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arXiv · 1909.00373

Low activation, refractory, high entropy alloys for nuclear applications

A Kareer·JC Waite·B Li·A Couet·DEJ Armstrong·AJ Wilkinson
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Abstract

Two new, low activation high entropy alloys (HEAs) TiVZrTa and TiVCrTa are studied for use as in-core, structural nuclear materials for in-core nuclear applications. Low-activation is a desirable property for nuclear reactors, in an attempt to reduce the amount of high level radioactive waste upon decommissioning, and for consideration in fusion applications.The alloy TiVNbTa is used as a starting composition to develop two new HEAs; TiVZrTa and TiVCrTa. The new alloys exhibit comparable indentation hardness and modulus, to the TiVNbTa alloy in the as-cast state. After heavy ion implantation the new alloys show an increased irradiation resistance.

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A Kareer, JC Waite, B Li, A Couet, DEJ Armstrong, AJ Wilkinson. 2019-09-01. Low activation, refractory, high entropy alloys for nuclear applications. https://doi.org/10.1016/j.jnucmat.2019.151744

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