Microstructure, strain rate, and temperature effects on the compressive loading behavior of (FeMnNiCo)1-xMox high entropy alloy

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Microstructure, strain rate, and temperature effects on the compressive loading behavior of (FeMnNiCo)1-xMox high entropy alloy

KRÜGER Lutz, CICHOCKI Kamil, HENSCHEL Sebastian, CHULIST Robert, BAŁA Piotr, MUSZKA Krzysztof

Abstract. High entropy alloys based on FeMnNiCoMo offer a potential for high energy absorption and high strength, even at low temperatures. In this work, the effects of chemical composition and grain size on the mechanical properties were investigated. Compression tests at a wide range of strain rates and temperatures have been performed. For a strain rate of about 102 s−1 an instrumented drop weight tower was applied. Furthermore, cryogenic temperature tests at −196 °C were carried out. The microstructure was analyzed by means of scanning electron microscopy and transmission Kikuchi diffraction. Hence, the role of grain size, precipitations, and twinning-induced plasticity (TWIP) on the yield strength and the further strain hardening were investigated.

Keywords
High Entropy Alloy, Strain Rate Effect, Temperature Effect, Compression Test, Strain Hardening, Microstructure, Twinning

Published online 9/15/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: KRÜGER Lutz, CICHOCKI Kamil, HENSCHEL Sebastian, CHULIST Robert, BAŁA Piotr, MUSZKA Krzysztof, Microstructure, strain rate, and temperature effects on the compressive loading behavior of (FeMnNiCo)1-xMox high entropy alloy, Materials Research Proceedings, Vol. 44, pp 402-410, 2024

DOI: https://doi.org/10.21741/9781644903254-44

The article was published as article 44 of the book Metal Forming 2024

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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