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Spark Plasma Sintering of High Entropy Alloys

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Spark Plasma Sintering of Materials

Abstract

High Entropy Alloys (HEAs) are a fairly new class of alloys and, although there is still discussion concerning a definitive classification of what an HEA is, they are typically characterised as having five or more principal alloying elements each at a concentration of 5% or higher. HEAs are currently the focus of much research as they have the potential to deliver improved properties over more conventional alloys. Such properties usually include improved mechanical performance and enhanced high-temperature properties. However, achievement of better properties is very dependent on the processing routes used to produce HEA material. This contribution focusses on processing routes that exploit high –pressure, especially the Spark Plasma Sintering (SPS) method, and also a promising new subset of HEA materials, namely HEA composite alloys (HEACs). While this field is still at an early stage of development some trends are beginning to emerge.

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Acknowledgements

This work was partially supported by the Welsh Government and Higher Education Funding Council for Wales through the SĂªr Cymru National Research Network in Advanced Engineering and Materials and by the Materials Advanced Characterization Centre (MACH1) at Swansea University. The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.

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Authors and Affiliations

  1. College of Engineering, Swansea University, Wales, UK

    Sephira Riva, Stephen G. R. Brown & Nicholas P. Lavery

  2. Kennametal Manufacturing (UK) Ltd., Wales, UK

    Adam Tudball

  3. BAM Federal Institute aBAM Federal Institute of Materials Research and Testing, Berlin, Germany

    Kirill V. Yusenko

  4. Institute of Solid State Chemistry, Ekaterinburg, Russia

    Kirill V. Yusenko

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  1. Sephira Riva
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  2. Stephen G. R. Brown
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  3. Nicholas P. Lavery
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  4. Adam Tudball
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  5. Kirill V. Yusenko
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Correspondence to Kirill V. Yusenko .

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  1. Department of Innovation Engineering, University of Salento, Lecce, Italy

    Pasquale Cavaliere

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Riva, S., Brown, S.G.R., Lavery, N.P., Tudball, A., Yusenko, K.V. (2019). Spark Plasma Sintering of High Entropy Alloys. In: Cavaliere, P. (eds) Spark Plasma Sintering of Materials. Springer, Cham. https://doi.org/10.1007/978-3-030-05327-7_18

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