首页|Co添加对FeSiBCuNb非晶纳米晶合金软磁性能的影响

Co添加对FeSiBCuNb非晶纳米晶合金软磁性能的影响

扫码查看
原文链接
  • 万方数据
  • 维普
通过单辊甩带法制备成分为Fe80.5-xCoxSi3.5B13.5Cu1Nb1.5(x=0,3,5,7,9)非晶合金带材,研究了 Co含量及退火温度对非晶纳米晶合金软磁性能与组织结构的影响.其中,退火温度为510 ℃,Co含量x=5时,Fe75.5Co5Si3.5B13.5Cu1Nb1.5非晶合金形成了由非晶基体和纳米晶粒组成的双相结构,晶粒尺寸D约为13.5 nm,具有低矫顽力Hc=2.5 A/m及高饱和磁感应强度Bs=1.59 T,获得了优异综合软磁性能.通过磁光克尔(magnet-ic-optical kerr,MOKE)显微镜观测合金表面磁畴结构,当退火温度为510 ℃,Co含量x=5时,内应力释放相对完全,纳米晶微观结构更加均匀,条状磁畴更清晰平直,磁畴的变化与Hc变化相对应.
Effect of Co element addition on soft magnetic properties of FeSiBCuNb amorphous nanocrystalline alloy
Amorphous alloy ribbons with nominal compositions of Fe80.5-xCoxSi3.5B13.5Cu1Nb1.5(x=0,3,5,7,9)were prepared by melt spinning technique,which is used to investigate the effects of Co content and annea-ling temperature on the soft magnetic properties and organization of amorphous nanocrystalline alloys.The Fe75.5Co5Si3.5B13.5Cu1Nb1.5 quenched amorphous alloy under annealing temperature of 510 ℃ form an amor-phous/nanocrystalline composite structure consisting of an amorphous matrix and nanograins and have excellent comprehensive soft magnetic properties,which contain the grain size D=13.5 nm,low coercivity Hc=2.5 A/m and high saturation magnetic induction intensity Bs=1.59 T.The magnetic domain structures on the surface of the ribbons at different annealing temperatures were observed by magnetic-optical kerr(MOKE)microscope.When the annealing temperature is 510 ℃ and the Co content x is 5,the internal stress release relative com-pletely,which leads to the uniform nanocrystalline microstructure and straight clearly striped domains,and the change of the magnetic domains corresponded to the change of Hc.

amorphous nanocrystalline soft magnetic alloyCo elementcoercivitymagnetic domainannealing temperature

郭琦、李晓涵、王志成、金亚旭、张克维、胡季帆

展开 >

太原科技大学材料科学与工程学院,太原 030024

非晶纳米晶软磁合金 Co元素 矫顽力 磁畴 退火温度

国家自然科学基金项目山西省基础研究计划项目山西省基础研究计划项目天津市光电检测技术与系统重点实验室开放课题天津市光电检测技术与系统重点实验室开放课题

51901150202103021245352021030212232732023LOTDS0012023LOTDS002

2024

10.3969/j.issn.1001-9731.2024.08.011

功能材料
重庆材料研究院 中国仪器仪表学会仪表材料学会

功能材料

CSTPCD北大核心
影响因子：0.918
ISSN：1001-9731
年,卷(期)：2024.55(8)