EFFECT OF NI AND CR CONTENTS ON CORROSION OF STEEL UNDER REACTOR CONDITIONS


41th Annual CNS-CNA Student Conference - 2017 June 05

Presented at:
41th Annual CNS-CNA Student Conference
2017 June 05
Location:
Niagara Falls, ON Canada
Session Title:
Student Posters, Wine-&-Cheese Reception

Authors:
J. Shin (Western University)
D. Guo (Western University)
D. Li (CANMET Materials)
C. Wren (Western University)
  

Abstract

The effect of Ni and Cr contents in steel on its corrosion behavior in presence of γ-radiation is being investigated. Albeit through different pathways, increase in both Ni and Cr content decreases the rate of material’s degradation. With increasing Ni content, the passivity of an oxide film increases due to the build-up of a thicker layer leading to a lower corrosion rate. In case of Cr, the higher content induces formation of highly protective FeCr2O4 layer in the early stage of corrosion and suppresses further oxidation.

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