Temperature-field history dependence of the elastocaloric effect for a strain glass alloy

Deqing Xue ¹Ruihao Yuan ²Yuanchao Yang ²Jianbo Pang ²Yumei Zhou ²Xiangdong Ding ²Turab Lookman ³Xiaobing Ren ⁴Jun Sun ²Dezhen Xue²

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作者信息

1. State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China;School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China
2. State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China
3. AiMaterials Research,Santa Fe,New Mexico 87501,USA
4. Ferroic Physics Group,National Institute for Materials Science,Tsukuba 305-0047,Ibaraki,Japan
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Abstract

The singular change of the order parameter at the first order martensitic transformation(MT)tempera-ture restricts the caloric response to a narrow temperature range.Here the MT is tuned into a sluggish strain glass transition by defect doping and a large elastocaloric effect appears in a wide temperature range.Moreover,an inverse elastocaloric effect is observed in the strain glass alloy with history of zero-field cooling and is attributed to the slow dynamics of the nanodomains in response to the external stress.This study offers a design recipe to expand the temperature range for good elastocaloric effect.

Key words

Elastocaloric effect/Isothermal entropy change/Strain glass

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基金项目

National Key Re-search and Development Program of China(2017YFB0702401)

National Natural Science Foundation of China(51671157)

National Natural Science Foundation of China(51571156)

National Natural Science Foundation of China(51931004)

111 project 0(BP2018008)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量29

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