Los Alamos National Labs with logo 2021

Outstanding Radiation Resistance of Tungsten-based High Entropy Alloys

A new tungsten-based alloy can withstand unprecedented amounts of radiation without damage.

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Shows the side view of reconstruction with 25 at % Cr isocomposition surface showing Cr-V rich precipitates inside grains and the top down view is shown in (n).

Shows the side view of reconstruction with 25 at % Cr iso-composition surface showing Cr-V rich precipitates inside grains and the top down view is shown in (n).

A body-centered cubic W-based refractory high entropy alloy with outstanding radiation resistance has been developed.

Essential for extreme irradiation environments such as the interiors of magnetic fusion reactors, previously explored materials have thus far been hobbled by weakness against fracture, but this new alloy seems to defeat that problem.

Summary of full paper (pdf)