首页|Manipulation of magnetocaloric and elastocaloric effects in Ni-Mn-In alloys by lattice volume and magnetic variation:Effect of Co and Fe co-doping

Manipulation of magnetocaloric and elastocaloric effects in Ni-Mn-In alloys by lattice volume and magnetic variation:Effect of Co and Fe co-doping

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The effects of Co and Fe co-doping Ni-Mn-In alloy on the phase stability,lattice parameters,mag-netic properties,and electronic structures are systematically investigated by using the first-principles calculations.Results indicate that Fe atoms replace the excess Mn2 atoms by direct and indirect coex-istence(Fe→Mn2 and Fe→In→Mn2);Co substitutes the Ni atoms by direct substitution(Co→Ni)for the Ni-Mn-In alloy.The austenites all exhibit the ferromagnetic(FM)state for the studied composi-tions.The NM martensites are in the ferrimagnetic(FIM-1)state for the Ni2Mn1.5In0.5,Ni2Mn1.25In0.5Fe0.25,Ni1.75Mn1.5In0.5Co0.25,and Ni1.75Mn1.25In0.5Co0.25Fe0.25 alloys,while the other compositions are in the FM state.The phase stability of austenite and martensite decreases with increasing Co and Fe co-doping.A magnetic-structural coupling transition occurs at x＜0.25 and y＜0.25.The Ni1.91Mn1.5In0.5Co0.08 and Ni1.91Mn1.42In0.5Co0.08Fe0.08 alloys exhibit an A→6M→NM transformation,accompanied by a magnetic transition.When Co and Fe are co-doped,the hybridization strength between Co and Fe is greater than that between Co/Fe and Mn.The enhancement of magnetocaloric and elastocaloric effects is favored by larger magnetization difference(ΔM)and lattice volume change(ΔV/V0).Based on the calculated phase stability,magneto-structure coupling,ΔV/V0 and c/a ratio,one can predict that the Ni2-xMn1.5-yIn0.5CoxFey alloy with Co content 0 ≤ x ≤ 0.25 and Fe content 0 ≤ y ≤ 0.05 is predicted to have good magneto-controlled functional behavior.

Ni-Mn-In-Co-FePhase stabilityMagnetocaloric effectElastocaloric effect

Xinzeng Liang、Chi Zhang、Jing Bai、Jianglong Gu、Yudong Zhang、Claude Esling、Xiang Zhao、Liang Zuo

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School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China

Key Laboratory for Anisotropy and Texture of Materials,Northeastern University,Shenyang 110819,China

School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China

State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

Laboratoire d'Étude des Microstructures et de Mécanique des Matériaux,LEM3 CNRS,UMR 7239,University of Lorraine,57045 Metz,France

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National Natural Science Foundation of ChinaNatural Science Foundation of Hebei ProvinceFundamental Research Funds for the Central UniversitiesProgramme of Introducing Talents of Discipline Innovation to Universities 2.0(the 111 Project of China 2.0,)LiaoNing Revitalization Talents Program

51771044E2019501061N2023027BP0719037XLYC1802023

2024

10.1016/j.jmst.2023.06.044

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)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.172(5)
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