Synthesis and characterization of a new TiZrHfNbTaSn high-entropy alloy exhibiting superelastic behavior
Résumé
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 back-scattered 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 β phase and the α'' phase. A high strain recovery of 3.8% is obtained by tensile test, which is attributed to the <110>β{447}β recrystallization texture observed.
Domaines
Matériaux
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Gao_et al_2021_Synthesis and characterization of a new TiZrHfNbTaSn_accepted.pdf (1.34 Mo)
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Gao_et al_2021_Synthesis and characterization of a new TiZrHfNbTaSn_suppl data.pdf (288.38 Ko)
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