Nanocrystalline CoCrFeNiMn high-entropy alloy with tunable ferromagnetic properties

• 作者: Junjie Wang Shangshu Wu Shu Fu Sinan Liu Zhiqiang Ren Mengyang Yan Shuangqin Chen Si Lan Horst Hahn Tao Feng
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2021,（18）
• 页码范围: 126-130
• 页数: 5页
• 语种: 英文

摘要

A nanocrystalline CoCrFeNiMn high-entropy alloy(nc-HEA)with nano-multiphase structure was pre-pared by inert gas condensation(IGC)using a laser evaporation source.Encouragingly,the laser-IGC nc-HEA exhibits unexpected ferromagnetic behavior and the Curie temperature(Tc)increased nearly 10 times compared to any CoCrFeNiMn HEAs prepared by various other methods.In addition,the saturation magnetization(Ms)and Tc of the laser-IGC nc-HEA can be controlled via heat treatment,which is result-ing from the formation and structural evolution of magnetic nanophases during annealing.This work widens the design toolbox for high-performance nc-HEAs based upon laser-IGC technique.