高Bs铁基纳米晶合金研究进展及发展趋势  

Research progress and development trend ofFe-based nanocrystalline alloys with high B s

作　　者：朱争取 王璞 庞靖 张家泉[1] ZHU Zhengqu;WANG Pu;PANG Jing;ZHANG Jiaquan(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Qingdao Yunlu Advanced Materials Technology Co.,Ltd.,Qingdao 266232,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]青岛云路先进材料技术股份有限公司,山东青岛266232

出　　处：《功能材料》2023年第11期11059-11069,共11页Journal of Functional Materials

基　　金：山东省重点研发计划(2022CXGC020308)。

摘　　要：高BS铁基纳米晶合金(high BSnanocrystalline alloys, HBNAs)具备高磁导率、低高频铁损和近零的磁致伸缩,是制备高性能小型电子元器件的理想材料。一直以来,铁基纳米晶合金的BS受限于合金成分中Fe含量的高低,而如何掌控非晶前驱体的非晶形成能力(glass forming ability, GFA)和后端的电磁性能之间的平衡点,是推动HBNAs进一步发展的关键难题。在回顾Fe基纳米晶软磁合金发展历程的基础上,系统阐述了纳米晶的晶化热力学与动力学、晶化机制和高BS铁基纳米晶合金非晶形成能力改善方法的现有认识。通过分析高BS铁基纳米晶合金制备的研究现状及亟待解决的问题,以期为高BS铁基纳米晶软磁合金成分的开发、退火工艺的设计提供一定的启发和技术思路。High B S nanocrystalline alloys(HBNAs)with high permeability,low high frequency iron loss and near zero magnetostriction are ideal for the preparation of high performance small electronic components.The B S of Fe-based nanocrystalline alloys has been limited by the level of Fe content in the alloy composition.The search for a balance between the amorphous forming ability(glass forming ability,GFA)of the amorphous precursors and the electromagnetic properties of the back-end is a key challenge to drive the further development of HBNAs.This paper systematically describes the existing understanding of the thermodynamics and kinetics of nanocrystalline crystallization,the crystallization mechanisms and the improvement pathway of the amorphous forming ability of HBNAs.By systematically analyzing the current research status of the preparation of Fe-based nanocrystalline alloys and the problems that need to be solved,we aim to provide some inspiration and technical ideas for the development of the composition and design of the annealing process of high-performance nanocrystalline soft magnetic alloys in China.

关 键 词：高BS铁基纳米晶 晶化机制 退火工艺 非晶形成能力 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TG132.271[金属学及工艺—合金]