Journal
SCRIPTA MATERIALIA
Volume 198, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2021.113824
Keywords
High-entropy alloy; Superelasticity; Texture; Martensitic transformation
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Funding
- China Scholarship Council (CSC) [2016-6329]
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In this study, a new single-phase high-entropy alloy was developed and investigated, showing superelastic behavior and a high strain recovery rate. These phenomena are attributed to reversible stress-induced martensitic transformation between different phases and specific recrystallization texture observed.
In this study, a new single-phase bcc Ti35Zr35Hf15Nb5Ta5Sn5 high-entropy alloy (HEA) was developed and investigated by means of cyclic tensile tests, transmission electron microscopy (TEM), electron backscattered diffraction (EBSD) and in situ synchrotron X-ray diffraction (SXRD). The alloy reveals a superelastic behavior due to the reversible stress-induced martensitic transformation that occurs between the beta phase and the alpha '' phase. A high strain recovery of 3.8% is obtained by tensile test, which is attributed to the <110>(beta){447}(beta) recrystallization texture observed. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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