Corrosion Assessment of Carbon Steel Fasteners Coated with Nickel-Cobalt Using Electrochemical Noise Technique

2019 ◽  
Vol 94 (1) ◽  
pp. 109-116
Author(s):  
Ricardo Galván-Martínez ◽  
Diana Nora Portilla-Osorio ◽  
Melchor Salazar-Martinez ◽  
Flavio Lagos-Galvan ◽  
Ricardo Orozco-Cruz
2013 ◽  
Vol 652-654 ◽  
pp. 1432-1435
Author(s):  
Qian Hu ◽  
Jing Liu ◽  
Jie Zhang ◽  
Feng Huang ◽  
Xing Peng Guo

The crevice corrosion behaviors of X52 carbon steel in two typical Cl--containing solutions were investigated by electrochemical noise and electrochemical impedance spectroscopy. Results show that oxygen concentration difference leads to the coupled current in NaCl + NaHCO3 solution while HAc concentration difference causes the coupled current in NaCl solution saturated with CO2 in the presence of HAc. There exists an apparent incubation stage during the crevice corrosion process of X52 carbon steel in the former. However, no obvious incubation period of crevice corrosion can be observed in the latter. Micrography shows that the crevice corrosion occurs indeed and the corrosion inside the crevice is not uniform.


2007 ◽  
Vol 54 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Mohammad Ghassem Mahjani ◽  
Jaber Neshati ◽  
Hashem Parvaneh Masiha ◽  
Majid Jafarian

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