Burst-like superelasticity and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals

Dewei Zhao; Fei Xiao; Zhihua Nie; Daoyong Cong; Wen Sun; Jian Liu

doi:10.1016/j.scriptamat.2018.01.029

Burst-like superelasticity and elastocaloric effect in [011] oriented Ni₅₀Fe₁₉Ga₂₇Co₄ single crystals

Dewei Zhao, Fei Xiao, Zhihua Nie, Daoyong Cong, Wen Sun, Jian Liu^*

^*Corresponding author for this work

School of Material Science and Engineering

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

30 Citations (Scopus)

Abstract

We have investigated the superelastic behavior and elastocaloric effect in [011] oriented Ni₅₀Fe₁₉Ga₂₇Co₄ single crystals. The superelasticity is absent in a temperature gap of 60 K. At the critical temperature of 388 K, the stress oscillation and audible noise can be found during the superelastic deformation, indicating the occurrence of burst-like transformation. Such a burst character leads to a novel non-linear increase of martensitic transformation start stress with temperature, and an enhanced hysteresis loss. In addition, a large elastocaloric temperature window of 40 K and a maximum cooling effect of −6.1 K have been obtained.

Original language	English
Pages (from-to)	6-10
Number of pages	5
Journal	Scripta Materialia
Volume	149
DOIs	https://doi.org/10.1016/j.scriptamat.2018.01.029
Publication status	Published - May 2018

Keywords

Burst martensitic transformation
Elastocaloric effect
Superelasticity

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10.1016/j.scriptamat.2018.01.029

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title = "Burst-like superelasticity and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals",

abstract = "We have investigated the superelastic behavior and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals. The superelasticity is absent in a temperature gap of 60 K. At the critical temperature of 388 K, the stress oscillation and audible noise can be found during the superelastic deformation, indicating the occurrence of burst-like transformation. Such a burst character leads to a novel non-linear increase of martensitic transformation start stress with temperature, and an enhanced hysteresis loss. In addition, a large elastocaloric temperature window of 40 K and a maximum cooling effect of −6.1 K have been obtained.",

keywords = "Burst martensitic transformation, Elastocaloric effect, Superelasticity",

author = "Dewei Zhao and Fei Xiao and Zhihua Nie and Daoyong Cong and Wen Sun and Jian Liu",

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year = "2018",

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T1 - Burst-like superelasticity and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals

AU - Zhao, Dewei

AU - Xiao, Fei

AU - Nie, Zhihua

AU - Cong, Daoyong

AU - Sun, Wen

AU - Liu, Jian

PY - 2018/5

Y1 - 2018/5

N2 - We have investigated the superelastic behavior and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals. The superelasticity is absent in a temperature gap of 60 K. At the critical temperature of 388 K, the stress oscillation and audible noise can be found during the superelastic deformation, indicating the occurrence of burst-like transformation. Such a burst character leads to a novel non-linear increase of martensitic transformation start stress with temperature, and an enhanced hysteresis loss. In addition, a large elastocaloric temperature window of 40 K and a maximum cooling effect of −6.1 K have been obtained.

AB - We have investigated the superelastic behavior and elastocaloric effect in [011] oriented Ni50Fe19Ga27Co4 single crystals. The superelasticity is absent in a temperature gap of 60 K. At the critical temperature of 388 K, the stress oscillation and audible noise can be found during the superelastic deformation, indicating the occurrence of burst-like transformation. Such a burst character leads to a novel non-linear increase of martensitic transformation start stress with temperature, and an enhanced hysteresis loss. In addition, a large elastocaloric temperature window of 40 K and a maximum cooling effect of −6.1 K have been obtained.

KW - Burst martensitic transformation

KW - Elastocaloric effect

KW - Superelasticity

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DO - 10.1016/j.scriptamat.2018.01.029

M3 - Article

AN - SCOPUS:85041479325

SN - 1359-6462

VL - 149

SP - 6

EP - 10

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Burst-like superelasticity and elastocaloric effect in [011] oriented Ni₅₀Fe₁₉Ga₂₇Co₄ single crystals

Abstract

Keywords

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