Excellent mechanical properties and large magnetocaloric effect of spark plasma sintered Ni-Mn-In-Co alloy  

作　　者：Jing Bai Die Liu Jianglong Gu Xinjun Jiang Xinzeng Liang Ziqi Guan Yudong Zhang Claude Esling Xiang Zhao Liang Zuo 

机构地区：[1]Key Laboratory for Anisotropy and Texture of Materials,Northeastern University,Shenyang 110819,China [2]School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China [3]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province,Qinhuangdao 066004,China [4]State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China [5]Laboratoire d'Etude des Microstructures et de Mecanique des Materiaux,LEM3,CNRS,UMR 7239,University o f Lorraine,Metz 57045,France

出　　处：《Journal of Materials Science & Technology》2021年第15期46-51,共6页材料科学技术（英文版）

基　　金：the National Natural Science Foundation of China(No.51771044);the Natural Science Foundation of Hebei Province(No.E2019501061);the Fundamental Research Funds for the Central Universities(No.N2023027);the Programme of Introducing Talents of Discipline Innovation to Universities 2.0(the 111 Project of China 2.0,No.BP0719037);the Liao Ning Revitalization Talents Program(No.XLYC1802023)。

摘　　要：The Ni43.75Mn37.5In12.5Co6.25 alloy was obtained by using the spark plasma sintering(SPS)technique.The martensitic transformation,magnetic and mechanical properties of the SPS alloy were investigated.Key findings demonstrate that the martensitic transformation temperature of this alloy is about 10 K lower than that of the as-cast one.Both SPS and as-cast alloys show a 7 layered modulated martensite(7M)at room temperature.The compressive fracture strength and strain of the SPS alloy increase by 176.92%and 33.33%compared with the as-cast alloy,achieving 1440 MPa and 14%,respectively.The maximum magnetic entropy change Smis 17.1 J kg^(-1)K^(-1)for the SPS alloy at the magnetic field of 5 T.

关 键 词：Spark plasma sintering Metamagnetic shape memory alloy Mechanical property Martensitic TRANSFORMATION Magnetocaloric effect 

分 类 号：TG139.6[一般工业技术—材料科学与工程]