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

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.

SUBMITTER: Suzudo T 

PROVIDER: S-EPMC5099857 | biostudies-other | 2016 Nov

REPOSITORIES: biostudies-other

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

Suzudo Tomoaki T   Hasegawa Akira A  

Scientific reports 20161108

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-  ...[more]