Wide-temperature-range perfect superelasticity and giant elastocaloric effect in a high entropy alloy

Shaohui Li; Daoyong Cong; Xiaoming Sun; Yong Zhang; Zhen Chen; Zhihua Nie; Runguang Li; Fuqiang Li; Yang Ren; Yandong Wang

doi:10.1080/21663831.2019.1659436

Wide-temperature-range perfect superelasticity and giant elastocaloric effect in a high entropy alloy

Shaohui Li, Daoyong Cong^*, Xiaoming Sun, Yong Zhang, Zhen Chen, Zhihua Nie, Runguang Li, Fuqiang Li, Yang Ren, Yandong Wang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

The high entropy alloy concept offers unique opportunities for the design of advanced materials with unprecedented properties. However, hitherto most of the research efforts are focused on structural materials. Here, by employing the core effect of severe lattice distortion in high entropy alloys, a novel functional NiCuTiHf_0.6Zr_0.4 high entropy alloy exhibiting intriguing wide-temperature-range perfect superelasticity in a broad temperature range from 263 to 463 K and giant elastocaloric effect with the maximum adiabatic temperature change of 9.3 K is developed. This work opens the door for designing high-performance superelastic and elastocaloric functional materials with the high entropy alloy concept.

Original language	English
Pages (from-to)	482-489
Number of pages	8
Journal	Materials Research Letters
Volume	7
Issue number	12
DOIs	https://doi.org/10.1080/21663831.2019.1659436
Publication status	Published - 2019

Keywords

High entropy alloys
high-energy X-ray diffraction
lattice distortion
phase transformation
superelasticity

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10.1080/21663831.2019.1659436

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title = "Wide-temperature-range perfect superelasticity and giant elastocaloric effect in a high entropy alloy",

abstract = "The high entropy alloy concept offers unique opportunities for the design of advanced materials with unprecedented properties. However, hitherto most of the research efforts are focused on structural materials. Here, by employing the core effect of severe lattice distortion in high entropy alloys, a novel functional NiCuTiHf0.6Zr0.4 high entropy alloy exhibiting intriguing wide-temperature-range perfect superelasticity in a broad temperature range from 263 to 463 K and giant elastocaloric effect with the maximum adiabatic temperature change of 9.3 K is developed. This work opens the door for designing high-performance superelastic and elastocaloric functional materials with the high entropy alloy concept.",

keywords = "High entropy alloys, high-energy X-ray diffraction, lattice distortion, phase transformation, superelasticity",

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T1 - Wide-temperature-range perfect superelasticity and giant elastocaloric effect in a high entropy alloy

AU - Li, Shaohui

AU - Cong, Daoyong

AU - Sun, Xiaoming

AU - Zhang, Yong

AU - Chen, Zhen

AU - Nie, Zhihua

AU - Li, Runguang

AU - Li, Fuqiang

AU - Ren, Yang

AU - Wang, Yandong

PY - 2019

Y1 - 2019

N2 - The high entropy alloy concept offers unique opportunities for the design of advanced materials with unprecedented properties. However, hitherto most of the research efforts are focused on structural materials. Here, by employing the core effect of severe lattice distortion in high entropy alloys, a novel functional NiCuTiHf0.6Zr0.4 high entropy alloy exhibiting intriguing wide-temperature-range perfect superelasticity in a broad temperature range from 263 to 463 K and giant elastocaloric effect with the maximum adiabatic temperature change of 9.3 K is developed. This work opens the door for designing high-performance superelastic and elastocaloric functional materials with the high entropy alloy concept.

AB - The high entropy alloy concept offers unique opportunities for the design of advanced materials with unprecedented properties. However, hitherto most of the research efforts are focused on structural materials. Here, by employing the core effect of severe lattice distortion in high entropy alloys, a novel functional NiCuTiHf0.6Zr0.4 high entropy alloy exhibiting intriguing wide-temperature-range perfect superelasticity in a broad temperature range from 263 to 463 K and giant elastocaloric effect with the maximum adiabatic temperature change of 9.3 K is developed. This work opens the door for designing high-performance superelastic and elastocaloric functional materials with the high entropy alloy concept.

KW - High entropy alloys

KW - high-energy X-ray diffraction

KW - lattice distortion

KW - phase transformation

KW - superelasticity

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DO - 10.1080/21663831.2019.1659436

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SN - 2166-3831

VL - 7

SP - 482

EP - 489

JO - Materials Research Letters

JF - Materials Research Letters

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ER -

Wide-temperature-range perfect superelasticity and giant elastocaloric effect in a high entropy alloy

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