Journal of Changshu Institute of Technology2025，Vol.39Issue(2)：17-20,70,5.
Mn50-xCuxNi40Sn10合金的相变和磁热效应研究
A Study of Phase Transitions and Magnetocaloric Effects in Mn50-xCuxNi40Sn10 Alloys
摘要
Abstract
This study investigates the influence of partially substituting Mn with Cu on the crystal structure,phase transitions,and magnetic entropy change in high-Mn-content Mn50-xCuxNi40Sn10 alloys.The results indicate that the martensitic transformation temperature increases progressively with higher Cu content,which can be attributed to the rise in valence electron concentration.Moreover,the doping of Cu significantly sharpens the magnetic changes associated with the martensitic transformation,leading to a substantial enhancement of the magnetic entropy change.Notably,the Mn48Cu2Ni40Sn10 alloy exhibits a magnetic entropy change of 52.5 J/kg·K under a 5 T magnetic field.关键词
铁磁形状记忆合金/马氏体转变/磁热效应/磁熵变Key words
ferromagnetic shape memory alloy/martensitic transformation/magnetocaloric effect/magnetic entropy change分类
数理科学引用本文复制引用
胥平哲,陈海峰,夏紫璐,房勇,韩志达..Mn50-xCuxNi40Sn10合金的相变和磁热效应研究[J].Journal of Changshu Institute of Technology,2025,39(2):17-20,70,5.基金项目
国家自然科学基金项目"Ni-Mn基铁磁形状记忆合金的低温相分离和交换偏置效应研究"(51371004) （51371004）
