Effect of Water Radiolysis on Corrosion: Steel, Cobalt and Nickel Alloys
34th Annual CNS Conference - 2013 June 09-12


Presented at:
34th Annual CNS Conference
2013 June 09-12
Location:
Toronto, Canada
Session Title:
Chemistry & Materials

Authors:
A.Y Musa (Western University)
M Behazin (Western University)
Q Knapp (Western University)
D Mizzi (Western University)
J.C Wren (Western University)
  

Abstract

Steel, cobalt and nickel alloys are used in the coolant system (or primary heat transport system) of a nuclear power plant.  To understand the effect of γ-radiation on the corrosion mechanism of these alloys, a combination of electrochemical measurements and surface analyses as a function of the water chemistry, with and without γ-radiation present, were performed.  Results to date have shown that γ-radiation has a major impact on the corrosion process by changing the corrosion potential in a system.  This determines the nature of the oxide phase (chemical state and morphology) that forms on a corroding alloy surface. 

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