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Co含量對FeCoPB非晶合金軟磁性能和彎曲韌性的影響
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1.有研工程技術(shù)研究院有限公司先進電子材料事業(yè)部;2.中國電子科技集團公司第十八研究所;3.有研廣東新材料技術(shù)研究院;4.北京航空航天大學材料科學與工程學院

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江西省重大課題研發(fā)專項(20194ABC28004); 有研科技集團有限公司科技創(chuàng)新基金天使研究項目(2019TS0102); 有研工程技術(shù)研究院有限公司科技創(chuàng)新(57272006);有研(廣東)新材料技術(shù)研究院技術(shù)開發(fā)項目(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:

    采用熔體旋淬的方法制備了FeCo含量達到87 at.% Fe-Co-P-B系非晶合金薄帶,研究了金屬元素Co對Fe-Co-P-B系非晶合金的形成能力、軟磁性能和彎曲韌性的影響規(guī)律。該合金系具有高的飽和磁化強度1.75-1.84 T,且熱處理后薄帶仍具有良好的彎曲韌性。添加Co元素后,提高了合金的居里溫度,惡化了矯頑力。對薄帶樣品施加12 MPa的拉應力,合金的矯頑力由12.8 A/m降低到6.5 A/m。因此,通過成分和應力的調(diào)控可以避免Fe基非晶合金熱處理引起的弛豫脆性問題,為獲得具有優(yōu)異軟磁性能和良好彎曲韌性的Fe基非晶合金提供重要途徑。

    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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史植廣,李軒,謝興鋮,楊劍,林中坤,曹瑞軍,張濤. Co含量對FeCoPB非晶合金軟磁性能和彎曲韌性的影響[J].稀有金屬材料與工程,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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  • 收稿日期:2022-07-08
  • 最后修改日期:2022-10-10
  • 錄用日期:2022-10-21
  • 在線發(fā)布日期: 2023-05-01
  • 出版日期: 2023-04-25