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

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

96 Citations (Scopus)

47 Downloads (CityUHK Scholars)

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
Journal	Materials Research Letters
Volume	7
Issue number	12
Online published	27 Aug 2019
DOIs	https://doi.org/10.1080/21663831.2019.1659436
Publication status	Published - 2019
Externally published	Yes

Research Keywords

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

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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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",

author = "Shaohui Li and Daoyong Cong and Xiaoming Sun and Yong Zhang and Zhen Chen and Zhihua Nie and Runguang Li and Fuqiang Li and Yang Ren and Yandong Wang",

year = "2019",

doi = "10.1080/21663831.2019.1659436",

language = "English",

volume = "7",

pages = "482--489",

journal = "Materials Research Letters",

issn = "2166-3831",

publisher = "Taylor \& Francis",

number = "12",

}

TY - JOUR

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

UR - https://www.scopus.com/pages/publications/85071631277

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85071631277&origin=recordpage

U2 - 10.1080/21663831.2019.1659436

DO - 10.1080/21663831.2019.1659436

M3 - RGC 21 - Publication in refereed journal

SN - 2166-3831

VL - 7

SP - 482

EP - 489

JO - Materials Research Letters

JF - Materials Research Letters

IS - 12

ER -

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

Abstract

Research Keywords

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