多元成分的融合:软磁高熵合金的结构调控与磁特性研究  

Integration of multiple components:Investigation of structural regulation and magnetic property for soft magnetic high-entropy alloys

作　　者：张东 向若飞 孙宜华 ZHANG Dong;XIANG Ruofei;SUN Yihua(Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials,College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,Hubei,China;Hubei Three Gorges Laboratory,Yichang 443002,Hubei,China)

机构地区：[1]三峡大学材料与化工学院无机非金属晶态与能源转换材料重点实验室,湖北宜昌443002 [2]湖北三峡实验室,湖北宜昌443002

出　　处：《钢铁研究学报》2024年第9期1110-1127,共18页Journal of Iron and Steel Research

基　　金：国家重点研发计划资助项目(2023YFB3812200);冶金工业过程系统科学湖北省重点实验室(武汉科技大学)开放基金资助项目(Y202301);三峡大学科研启动基金资助项目(2023RCKJ0031)。

摘　　要：软磁材料是实现电子元器件上游配套关键产业技术突破的重要能源材料之一。高性能软磁材料的开发和研究对于节能、降耗和“中国制造2025”实施等具有重要意义。高熵合金由于Fe、Co和Ni等磁性元素掺杂具有大的磁特性调节范围,因此高熵合金有望成为性能优异的软磁材料。着重综述了影响高熵合金磁性能的关键因素,强调了高熵软磁合金磁特性对化学成分、制备工艺参数和相结构非常敏感,同时明确了热处理是改善高熵合金微观组织,优化其磁性能的主要手段。此外,基于理论模拟方法从原子尺度阐释了影响高熵软磁合金磁特性的内在机制,进一步厘清了高熵软磁合金磁性与磁畴间的依赖关系。最后凝练了目前部分高熵软磁合金发展存在的科学问题,并简要概括了未来高熵软磁合金发展需要关注的方向。Soft magnetic material is one of the key energy materials to realize the technological breakthrough in the important industries upstream of electronic components.The advancement and investigation of high-performance soft magnetic materials are paramount for energy conservation,consumption reduction,and the successful execution of the"Made in China 2025"initiative.High-entropy alloys have a wide range of adjustable magnetic properties due to the doping of magnetic elements such as Fe,Co and Ni.Therefore,high-entropy alloys are poised to emerge as superior soft magnetic materials.This review delineates the pivotal factors influencing the magnetic properties of high-entropy alloys,highlighting the magnetic properties of high-entropy soft magnetic alloys are very sensitive to the chemical composition,preparation process and parameters,and the phase structure.Heat treatment is identified as the primary strategy for refining microstructures of high-entropy alloys and optimize their properties.In addition,the intrinsic mechanism that affects the magnetic characteristics of high-entropy soft magnetic alloys is elucidated from the atomic scale based on the theoretical simulation method,which further defines the dependence relationship between the magnetic properties of high-entropy soft magnetic alloys and the magnetic domains.Finally,it condenses part of the scientific problems in the development of highentropy soft magnetic alloys and briefly summarizes the directions that should be focused on in the future development of high-entropy soft magnetic alloys.

关 键 词：高熵合金 合金元素 微观组织 软磁性能 矫顽力 

分 类 号：TG13[一般工业技术—材料科学与工程]