Change search
ReferencesLink to record
Permanent link

Direct link
Alexandrov Scientific-Research Technology Institute, Sosnovy Bor.ORCID iD: 0000-0001-7816-8442
Alexandrov Research Institute of Technologies (NITI).
A.P. Aleksandrov Research Institute of Technology.
A.P. Aleksandrov Research Institute of Technology.
Show others and affiliations
2010 (English)In: Nuclear Technology, ISSN 0029-5450, Vol. 170, no 1, 210-218 p.Article in journal (Refereed) Published
Abstract [en]

In case of in-vessel corium retention during a severe accident in a light water reactor, weakening of the vessel wall and deterioration of the vessel steel properties can be caused both by the melting of the steel and by its physicochemical interaction with corium. The interaction behavior has been studied in medium-scale experiments with prototypic corium. The experiments yielded data for the steel corrosion rate during interaction with UO2+x-ZrO2-FeOy melt in air and steam at different steel surface temperatures and heat fluxes from the corium to the steel. It has been observed that the corrosion rates in air and steam atmosphere are almost the same. Further, if the temperature at the interface increases beyond a certain level, corrosion intensifies. This is explained by the formation of liquid phases in the interaction zone. The available experimental data have been used to develop a correlation for the corrosion rate as afunction of temperature and heat flux.

Place, publisher, year, edition, pages
American Nuclear Society, 2010. Vol. 170, no 1, 210-218 p.
Keyword [en]
Zirconium oxide, Uranium dioxide, Heat flux, Meltdown, Corrosion, Nuclear reactor, Light water reactor, Accident, Pressurized water reactor
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-53474OAI: diva2:470129
QC 20120110Available from: 2011-12-28 Created: 2011-12-28 Last updated: 2012-01-21Bibliographically approved

Open Access in DiVA

No full text

Other links

Search in DiVA

By author/editor
Bechta, Sevostian
In the same journal
Nuclear Technology
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 50 hits
ReferencesLink to record
Permanent link

Direct link