Galvanic corrosion in marine environments: Effects associated with the inversion of polarity of Zn/carbon steel couples

2018 ◽  
Vol 70 (6) ◽  
pp. 950-961
Author(s):  
Philippe Refait ◽  
Marc Jeannin ◽  
Emilie François ◽  
René Sabot ◽  
Anne‐Marie Grolleau
Keyword(s):  
Carbon Steel ◽  
Galvanic Corrosion ◽  
Marine Environments

(Corrosion Division Morris Cohen Graduate Student Award Address) Galvanic Corrosion of Copper-Coated Carbon Steel for Used Nuclear Fuel Containers

2021 ◽  
Vol MA2021-02 (10) ◽  
pp. 579-579
Author(s):  
Thalia Standish ◽  
Lindsay Braithwaite ◽  
Dmitrij Zagidulin ◽  
Sridhar Ramamurthy ◽  
Peter Keech ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Nuclear Fuel ◽  
Graduate Student ◽  
Galvanic Corrosion ◽  
Used Nuclear Fuel ◽  
Coated Carbon ◽  
Student Award

Anaerobic Biodegradation of Alternative Fuels and Associated Biocorrosion of Carbon Steel in Marine Environments

2016 ◽  
Vol 50 (9) ◽  
pp. 4844-4853 ◽  
Author(s):  
Renxing Liang ◽  
Deniz F. Aktas ◽  
Egemen Aydin ◽  
Vincent Bonifay ◽  
Jan Sunner ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Alternative Fuels ◽  
Anaerobic Biodegradation ◽  
Marine Environments

Galvanic Corrosion of a Carbon Steel-Stainless Steel Couple in Sulfide Solutions

2011 ◽  
Vol 20 (9) ◽  
pp. 1631-1637 ◽  
Author(s):  
C. F. Dong ◽  
K. Xiao ◽  
X. G. Li ◽  
Y. F. Cheng
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Galvanic Corrosion

scholarly journals Study of the Fe(II-III) hydroxysalts transformation according to the pH and the concentration of the ions present

2018 ◽  
Vol 7 (5) ◽  
pp. 359-369
Author(s):  
Farida Termemil ◽  
Marwa Ahmed-Malek ◽  
Assia Bourouba ◽  
Mohamed-rida Benloucif
Keyword(s):  
Carbon Steel ◽  
Cathodic Protection ◽  
Iron Hydroxide ◽  
Green Rust ◽  
Corrosion Products ◽  
Water Molecules ◽  
Marine Environments ◽  
Sulphate Reducing Bacteria ◽  
Reducing Bacteria ◽  
Ordinary Steel

Sulphated green rust, GR (SO4 2- ), is one of the main corrosion products of carbon steel in marine environments. It is Fe (II)-Fe(III) hydroxylsalt in sheets, consisting of alternating layers of iron-hydroxide type Fe(OH)2 , loaded positively due to the presence of the cations Fe(III) and negative interlayers consisting of anions and water molecules. This compound is strongly associated with the metabolism of sulphate-reducing bacteria, and can also evolve under cathodic protection. Thus, recently, GR (CO3 2- ) has been detected in place of GR (SO4 2- ) on already corroded ordinary steel, newly subjected to cathodic protection. This presence is due to the pH and[SO4 2−] [HCO3 − ⁄ ] conditions imposed by the cathodic protection. In this paper, we chemically synthesize sulfated and carbonate green rust in a chlorinated medium; we then study their respective transformation according to the concentration [SO4 2- ] / [HCO3 - ] ratio and pH. Our results show that from a GR (SO4 2- ), GR (CO3 2- ) is formed from a pH ≥8.2 for [SO4 2- ] / [HCO3 - ] = 12 and without any change in pH for [SO4 2- ] / [HCO3 - ] <12. Whereas from GR (CO3 2- ), GR (SO4 2- ) is formed for [SO4 2- ] / [HCO3 - ] > 1 without any change in pH.

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