Effect of pulling speed on the organization and performance of the directional annealing zone and the initial transition zone of Fe6.5Si<i>x</i>B alloy

DONG Zhongqi; XIANG Xingyu; LIU YaJun; PAN Enbao; MENG Yanjun; WU Xiaolong

doi:10.7513/j.issn.1004-7638.2025.06.024

Volume 46 Issue 6

Dec. 2025

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DONG Zhongqi, XIANG Xingyu, LIU YaJun, PAN Enbao, MENG Yanjun, WU Xiaolong. Effect of pulling speed on the organization and performance of the directional annealing zone and the initial transition zone of Fe6.5SixB alloy[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(6): 191-200. doi: 10.7513/j.issn.1004-7638.2025.06.024

Citation:

DONG Zhongqi, XIANG Xingyu, LIU YaJun, PAN Enbao, MENG Yanjun, WU Xiaolong. Effect of pulling speed on the organization and performance of the directional annealing zone and the initial transition zone of Fe6.5SixB alloy[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(6): 191-200. doi: 10.7513/j.issn.1004-7638.2025.06.024

Citation:

DONG Zhongqi, XIANG Xingyu, LIU YaJun, PAN Enbao, MENG Yanjun, WU Xiaolong. Effect of pulling speed on the organization and performance of the directional annealing zone and the initial transition zone of Fe6.5SixB alloy[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(6): 191-200. doi: 10.7513/j.issn.1004-7638.2025.06.024

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Effect of pulling speed on the organization and performance of the directional annealing zone and the initial transition zone of Fe6.5SixB alloy

doi: 10.7513/j.issn.1004-7638.2025.06.024

1.
Metal Material Fine Crystal Preparation Technology Innovation Center, Hebei Vocational Technical University of Industry, Shijiazhuang 050091, Hebei, China
2.
Mechanical and Electrical Engineering College, Hebei Normal University of Science & Technology, Qinhuangdao 066000, Hebei, China
3.
HBIS Material Technology Research Institute Co., LTD., Shijiazhuang 050011, Hebei, China

More Information

Received Date: 2025-04-27
Accepted Date: 2025-06-19
Rev Recd Date: 2025-06-16

Available Online: 2025-12-31

Publish Date: 2025-12-31

Abstract

Abstract

The Fe6.5SixB alloy was prepared by a directional solidification technique. The effects of pulling rate and B content on the the microstructure evolution of the directional annealing zone and the initial transition zone of directional solidified Fe6.5SixBi alloy, as well as mechanical and magnetic properties were studied. XRD was used to determine the microstructure of the alloy, SEM was used to analyze the microstructure and phase composition of the alloy, and the magnetic properties of the alloy were determined by using vibration sample magnetometer at high and low temperature. The results show that the columnar dendrite grows in the parallel pulling rate direction at the annealing zone of Fe6.5SixB alloy, and the transition zone is large lumpy grains. The directional annealing zone of Fe6.5Si alloy is mainly composed of A2 phase and (B2+D03) layered structure, and after B addition, the directional annealing zone of the alloy consists of phase A2 and and (A2+Fe₂B) lamellar eutectic structures. With the increase of pulling rate, the (B2 + D03) layered structue content increased in Fe6.5Si alloy, and (A2 + Fe₂B) became finer in Fe6.5SixB alloy. The strain value of the alloy first increases and then decreases. With the increase of B content, the magnetic polarization strength (J_s) and coercivity of Fe6.5SixB alloy show a decreasing trend, while the residual magnetism (J_r) shows an increasing trend; the hardness value of the alloy decreases.
- directional solidification,
- Fe6.5SixB alloy,
- solidification rate,
- pulling rate

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References(26)

References

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