Influence of Electromagnetic Treatment on Corrosion Behavior of Carbon Steel and 316L Stainless Steel in Simulated Cooling Water

Abstract: The effect of electromagnetic treatment on corrosion behavior of carbon steel and stainless steel in simulated cooling water was investigated by electrochemical impedance spectroscopy, potentiodynamic polarization techniques and water analysis. It was found that the charge transfer resistance decreased and the corrosion current density increased after electromagnetic treatment for carbon steel electrode, which shows that such treatment promotes corrosion of carbon steel in simulated cooling water. In contrast, the pitting potential of 316L stainless steel electrode rose which revealed that electromagnetic treatment of the experimental water exhibited corrosion inhibition to 316L stainless steel. Reasons for different corrosion behavior of the two metals were discussed.

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Effect of Temperature and Grain Size on the Corrosion Behavior of 316L Stainless Steel in Seawater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.299-300.175 ◽

2011 ◽

Vol 299-300 ◽

pp. 175-178 ◽

Cited By ~ 1

Author(s):

Sen Sen Xin ◽

Jian Xu ◽

Feng Jun Lang ◽

Mou Cheng Li

Keyword(s):

Grain Size ◽

Stainless Steel ◽

Corrosion Behavior ◽

316L Stainless Steel ◽

Seawater Temperature ◽

Effect Of Temperature ◽

Coarse Grain ◽

Pitting Potential ◽

Fine Grain ◽

Different Grain Size

The corrosion behavior of 316L stainless steel was investigated in seawater at different temperature by using cyclic anodic polarization. The results indicated that two 316L specimens with different grain size showed similar pitting potential at 25°C. The increase of seawater temperature led to the linear decrease of pitting potential and repassivation potential. Because the pitting resistance of fine grain steel reduced larger than that of coarse grain steel with increasing temperature, the latter had a higher pitting potential about 60 mV at 85°C. Compared with the coarse grain steel, the fine grain steel showed a longer induction time for pitting at 65°C.

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Comparison of the Corrosion Behavior of Carbon Steel and Type 316L Stainless Steel under Nuclear Reactor Coolant Circuit Conditions

ECS Meeting Abstracts ◽

10.1149/ma2012-01/15/656 ◽

2012 ◽

Keyword(s):

Stainless Steel ◽

Carbon Steel ◽

Corrosion Behavior ◽

316L Stainless Steel ◽

Nuclear Reactor ◽

Coolant Circuit ◽

Reactor Coolant ◽

Type 316L ◽

Type 316L Stainless Steel

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Reduction of Langelier index of cooling water by electrolytic treatment with stainless steel electrode

Water SA ◽

10.4314/wsa.v38i5.24 ◽

2012 ◽

Vol 38 (5) ◽

Cited By ~ 1

Author(s):

R Rungvavmanee ◽

C Phalakornkule

Keyword(s):

Stainless Steel ◽

Cooling Water ◽

Stainless Steel Electrode ◽

Steel Electrode ◽

Electrolytic Treatment

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Study on Corrosion Inhibition of Glutaraldehyde for 304 Stainless Steel in Simulated Cooling Water Containing Sulfate-Reducing Bacteria

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.785-786.38 ◽

2013 ◽

Vol 785-786 ◽

pp. 38-41

Author(s):

Wei Wei Lin ◽

Hong Hua Ge ◽

Li Zhao ◽

Xue Juan Wang

Keyword(s):

Stainless Steel ◽

Electrochemical Impedance ◽

Cooling Water ◽

Sulfate Reducing Bacteria ◽

304 Stainless Steel ◽

Stainless Steel Electrode ◽

Steel Electrode ◽

Sulfate Reducing ◽

Passive Current ◽

Reducing Bacteria

Corrosion control of glutaraldehyde biocide for 304 stainless steel in simulated cooling water system containing sulfate-reducing bacteria (SRB) was studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The results revealed that impedance values of stainless steel electrode increased gradually while the passive current densities decreased with the increasing concentration of glutaraldehyde. The biocide improved good anti-corrosion performance to stainless steel in bacteria system. The impedance value |Z|0.05 increased from 19.72 kΩ·cm2 to 33.77 kΩ·cm2, and the passive current density reduced from 0.93 μA·cm-2 to 0.16 μA·cm-2 when the glutaraldehyde concentration reached 80 mg/L.

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