Influence of thermal history on the crystallization behavior of high-Bs Fe-based amorphous alloys  

作　　者：Bowen Zang Lijian Song Richard Parsons Jie Shen Meng Gao Yan Zhang Juntao Huo Yonghao Sun Fushan Li Kiyonori Suzuki Jun-Qiang Wang Weihua Wang 

机构地区：[1]CAS Key Laboratory of Magnetic Materials and Devices,and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [3]Department of Materials Science and Engineering,Monash University,Clayton VIC 3800,Australia [4]Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2023年第5期173-180,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the“Pioneer and Leading Goose”R&D Program of Zhejiang(Grant No.2022C01023);National Natural Science Foundation of China(Grant Nos.52101205,92163108,51922102,52001319,and 51971239);Hunan Key Laboratory of Design and Manufacture of Electromagnetic Equipment under the Open Foundation(Grant No.DC202005);Zhejiang Provincial Natural Science Foundation of China(Grant No.LGF22E010002).

摘　　要：A crucial step in creating cutting-edge soft magnetic alloys is the nanocrystallization of Fe-based amorphous alloys.However,it is unclear how the thermal history affects the nanocrystallization.In this work,high-precision nanocalorimetry and in-situ hightemperature transmission electron microscopy are used to systematically examine how the pre-annealing relaxation process affects the nanocrystallization of Fe-based amorphous alloys.We discover that the glass with more thermal energy storage will crystallize into superb nanocrystalline structures with exceptionally advanced soft magnetism.The soft magnetic properties of Fe-B nanocrystalline alloys can be improved by increasing the relaxation temperature.This finding provides solid and clear evidence for the influences of thermal history on crystallization behavior for Fe-based amorphous alloys,which is helpful for designing advanced soft magnetic nanocrystalline alloys.

关 键 词：amorphous alloys enthalpy relaxation NANOCRYSTALLIZATION microstructure development soft magnetic properties 

分 类 号：TG139.8[一般工业技术—材料科学与工程]