杜帅龙,孙继兵,张硕东,王舒,董志鑫,张磊.Fe<sub>73</sub>Si<sub>15</sub>Nb<sub>3</sub>B<sub>8</sub>Cu<sub>1</sub>铁芯薄带的热处理工艺研究[J].稀有金属材料与工程,2019,48(10):3352~3358.[Du Shuai-long,Sun Ji-bing,Zhang Shuo-dong,Wang Shu,Dong Zhi-xin,Zhang Lei.Study on Heat Treatment Process of Fe<sub>73</sub>Si<sub>15</sub>Nb<sub>3</sub>B<sub>8</sub>Cu<sub>1</sub> Core Ribbons[J].Rare Metal Materials and Engineering,2019,48(10):3352~3358.]
Fe<sub>73</sub>Si<sub>15</sub>Nb<sub>3</sub>B<sub>8</sub>Cu<sub>1</sub>铁芯薄带的热处理工艺研究
投稿时间:2018-05-28  修订日期:2018-07-25
中文关键词:  非晶纳米晶薄带  熔体快淬  热处理  微观结构  磁性能
基金项目:国家自然科学基金资助(项目号51671078, 51271072),河北省自然科学(E2015202008)
中文摘要:
      本文对用Finemet型Fe73Si15Nb3B8Cu1快淬薄带制备的铁芯增加预退火处理,再在540 oC晶化退火处理得到退火铁芯。结果表明,随着预退火温度提高,预退火的薄带及再经晶化退火的薄带的韧性均逐渐降低,预退火后非晶薄带的第一晶化温度变化不大,而第二晶化峰值温度向高温方向偏移,预退火扩大了非晶薄带晶化退火的温度范围,有利于获得性能更加稳定的非晶纳米晶薄带;增加预退火处理的薄带的晶粒尺寸比直接晶化退火薄带的晶粒分布更均匀,其中在450 oC预退火的薄带经晶化退火后,晶粒尺寸在8~15 nm之间。增加预退火的铁芯样品,其振幅磁导率和铁损较直接退火的均有明显改善,其中经450 oC预退火的铁芯具有最大的振幅磁导率(μa=8.6×104, f=10 kHz)和最小的交流铁损(P0.5/10k=8.7 W/kg),分别较直接退火的铁芯升高了16.0%,下降了17.1%。
Study on Heat Treatment Process of Fe<sub>73</sub>Si<sub>15</sub>Nb<sub>3</sub>B<sub>8</sub>Cu<sub>1</sub> Core Ribbons
英文关键词:amorphous-nanocrystalline ribbons  melt-spinning  heat treatment  microstructure  magnetic properties
英文摘要:
      Finemet-type Fe73Si15Nb3B8Cu1 ribbon cores were prepared through adding pre-annealed treatment before crystallization annealing at 540 oC. It is found that, with an increase of pre-annealing temperature, the toughness of the pre-annealed and final crystallization annealed ribbons gradually decreased; and the second crystallization peak temperature shifted toward the higher temperature, although the difference among the first crystallization temperatures of the amorphous ribbons by pre-annealing treatment at different temperatures was not obvious. Namely, the pre-annealing expanded the crystallization annealing temperature range for the amorphous ribbon, which was beneficial to obtaining more stable and high performance amorphous nanocrystalline ribbons. The grain size of the additional pre-annealed ribbons was more uniform than that of the direct crystallization annealing ribbons, which was in the range of 8~15 nm for the ribbons by additional pre-annealing at 450 °C. The amplitude permeability and iron loss of iron cores with pre-annealing treatment had significantly improved compared with direct annealing samples, particularly, the cores pre-annealed at 450 oC had the largest amplitude magnetic permeability (μa=8.6×104, f=10 kHz) and the smallest AC core loss (P0.5/10k=8.7 W/kg), which were increased 16.0% and decreased 17.1% compared with directly annealing cores, respectively.
作者单位E-mail
杜帅龙 河北工业大学 duslhebut@163.com 
孙继兵 河北工业大学 hbgdsjb@126.com 
张硕东 河北工业大学 1042496889@qq.com 
王舒 河北工业大学  
董志鑫 河北工业大学  
张磊 天津中晟泰新能源科技有限公司  
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