稀土掺杂全过渡族Ni37Co13Mn35Ti15-xRx(R=Er,Dy)合金条带的马氏体相变及磁热效应

刘蒙; 陈含笑; 汪子涵; 申邦坡; 许磊; 张智硕; 胡秋波; 马胜灿

doi:10.19976/j.cnki.43-1448/TF.2026003

粉末冶金材料科学与工程 >

2026 , Vol. 31 >Issue 3: 283 - 296

DOI: https://doi.org/10.19976/j.cnki.43-1448/TF.2026003

工艺技术

稀土掺杂全过渡族Ni₃₇Co₁₃Mn₃₅Ti_15-_xR_x(R=Er,Dy)合金条带的马氏体相变及磁热效应

刘蒙 ,
陈含笑 ,
汪子涵 ,
申邦坡 ,
许磊 ,
张智硕 ,
胡秋波 ,
马胜灿

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1.江西理工大学稀土学院金属磁性材料及器件江西省重点实验室,赣州 341000;
2.国家稀土功能材料创新中心/国瑞科创稀土功能材料(赣州)有限公司,赣州 341000;
3.江西理工大学材料冶金化学学部材料科学与工程学院,赣州 341000;
4.洛阳理工学院数学与物理教学部,洛阳 471000

^*为共同一作

收稿日期: 2026-01-12

修回日期: 2026-03-07

网络出版日期: 2026-07-03

基金资助

国家自然科学基金资助项目(52561035,52461033); 河南省自然科学基金资助项目(242300420043); 江西理工大学2023年省级大学生创新创业训练计划项目(S2023104 07051); 金属磁性材料及器件江西省重点实验室资助项目(2024SSY05061)

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Martensitic transformation and magnetocaloric effect of rare earth-doped all-d-metal Ni₃₇Co₁₃Mn₃₅Ti_15-_xR_x (R=Er, Dy) alloy ribbons

LIU Meng ,
CHEN Hanxiao ,
WANG Zihan ,
SHEN Bangpo ,
XU Lei ,
ZHANG Zhishuo ,
HU Qiubo ,
MA Shengcan

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1. Jiangxi Provincial Key Laboratory of Magnetic Metallic Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology , Ganzhou 341000, China;
2. National Rare Earth Functional Material Innovation Center/Guorui Scientific Innovation Rare Earth Functional Materials Co., Ltd, Ganzhou 341000, China;
3. School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China;
4. Department of Mathematics and Physics, Luoyang Institute of Science and Technology, Luoyang 471000, China

Received date: 2026-01-12

Revised date: 2026-03-07

Online published: 2026-07-03

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摘要

在全球气候变暖与能源危机的双重挑战下,磁制冷技术应运而生。该技术利用磁热效应实现制冷,具备高效、节能、环境友好等优点,被认为是有可能替代当前气体压缩制冷技术的重要方案。在磁热材料中,Heusler型Ni-Mn基合金因具有可调的磁相变与可观的磁热效应而备受关注。本研究采用熔体快淬法制备Heusler合金Ni₃₇Co₁₃Mn₃₅Ti_15-_xR_x (x=0.3、0.5、0.7、1.0)条带,重点探究稀土Er与Dy掺杂对其马氏体相变行为与磁热性能的影响。结果表明：掺杂后,合金的马氏体相变温度(T_t)随稀土含量增加呈先升后降的趋势,从Ni₃₇Co₁₃Mn₃₅Ti₁₅的190 K (0.1 T)大幅升至室温以上,但在x=1.0时回落至室温附近。Dy掺杂样品的T_t整体高于Er掺杂样品。Ni₃₇Co₁₃Mn₃₅Ti_14.5Dy_0.5表现出最优的磁热性能,其最大磁熵变高于未掺杂样品,在0~5 T磁场变化下,可以达到15.31 J/(kg·K)。Ni₃₇Co₁₃Mn₃₅Ti₁₄Dy₁的磁熵变峰随磁场的增大快速往低温移动,获得最宽制冷温区。此外,在Ni₃₇Co₁₃Mn₃₅Ti_14.5Dy_0.5中可观察到清晰的板条状马氏体组织,这一结构特征为进一步理解其性能变化提供了重要依据。

关键词： Heusler型Ni-Mn基合金; 磁制冷技术; 磁热效应; Er掺杂; Dy掺杂

本文引用格式

刘蒙 , 陈含笑 , 汪子涵 , 申邦坡 , 许磊 , 张智硕 , 胡秋波 , 马胜灿 . 稀土掺杂全过渡族Ni₃₇Co₁₃Mn₃₅Ti_15-_xR_x(R=Er,Dy)合金条带的马氏体相变及磁热效应[J]. 粉末冶金材料科学与工程, 2026 , 31(3) : 283 -296 . DOI: 10.19976/j.cnki.43-1448/TF.2026003

Abstract

Amid the dual challenges of global warming and the energy crisis, magnetic refrigeration technology has emerged as a promising solution. Utilizing the magnetocaloric effect, this technology offers advantages such as high efficiency, energy conservation, and environmental friendliness, making it a potential alternative to conventional gas compression refrigeration. Among magnetocaloric materials, Heusler-type Ni-Mn-based alloys have attracted significant attention, primarily due to their tunable magnetic phase transitions and remarkable magnetocaloric effects. In this study, Heusler alloy Ni₃₇Co₁₃Mn₃₅Ti_15-_xR_x (x=0.3, 0.5, 0.7, 1.0) ribbons were prepared via the melt-spinning method, focusing on the effects of rare-earth Er and Dy doping on the martensitic transformation behavior and magnetocaloric properties. The results indicate that the martensitic transformation temperature (T_t) of the alloys initially increases and subsequently decreases with rising rare-earth content. Specifically, it rises significantly from 190 K (0.1 T) for the undoped Ni₃₇Co₁₃Mn₃₅Ti₁₅ to above room temperature, then declining back to the vicinity of room temperature at x=1.0. Overall, the T_t of Dy-doped samples are higher than those of Er-doped samples. Ni₃₇Co₁₃Mn₃₅Ti_14.5Dy_0.5 exhibits the optimal magnetocaloric performance, its maximum magnetic entropy change is superior to that of the undoped sample, reaching 15.31 J/(kg·K) under a magnetic field change of 0-5 T. For the Ni₃₇Co₁₃Mn₃₅Ti₁₄Dy₁, the peak of the magnetic entropy change shifts rapidly towards lower temperatures with increasing magnetic field, resulting in the widest refrigeration temperature window. Furthermore, clear lath-like martensitic microstructures are observed in Ni₃₇Co₁₃Mn₃₅Ti_14.5Dy_0.5, providing important structural evidence for understanding the variations in its properties.

Key words： Heusler-type Ni-Mn-based alloy; magnetic refrigeration technology; magnetocaloric effect; Er doping; Dy doping

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