Corrosion of iron in physically-constrained locations

Digby Donald Macdonald, Bruno Kursten, George R. Engelhardt

Research outputpeer-review

6 Scopus citations

Abstract

A model has been developed to calculate the impact of the porous, outer layer of the passive film on the corrosion rate of the carbon steel overpack and on the structural integrity of the concrete in the annulus of the super container of the Belgian High Level Nuclear Waste (HLNW) disposal concept. Because the corrosion product occupies 2 - 6.5 times the volume of the iron from which it forms the development of the outer layer in the confined space between the carbon steel overpack and the concrete will result in the compression of the outer layer and a concomitant decrease in the porosity. If the porosity decreases to a sufficiently low value, the growth of the outer layer ceases and further corrosion is prevented. If the thickness of the corroded layer exceeds a critical value, the concrete will crack, because of the poor strength of cementations materials under tensile loading.

Original languageEnglish
Title of host publicationCorrosion, Passivity, and Energy
Subtitle of host publicationA Symposium in Honor of Digby D. Macdonald
PublisherElectrochemical Society Inc.
Pages457-468
Number of pages12
Volume50
Edition31
ISBN (Print)9781607684190
DOIs
StatePublished - 2013
EventCorrosion, Passivity, and Energy: A Symposium in Honor of Digby D. Macdonald - PRiME 2012 - Honolulu, HI
Duration: 7 Oct 201212 Oct 2012

Publication series

NameECS Transactions
Number31
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceCorrosion, Passivity, and Energy: A Symposium in Honor of Digby D. Macdonald - PRiME 2012
Country/TerritoryUnited States
CityHonolulu, HI
Period2012-10-072012-10-12

ASJC Scopus subject areas

  • Engineering(all)

Cite this