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Hot consolidation and mechanical properties of nanocrystalline equiatomic AlFeTiCrZnCu high entropy alloy after mechanical alloying

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Abstract

The present study is aimed to investigate the consolidation behaviour and mechanical properties of nanocrystalline equiatomic AlFeTiCrZnCu high entropy alloy after mechanical alloying. The consolidation was achieved by cold pressing with conventional sintering, vacuum hot pressing and hot isostatic pressing techniques. The microstructure and mechanical properties were evaluated. The hardness and compressive strength of nanocrystalline equiatomic AlFeTiCrZnCu high entropy alloy after vacuum hot pressing are 9.50 and 2.19 GPa and those after hot isostatic pressing are 10.04 and 2.83 GPa, respectively. The wear resistance is found to be higher than the commercially used materials such as Ni-hard faced alloy.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, 600036, India

    S. Varalakshmi, M. Kamaraj & B. S. Murty

  2. Defence Metallurgical Research Laboratory (DMRL), Hyderabad, 500058, India

    G. Appa Rao

Authors
  1. S. Varalakshmi
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  2. G. Appa Rao
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  3. M. Kamaraj
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  4. B. S. Murty
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Correspondence to B. S. Murty.

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Varalakshmi, S., Appa Rao, G., Kamaraj, M. et al. Hot consolidation and mechanical properties of nanocrystalline equiatomic AlFeTiCrZnCu high entropy alloy after mechanical alloying. J Mater Sci 45, 5158–5163 (2010). https://doi.org/10.1007/s10853-010-4246-5

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  • DOI: https://doi.org/10.1007/s10853-010-4246-5

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