Galvanic corrosion of carbon steel -stainless steel couple in sulfuric acid under flow conditions
Other Title(s)
التآكل الكلفاني للحديد الكاربوني و الحديد المقاوم للصدأ في حامض الكبريتيك تحت تاثير الجريان
Joint Authors
Hasan, Basim Ubayd
Husayn, Samar Sadi
al-Habubi, Nusayr Abbud
Source
Issue
Vol. 22, Issue 8 (31 Aug. 2016), pp.158-174, 17 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2016-08-31
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Abstract EN
Galvanic corrosion of stainless steel 316 (SS316) and carbon steel (CS) coupled in 5% wt/v sulfuric acid solution at agitation velocity was investigated.
The galvanic behavior of coupled metals was also studies using zero resistance ammeter (ZRA) method.
The effects of agitation velocity, temperature, and time on galvanic corrosion current and loss in weight of both metals in both free corrosion and galvanic corrosion were investigated.
The trends of open circuit potential (OCP) of each metal and galvanic potential (Eg) of the couple were, also, determined.
Results showed that SS316 was cathodic relative to CS in galvanic couple and its OCP was much more positive than that of CS for all investigated ranges of operating conditions.
A sharp increase in galvanic current from CS to SS316 in the first 20 min and then decrease with time.
Increasing the agitation velocity led to increase in galvanic corrosion rate.
The decrease in galvanic current is attributed to metal passivation due to the formation of a protective film which grows with time.
The minus sign in galvanic current means that the current is flow from CS (anode) to SS316 (Cathode).
The galvanic current of CS-SS316 couple shifts to the negative direction with increase agitation velocity.
American Psychological Association (APA)
Hasan, Basim Ubayd& al-Habubi, Nusayr Abbud& Husayn, Samar Sadi. 2016. Galvanic corrosion of carbon steel -stainless steel couple in sulfuric acid under flow conditions. Journal of Engineering،Vol. 22, no. 8, pp.158-174.
https://search.emarefa.net/detail/BIM-708537
Modern Language Association (MLA)
Hasan, Basim Ubayd…[et al.]. Galvanic corrosion of carbon steel -stainless steel couple in sulfuric acid under flow conditions. Journal of Engineering Vol. 22, no. 8 (Aug. 2016), pp.158-174.
https://search.emarefa.net/detail/BIM-708537
American Medical Association (AMA)
Hasan, Basim Ubayd& al-Habubi, Nusayr Abbud& Husayn, Samar Sadi. Galvanic corrosion of carbon steel -stainless steel couple in sulfuric acid under flow conditions. Journal of Engineering. 2016. Vol. 22, no. 8, pp.158-174.
https://search.emarefa.net/detail/BIM-708537
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 167-174
Record ID
BIM-708537