{"title":"结晶动力学指导下FeSiBPCu合金软磁性能定制退火条件优化","authors":"Shujie Kang, Zhe Chen, Qianke Zhu, Zhijie Yan, Kewei Zhang","doi":"10.1016/j.jallcom.2025.182013","DOIUrl":null,"url":null,"abstract":"The study of crystallization kinetics aims to reveal the evolution regulations and kinetic mechanisms of the microstructures of materials during the transition from the amorphous or liquid state to the crystalline state. Therefore, in this study, the correlation between phase transition behavior, microstructure, and soft magnetic properties of FeSiBPCu alloys was investigated by XRD, DSC, and TEM characterization based on crystallization kinetics. It has been demonstrated that during non-isothermal crystallization, the crystallization peaks move to higher temperatures as the rate of temperature rise increases. The thermal stability of the α-Fe(Si) phase is found to be better by calculating the nucleation activation energy and growth activation energy. The crystallization mechanism of the alloy ranges from diffusion-controlled initial one-dimensional growth to final complex three-dimensional growth. The activation energies <em>E</em><sub>n</sub> for nucleation and <em>E</em><sub>g</sub> for grain growth of the alloy are 293.89<!-- --> <!-- -->kJ/mol and 261.88<!-- --> <!-- -->kJ/mol, respectively, indicating that the nucleation process of the alloy during isothermal crystallization is more difficult than grain growth. Moreover, optimization of heat treatment conditions based on crystallization kinetics resulted in nanocrystalline alloys (<em>D</em> = 36.3<!-- --> <!-- -->nm, <em>N</em><sub>d</sub> = 2.54×10<sup>22<!-- --> </sup>m<sup>-3</sup>) with high crystallization volume fraction and significantly improved soft magnetic properties (<em>B</em><sub>s</sub> = 1.69 ± 0.02<!-- --> <!-- -->T, <em>H</em><sub>c</sub> = 9.5 ± 0.8<!-- --> <!-- -->A/m, <em>μ</em><sub>e</sub> = 11220 ± 300), which verified the significance of the crystallization kinetics as a guide for the optimization of properties. This study provides an important theoretical basis and experimental reference for a deeper understanding of crystallization kinetics and optimization of material properties.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"3 1","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Crystallization kinetics-guided optimization of annealing conditions for tailoring soft magnetic properties in FeSiBPCu alloys\",\"authors\":\"Shujie Kang, Zhe Chen, Qianke Zhu, Zhijie Yan, Kewei Zhang\",\"doi\":\"10.1016/j.jallcom.2025.182013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The study of crystallization kinetics aims to reveal the evolution regulations and kinetic mechanisms of the microstructures of materials during the transition from the amorphous or liquid state to the crystalline state. Therefore, in this study, the correlation between phase transition behavior, microstructure, and soft magnetic properties of FeSiBPCu alloys was investigated by XRD, DSC, and TEM characterization based on crystallization kinetics. It has been demonstrated that during non-isothermal crystallization, the crystallization peaks move to higher temperatures as the rate of temperature rise increases. The thermal stability of the α-Fe(Si) phase is found to be better by calculating the nucleation activation energy and growth activation energy. The crystallization mechanism of the alloy ranges from diffusion-controlled initial one-dimensional growth to final complex three-dimensional growth. The activation energies <em>E</em><sub>n</sub> for nucleation and <em>E</em><sub>g</sub> for grain growth of the alloy are 293.89<!-- --> <!-- -->kJ/mol and 261.88<!-- --> <!-- -->kJ/mol, respectively, indicating that the nucleation process of the alloy during isothermal crystallization is more difficult than grain growth. Moreover, optimization of heat treatment conditions based on crystallization kinetics resulted in nanocrystalline alloys (<em>D</em> = 36.3<!-- --> <!-- -->nm, <em>N</em><sub>d</sub> = 2.54×10<sup>22<!-- --> </sup>m<sup>-3</sup>) with high crystallization volume fraction and significantly improved soft magnetic properties (<em>B</em><sub>s</sub> = 1.69 ± 0.02<!-- --> <!-- -->T, <em>H</em><sub>c</sub> = 9.5 ± 0.8<!-- --> <!-- -->A/m, <em>μ</em><sub>e</sub> = 11220 ± 300), which verified the significance of the crystallization kinetics as a guide for the optimization of properties. This study provides an important theoretical basis and experimental reference for a deeper understanding of crystallization kinetics and optimization of material properties.\",\"PeriodicalId\":344,\"journal\":{\"name\":\"Journal of Alloys and Compounds\",\"volume\":\"3 1\",\"pages\":\"\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Alloys and Compounds\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jallcom.2025.182013\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2025.182013","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Crystallization kinetics-guided optimization of annealing conditions for tailoring soft magnetic properties in FeSiBPCu alloys
The study of crystallization kinetics aims to reveal the evolution regulations and kinetic mechanisms of the microstructures of materials during the transition from the amorphous or liquid state to the crystalline state. Therefore, in this study, the correlation between phase transition behavior, microstructure, and soft magnetic properties of FeSiBPCu alloys was investigated by XRD, DSC, and TEM characterization based on crystallization kinetics. It has been demonstrated that during non-isothermal crystallization, the crystallization peaks move to higher temperatures as the rate of temperature rise increases. The thermal stability of the α-Fe(Si) phase is found to be better by calculating the nucleation activation energy and growth activation energy. The crystallization mechanism of the alloy ranges from diffusion-controlled initial one-dimensional growth to final complex three-dimensional growth. The activation energies En for nucleation and Eg for grain growth of the alloy are 293.89 kJ/mol and 261.88 kJ/mol, respectively, indicating that the nucleation process of the alloy during isothermal crystallization is more difficult than grain growth. Moreover, optimization of heat treatment conditions based on crystallization kinetics resulted in nanocrystalline alloys (D = 36.3 nm, Nd = 2.54×1022 m-3) with high crystallization volume fraction and significantly improved soft magnetic properties (Bs = 1.69 ± 0.02 T, Hc = 9.5 ± 0.8 A/m, μe = 11220 ± 300), which verified the significance of the crystallization kinetics as a guide for the optimization of properties. This study provides an important theoretical basis and experimental reference for a deeper understanding of crystallization kinetics and optimization of material properties.
期刊介绍:
The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.