|
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
The role of Cu content on structure and magnetic properties of Fe-Si-B-P-Cu nanocrystalline alloys
点击次数：
论文类型：期刊论文
发表时间：2019-03-01
发表刊物：JOURNAL OF MATERIALS SCIENCE
收录刊物：SCIE、Scopus
卷号：54
期号：5
页面范围：4400-4408
ISSN号：0022-2461
关键字：Amorphous alloys; Copper alloys; Grain refinement; Nanocrystals; Nanomagnetics; Nanoparticles, Amorphous matrices; Amorphous phase; Annealed alloys; Crystallization process; Effective permeability; Fe nanoparticles; Magnetic softness; Number density, Nanocrystalline alloys
摘要：The increase in Cu content from 1.0 to 1.7 at.% changes the as-spun Fe86-xSi2B8P4Cux and Fe84-yMn2Si2B8P4Cuy alloys from a single amorphous phase to a composite of -Fe nanoparticles dispersing in amorphous matrix and significantly refines the nanostructure and improves the magnetic softness of the annealed alloys. The as-spun Fe82.3Mn2Si2B8P4Cu1.7 amorphous alloy containing high number density -Fe nanoparticles forms uniform nanostructure with fine -Fe grains in an average size of 17nm after annealing and exhibits low coercivity of 8.4 Am-1 and high effective permeability of 15000 at 1kHz, which are superior to those of 38nm, 85.4 Am-1 and 1400, respectively, for the Fe83Mn2Si2B8P4Cu1 amorphous alloy. The mechanism relating to the effect of Cu content on the grain refinement was discussed in terms of the as-spun structure and crystallization process of the alloys.