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Helium entrapment in a nanostructured ferritic alloy
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.ORCID iD: 0000-0002-8760-1137
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2011 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 65, no 8, 731-734 p.Article in journal (Refereed) Published
Abstract [en]

A nanostructured ferritic alloy was irradiated with He+ to simulate service in a nuclear reactor and to test the hypothesis that the surface of nanoclusters is a preferential nucleation site for He bubbles. Transmission electron microscopy and atom probe tomography showed direct evidence of He bubble nucleation on the surfaces of nanoclusters and Ti(N,C) precipitates, and along grain boundaries and dislocations, thereby demonstrating an alloy design approach to improve the radiation tolerance of structural steels in the extreme environments found in nuclear reactors.

Place, publisher, year, edition, pages
2011. Vol. 65, no 8, 731-734 p.
Keyword [en]
Helium irradiation, Radiation tolerance, Nanostructured ferritic alloys, Atom probe tomography, Transmission electron microscopy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-100961DOI: 10.1016/j.scriptamat.2011.07.024ISI: 000295109500021Scopus ID: 2-s2.0-80052261174OAI: oai:DiVA.org:kth-100961DiVA: diva2:546275
Note

QC 20120823

Available from: 2012-08-23 Created: 2012-08-22 Last updated: 2017-12-07Bibliographically approved

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Hallén, Anders

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