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] |
| Co含量对FeCoPB非晶合金软磁性能和弯曲韧性的影响 |
| 投稿时间：2022-07-08 修订日期：2022-10-10 |
| 中文关键词: Fe基非晶合金 软磁性能 弯曲韧性 应力调控 |
| 基金项目: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) |
| 中文摘要: |
| 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。 |
| Effect of Co content on the soft magnetic properties and bending ductility of FeCoPB amorphous alloys |
| 英文关键词:Fe-based amorphous alloys Soft magnetic properties Bending ductility Applied tensile stress |
| 英文摘要: |
| 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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