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Diffusion of 3D-migrating self-interstitial clusters in diluted and concentrated Fe-Cr alloys
Département MMC, EDF-R and D, Les Renardieres, France.ORCID iD: 0000-0002-2381-3309
2009 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 386-88, no C, 140-142 p.Article in journal (Refereed) Published
Abstract [en]

We show, using atomic-level simulations, that the mobility of small 3D-migrating self-interstitial atom (SIA) clusters produced in displacement cascades is significantly reduced in concentrated Fe-Cr alloys (up to 15%Cr) as compared to Fe. The presence of alpha' precipitates, on the other hand, is only expected to provide scattering centers for interstitial-type defects, whose formation inside the precipitates is energetically unfavorable. The significant reduction in the mobility of 3D-migrating SIA clusters is expected to have an important impact on the microstructure evolution of high-Cr steels, depending on Cr concentration.

Place, publisher, year, edition, pages
2009. Vol. 386-88, no C, 140-142 p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-62832DOI: 10.1016/j.jnucmat.2008.12.076ISI: 000266386900037OAI: diva2:481237
QC 20120124. 13th International Conference on Fusion Reactor Materials (ICFRM-13), Nice, FRANCE, DEC 10-14, 2007Available from: 2012-01-20 Created: 2012-01-20 Last updated: 2012-01-24Bibliographically approved

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Olsson, Pär
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