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Co含量对FeCoPB非晶合金软磁性能和弯曲韧性的影响
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1.有研工程技术研究院有限公司先进电子材料事业部;2.中国电子科技集团公司第十八研究所;3.有研广东新材料技术研究院;4.北京航空航天大学材料科学与工程学院

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江西省重大课题研发专项(20194ABC28004); 有研科技集团有限公司科技创新基金天使研究项目(2019TS0102); 有研工程技术研究院有限公司科技创新(57272006);有研(广东)新材料技术研究院技术开发项目(66272033)


Effect of Co content on the soft magnetic properties and bending ductility of FeCoPB amorphous alloys
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1.GRIMAT Engineering Institute Co,Ltd;2.GRINM Guangdong Institute for New Advanced Materials and Technology

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    摘要:

    采用熔体旋淬的方法制备了FeCo含量达到87 at.% Fe-Co-P-B系非晶合金薄带,研究了金属元素Co对Fe-Co-P-B系非晶合金的形成能力、软磁性能和弯曲韧性的影响规律。该合金系具有高的饱和磁化强度1.75-1.84 T,且热处理后薄带仍具有良好的弯曲韧性。添加Co元素后,提高了合金的居里温度,恶化了矫顽力。对薄带样品施加12 MPa的拉应力,合金的矫顽力由12.8 A/m降低到6.5 A/m。因此,通过成分和应力的调控可以避免Fe基非晶合金热处理引起的弛豫脆性问题,为获得具有优异软磁性能和良好弯曲韧性的Fe基非晶合金提供重要途径。

    Abstract:

    Fe-Co-P-B amorphous alloys with high FeCo contents (up to 87 at%) were synthesized. The effects of the replacement of Fe by Co on glass formation ability (GFA), thermal stability, and magnetic properties were investigated in details. Fe87-xCoxP2B11 (x=5-7) amorphous alloys have high saturated magnetization (from 1.75 T to 1.84 T) and good bending ductility even after annealing. The Curie temperature (Tc) of the present Fe-Co-P-B alloys obviously increases with the substitution of Fe by Co, deteriorating the coercivity (Hc). The tensile stress applied to the Fe-based amorphous alloys can obviously reduce Hc from 12.8 A/m to 6.5 A/m with the tensile stress change from 0 to 12 MPa. The optimal adjustment of both the alloy composition and stress provides a important way to obtain Fe-based amorphous with both excellent soft-magnetic properties and good bending ductility, which can avoid annealing-induced embrittlement.

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史植广,李轩,谢兴铖,杨剑,林中坤,曹瑞军,张涛. Co含量对FeCoPB非晶合金软磁性能和弯曲韧性的影响[J].稀有金属材料与工程,2023,52(4):1530~1535.[Shi Zhiguang, Li xuan, Xie Xingcheng, Yang jian, Lin Zhongkun, Cao Ruijun, Zhang Tao. Effect of Co content on the soft magnetic properties and bending ductility of FeCoPB amorphous alloys[J]. Rare Metal Materials and Engineering,2023,52(4):1530~1535.]
DOI:10.12442/j. issn.1002-185X.20220570

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历史
  • 收稿日期:2022-07-08
  • 最后修改日期:2022-10-10
  • 录用日期:2022-10-21
  • 在线发布日期: 2023-05-01
  • 出版日期: 2023-04-25