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Title: Effect of tritium on corrosion behavior of chromium in 0.01 N sulfuric acid solution

The effects of tritium on the corrosion behavior of chromium in 0.01 N sulfuric solution have been investigated in the present study. Electrochemical experiments have been carried our for pure chromium. At first, the concentration dependence of sulfuric acid solution on anodic polarization behavior of chromium was experimented, resulting in that 0.01 N one was found appropriate. The dependence of both dissolved oxygen and tritium concentration on anodic behavior of chromium were performed. It was found from that the self-passivation of chromium induced by dissolved oxygen was inhibited in tritiated solution resulting in the enhancement of the corrosion. As a consequence it is highly likely that the elution of chromium by highly oxidative radiolysis products would explain the passivation inhibitory effect of SUS304 stainless steel observed in tritiated solutions.
Authors:
; ;  [1]
  1. Tritium Technology Group, JAEA, Obushi, Rokkasho-mura (Japan)
Publication Date:
OSTI Identifier:
22429756
Resource Type:
Journal Article
Resource Relation:
Journal Name: Fusion Science and Technology; Journal Volume: 67; Journal Issue: 3; Conference: TRITIUM 2013: 10. International Conference on Tritium Science and Technology, Nice Acropolis (France), 21-25 Oct 2013; Other Information: Country of input: France; 9 refs.
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHROMIUM; CORROSION; DISSOLVED GASES; ELECTROCHEMISTRY; OXYGEN; PASSIVATION; RADIOLYSIS; SOLUTIONS; STAINLESS STEEL-304; SULFURIC ACID; TRITIUM