Crystallography of stress-induced martensitic transformation and giant elastocaloric effect in a &lt;001&gt;A textured Ni27Cu21Mn46Sn6 shape memory alloy

Yang, Jiajing; Wang, Honglin; Li, Zongbin; Zou, Naifu; Yan, Haile; Yang, Bo; Zuo, Liang

doi:10.1016/j.actamat.2023.119546

Cited by 15 publications

(2 citation statements)

References 64 publications

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“…It involves a thermal response in the form of isothermal entropy change (∆S iso ) or adiabatic temperature change (∆T Adia ) when a mechanical field is loaded or unloaded on a given material [3]. Shape memory alloys (SMAs), such as Ti-Ni based alloys [4,5], Cu-Zn-Al alloys [3], Ni-Mn based [6][7][8] and Ni-Fe based [9][10][11] Heusler alloys, are commonly used in elastocaloric refrigerants due to their large ∆T Adia (or ∆S iso ) during the stressinduced martensitic transitions. An important factor for the performance of eCE is their effective working temperature window, which is defined as the reversible temperature ranges (∆T rev ), within which the stress-induced martensitic transition of SMAs is fully recoverable.…”

Section: Introductionmentioning

confidence: 99%

Elastocaloric effect with plateau-shape adiabatic temperature change in Ni–Co–Fe–Ga strain glass alloy

Cheng,

Dong,

Wang

et al. 2024

J. Phys. D: Appl. Phys.

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Elastocaloric effect (eCE) is a very promising candidate for using in non-vapor compression refrigeration, which is highly efficient and eco-friendly. However, designing elastocaloric alloys with a wide reversible working temperature window at low stress is still challenging. In this work, the transition behaviors, microstructural evolutions and the eCE of a series of Ni55-xCoxFe19Ga27 alloys were systematically studied. The Ni44Co11Fe19Ga27 strain glass (STG) alloy exhibits a plateau-shape eCE, which show an average temperature change (ΔTAdia) of ~2.3 K covering a wide reversible working temperature range (ΔTrev) from 135 K to 200 K. The unique eCE behavior of STG stems from that the random distribution of local free energy of the martensite coupled with the small transition energy barriers, which leads to a wide transition-temperature range and decreased hysteresis. The Ni44Co11Fe19Ga27 strain glass alloy achieves a balance between the considerable ΔTAdia and wide ΔTrev, resulting in an optimal comprehensive elastocaloric performance and contributing to improving the efficiency of elastocaloric refrigeration.

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Section: Introductionmentioning

confidence: 99%

Elastocaloric effect with plateau-shape adiabatic temperature change in Ni–Co–Fe–Ga strain glass alloy

Cheng,

Dong,

Wang

et al. 2024

J. Phys. D: Appl. Phys.

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“…Recently, synergic multicaloric Heusler alloys, which undergo a martensitic transformation from paramagnetic austenite to ferromagnetic martensite, have been proposed to address issues related to transformation temperature ,,− For synergic materials, both magnetic field and uniaxial stress stabilize martensitic transformation, avoiding the above-mentioned disadvantages of nonsynergic materials. Research on synergic multicaloric materials is in its infancy and has been reported in only a few alloys.…”

Section: Introductionmentioning

confidence: 99%

Observation of an Extensive Curie Temperature Window and Synergic Multicaloric Effects in NiMnCuGaSn Alloys

Zhang,

Qian,

Cai

et al. 2024

ACS Appl. Electron. Mater.

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The study of multicaloric effects in Heusler alloys has attracted increasing research interest, fueled by their potential applications in solid-state refrigeration and energy conversion technologies. Despite the promising aspects, challenges such as the limited operating temperature range and large hysteresis have hindered the optimal device performance. Herein, by introducing a Cu/Sn co-substitution strategy, a Curie temperature window for synergic magnetostructural transformation is extended from 244 K to 313 K in the customized NiMnCuGaSn alloys, along with a substantial increase in transformation entropy change. Crucially, employing a combined approach of magnetic-field-stress loading and zero-field-stress unloading significantly reduces stress hysteresis and enhances the reversibility of the transformation, resulting in a significant adiabatic temperature change of 4.7 K at a relatively low critical stress. This approach underscores an efficient method to enhance caloric responses, paving the way for advances in cooling technologies.

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Large elastocaloric effect covering a broad temperature window in a composition-graded Ni50Mn31.5Ti18.5 alloy prepared by magnetic field-assisted directional solidification

Wang,

Li,

Hou

et al. 2024

Acta Materialia

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Crystallography of stress-induced martensitic transformation and giant elastocaloric effect in a <001>A textured Ni27Cu21Mn46Sn6 shape memory alloy

Cited by 15 publications

References 64 publications

Elastocaloric effect with plateau-shape adiabatic temperature change in Ni–Co–Fe–Ga strain glass alloy

Elastocaloric effect with plateau-shape adiabatic temperature change in Ni–Co–Fe–Ga strain glass alloy

Observation of an Extensive Curie Temperature Window and Synergic Multicaloric Effects in NiMnCuGaSn Alloys

Large elastocaloric effect covering a broad temperature window in a composition-graded Ni50Mn31.5Ti18.5 alloy prepared by magnetic field-assisted directional solidification

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