Short communication: 'Low activation, refractory, high entropy alloys for nuclear applications'

JOURNAL OF NUCLEAR MATERIALS

卷:526

Article

Kareer, A.¹  Waite, J. C.¹  Li, B.¹  Couet, A.²  Armstrong, D. E. J.¹  Wilkinson, A. J.¹ 

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

[2] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA

关键词: High entropy alloys;    Heavy ion irradiation;    Low activation;    Refractory;    Structural materials;   

DOI  :  10.1016/j.jnucmat.2019.151744

来源: Elsevier

【 摘 要 】

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. (C) 2019 The Authors. Published by Elsevier B.V.

【 授权许可】

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