JOM

, Volume 67, Issue 10, pp 2340–2344 | Cite as

Irradiation Resistance in Al x CoCrFeNi High Entropy Alloys

Article
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Abstract

The irradiation behavior of Al x CoCrFeNi (x = 0.1, 0.75, and 1.5) high entropy alloys was studied under 3 MeV Au-ions irradiation. The microstructural change and volume swelling due to irradiation were investigated using transmission electron microscopy and atomic force microscopy. The results showed that, with increasing the Al contents, the phase crystal structures of the as-cast samples evolved from face-centered cubic (FCC), to FCC + body-centered cubic (BCC), and BCC and irradiation-induced volume swelling increased. All alloys showed exceptional structural stability when irradiated up to over 50 displacement per atom at 298 K, and the irradiation-induced volume swellings in Al x CoCrFeNi HEAs were significantly lower than conventional nuclear materials under similar irradiation dosages.

Keywords

High Entropy Alloy Irradiation Test CoCrFeNi Alloy Similar Irradiation Dosage Advanced Nuclear System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgements

The authors appreciate the financial support of the National High Technology Research and Development Program of China (No. 2009AA03Z113), the National Science Foundation of China (Nos. 51471025 and 51210105006), 111 Project (B07003), and the Program for Changjiang Scholars and the Innovative Research Team of the University. The authors acknowledge the helpful comments and review of the manuscript by Michael Gao.

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Copyright information

© The Minerals, Metals & Materials Society 2015

Authors and Affiliations

  • S. Q. Xia
    • 1
  • X. Yang
    • 1
    • 2
  • T. F. Yang
    • 3
  • S. Liu
    • 1
  • Y. Zhang
    • 1
  1. 1.State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijingChina
  2. 2.State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijingChina
  3. 3.State Key Laboratory of Nuclear Physics and Technology, Center for Applied Physics and TechnologyPeking UniversityBeijingChina

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