Suppression of radiation-induced point defects by rhenium and osmium interstitials in tungsten.

Author(s) Suzudo, T.; Hasegawa, A.
Journal Sci Rep
Date Published 2016 Nov 08
Abstract

Modeling the evolution of radiation-induced defects is important for finding radiation-resistant materials, which would be greatly appreciated in nuclear applications. We apply the density functional theory combined with comprehensive analyses of massive experimental database to indicate a mechanism to mitigate the effect of radiation on W crystals by adding particular solute elements that change the migration property of interstitials. The resultant mechanism is applicable to any body-centered-cubic (BCC) metals whose self-interstitial atoms become a stable crowdion and is expected to provide a general guideline for computational design of radiation-resistant alloys in the field of nuclear applications.

DOI 10.1038/srep36738
ISSN 2045-2322
Citation Suzudo T, Hasegawa A. Suppression of radiation-induced point defects by rhenium and osmium interstitials in tungsten. Sci Rep. 2016;6:36738.