Galvanic corrosion of carbon steel in anoxic conditions at 80 °C associated with a heterogeneous magnetite (Fe3O4)/mackinawite (FeS) layer

2017 ◽  
Vol 255 ◽  
pp. 274-285 ◽  
Author(s):  
M. Robineau ◽  
A. Romaine ◽  
R. Sabot ◽  
M. Jeannin ◽  
V. Deydier ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Galvanic Corrosion ◽  
Anoxic Conditions ◽  
Magnetite Fe3o4

(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

Effect of Thiosulfate on the SCC Behavior of Carbon Steel Welds Exposed to Concrete Pore Water Under Anoxic Conditions

MRS Advances ◽  
2018 ◽  
Vol 3 (19) ◽  
pp. 1019-1029 ◽  
Author(s):  
B. Kursten ◽  
S. Caes ◽  
R. Gaggiano
Keyword(s):  
Carbon Steel ◽  
Strain Rate ◽  
Pore Water ◽  
Water Solution ◽  
Weld Zone ◽  
Constant Strain Rate ◽  
Open Circuit ◽  
Spent Fuel ◽  
Anoxic Conditions ◽  
High Level

ABSTRACTThe Supercontainer (SC) is the reference concept for the post-conditioning of vitrified high-level nuclear waste and spent fuel in Belgium. It comprises a prefabricated concrete buffer that completely surrounds a carbon steel overpack. Welding is being considered as a final closure technique of the carbon steel overpack in order to ensure its water tightness. Welding is known to induce residual stresses near the weld zone, which may lead to an increased susceptibility to stress corrosion cracking (SCC). In this study, slow strain rate tests were conducted to study the SCC behavior of plain and welded P355 QL2 grade carbon steel exposed to an artificial concrete pore water solution that is representative of the SC concrete buffer environment. The tests were performed at 140°C, a constant strain rate of 5 × 10-7s-1and at open circuit potential under anoxic conditions. The effect of thiosulfate on the SCC behavior was investigated up to levels of 600 mg/L S2O32-.

scholarly journals A Field Study of Atmospheric Corrosion of Carbon Steel after Short Exposure in Pelabuhan Ratu, West Java Province, Indonesia

2021 ◽  
Vol 18 (17) ◽  
Author(s):  
Gadang PRIYOTOMO ◽  
Siska PRIFIHARNI ◽  
Lutviasari NURAINI ◽  
Joko TRIWARDONO ◽  
Ahmad ROYANI ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Relative Humidity ◽  
Air Temperature ◽  
Atmospheric Corrosion ◽  
Short Exposure ◽  
Corrosion Attack ◽  
West Java ◽  
Corrosion Rates ◽  
Magnetite Fe3o4 ◽  
Chloride Deposition

The investigation of atmospheric corrosion of mild carbon steel as representative of offshore infrastructure has been carried out in the marine tropical of Pelabuhan Ratu, West Java, Indonesia. They are exposed up to 76 days of periods, and their corrosion rates are determined according to ASTM G1-03. The surface morphology, the elemental compositions and compounds were observed using a scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD), respectively.  The environmental parameters of the test site are monitored during exposure, such as air temperature, relative humidity (RH), airborne salinity and dew temperature. Based on the results, the corrosion rates of steels were 2.79 and 2.8 mpy within the 27 and 76 days exposures, respectively. The presence of chloride deposition on the surface of steel can increase the severity of corrosion. Moreover, the detrimental effect of chloride was observed in rust product, which was covered by an oxygen element. The main phases of rust products present were magnetite (Fe3O4) and hematite (α-Fe2O3.H2O). Several cracks were observed in the rust layer, which tended to exfoliate and lose adherence and protectiveness from further corrosion attack. HIGHLIGHTS The presence of chloride deposition on the surface of steel can increase the severity of corrosion. The severity of corrosion attack mainly depends on the exposure time and some climatic parameters, such as relative humidity (RH), air temperature and chloride airborne. The uniform distribution of the chloride tends to increase the production of ferrous chloride in high RH condition and the aqueous layer deposited on carbon steel. There are two phases on corroded carbon steel such as hematite (α-Fe2O3.H2O) and Magnetite (Fe3O4) after exposure GRAPHICAL ABSTRACT

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
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