What is it about?

Pure nanocrystalline metals are known to absorb irradiation induced point defects but loose this ability due to grain growth under continued irradiation. We have shown that this irradiation induced grain growth can be stopped by using thermally stable nanocrystalline alloy like nickel tungsten (NiW). We have proved this result by irradiating nanocrystalline NiW with high energy nickel ions and studying its grain growth using transmission electron microscopy.

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Why is it important?

We show that thermally stable nanocrystalline alloys are more resistant to irradiation than their pure nanocrystalline metal counterparts.

Perspectives

This paper is an important step in creating irradiation resistant materials.

Prince Singh
Carnegie Mellon University

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This page is a summary of: Grain growth stagnation and texture development in an irradiated thermally stabilized nanocrystalline alloy, Journal of Applied Physics, November 2019, American Institute of Physics,
DOI: 10.1063/1.5118943.
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