Radiation-induced segregation in dilute Re-W solid solutions

TL;DR

This paper explains the phenomenon of radiation-induced segregation of rhenium in dilute tungsten-rhenium alloys using ab initio calculations, providing a theoretical understanding of an unusual alloy behavior under irradiation.

Contribution

It offers the first theoretical explanation for radiation-induced Re segregation in dilute W-Re alloys through ab initio methods.

Findings

Re segregation occurs under irradiation in dilute W-Re alloys.

Ab initio calculations reveal the atomic mechanisms driving segregation.

The study provides a theoretical basis for understanding irradiation effects in dilute alloys.

Abstract

The occurrence of segregation in highly dilute alloys under irradiation is an unusual phenomenon that has so far eluded theoretical explanation. Using ab initio calculations, we are able to explain the origin of radiation-induced rhenium segregation in dilute tungsten-rhenium alloys.