون
al-Tamimi, Wathiq Isa Mahdi
al-Himdani, Fahim F.
Khidr, Abd al-Wahhab Hasan
المصدر
Engineering and Technology Journal
العدد
المجلد 24، العدد 8 (31 ديسمبر/كانون الأول 2005)، ص ص. 1076-1096، 21ص.
الناشر
تاريخ النشر
2005-12-31
دولة النشر
العراق
عدد الصفحات
21
التخصصات الرئيسية
الملخص EN
The aim of this work is to improve the corrosion resistance of the steel pipeline structures utilizing concrete coating by using the cathodic protection technique.
It deals with the matter of steel structures upon the survey periods, electrochemical dormant period because of the continuous cathodic preventation and the activation corrosion upon interruption" period of this cathodic preventation and treatment this case of corrosion by using the cathodic protection technique.
The initial free corrosion potential (Ecorr) upon intermittently intervals and corrosion rate measurement of the specimens by using full polarization curve (Tafel method) has been observed.
The required level of protection potential is achieved by using potentiostatic controlled potential.
The results indicate that the moisture progressive within each specimen has produced different potentials along the steelpipe.
Greater polarization has been associated with the submerged part of the specimen where the concrete coating resistance is at minimum.
Whereas the degree of polarization is directly proportional with the level of external voltage.
The results clearly indicated that to achieve efficient design of a cathodic protection, the protected area should be divided into discrete electrochemical areas ; these areas are depending on the electrical resistance and steel potential which prevent the over-protection in the low electrical resistance areas when applying the designing criteria on the high electrical resistance areas.
Furthermore, the results indicate that the absolute value of protection potential does not adequately to describe the electrochemical changes undergone by the polarized coated steelpipe.
The instant off potential value (Eiop) does not provide quantitative informations about the state of corrosion.
The mechanism of the polarization behavior of steelpipe structure in aqueous solution is a fundamental different because of the high resistance of concrete coating and the alkali environment in which becomes the dominance factor on the polarization trends.
Also, the results indicated that the relationship between the steelpipe potential and flowing current in calculated the electrical resistance of concrete coating is extremely important in account of the effect of environment in progressive or repulsion the corrosion processes.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Tamimi, Wathiq Isa Mahdi& al-Himdani, Fahim F.& Khidr, Abd al-Wahhab Hasan. 2005. Corrosion control of a steel pipeline in aqueous chloride solutions by using CP technique. Engineering and Technology Journal،Vol. 24, no. 8, pp.1076-1096.
https://search.emarefa.net/detail/BIM-293758
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Tamimi, Wathiq Isa Mahdi…[et al.]. Corrosion control of a steel pipeline in aqueous chloride solutions by using CP technique. Engineering and Technology Journal Vol. 24, no. 8 (2005), pp.1076-1096.
https://search.emarefa.net/detail/BIM-293758
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Tamimi, Wathiq Isa Mahdi& al-Himdani, Fahim F.& Khidr, Abd al-Wahhab Hasan. Corrosion control of a steel pipeline in aqueous chloride solutions by using CP technique. Engineering and Technology Journal. 2005. Vol. 24, no. 8, pp.1076-1096.
https://search.emarefa.net/detail/BIM-293758
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes appendices : p. 1086-1096
رقم السجل
BIM-293758
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر