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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 日本东北大学金属材料研究所 客座教授 日本城西国际 客座教授
性别：男
毕业院校：日本东北大学
学位：博士
所在单位：材料科学与工程学院
学科：材料学. 材料加工工程. 材料物理与化学
办公地点：大连理工大学材料学院
联系方式：0411-84706063 http://anam.dlut.edu.cn
电子邮箱：wzhang@dlut.edu.cn
Soft magnetic Fe-Si-B-Cu nanocrystalline alloys with high Cu concentrations
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论文类型：期刊论文
发表时间：2017-10-25
发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS
收录刊物：SCIE、EI
卷号：722
页面范围：859-863
ISSN号：0925-8388
关键字：Fe-based nanocrystalline materials; Soft magnetic properties; Cu content; alpha-Fe nuclei; Manufacturability
摘要：High saturation magnetic flux density (B-s) soft magnetic nanocrystalline alloys with good manufacturability were developed in a simple Fe-Si-B-Cu alloy system with high Cu concentrations. The nanocrystalline alloys with high Bs of similar to 1.77 T and low coercivity of similar to 7.1 A m were obtained by annealing the melt-spun Fe-Si-B-Cu alloys containing 1.7-2.0 at% Cu. The high content of Cu facilitates the formation of high-number-density alpha-Fe nuclei with an average grain size of similar to 6 nm pre-existing in the amorphous matrix, which inhibits the excessive growth of the alpha-Fe grains by their competitive growth even during the low-heating-rate annealing, resulting in a fine nanostructure and excellent soft magnetic properties. (C) 2017 Elsevier B.V. All rights reserved.