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Article Dans Une Revue Scripta Materialia Année : 2021

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.

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Matériaux
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Dates et versions

hal-03217042 , version 1 (22-06-2021)

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J.J. Gao, Philippe Castany, Thierry Gloriant. Synthesis and characterization of a new TiZrHfNbTaSn high-entropy alloy exhibiting superelastic behavior. Scripta Materialia, 2021, 198, pp.113824. ⟨10.1016/j.scriptamat.2021.113824⟩. ⟨hal-03217042⟩
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