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.
@article{arxiv.1909.00373,
title = {Low activation, refractory, high entropy alloys for nuclear applications},
author = {A Kareer and JC Waite and B Li and A Couet and DEJ Armstrong and AJ Wilkinson},
journal= {arXiv preprint arXiv:1909.00373},
year = {2019}
}