Effects of Two-Step Annealing on the Magnetic Properties of Iron-Based Nanocrystalline Soft Magnetic Material

Qiang Song; Shu Qing Qin

doi:10.4028/www.scientific.net/MSF.688.353

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HomeMaterials Science ForumMaterials Science Forum Vol. 688Effects of Two-Step Annealing on the Magnetic...

Effects of Two-Step Annealing on the Magnetic Properties of Iron-Based Nanocrystalline Soft Magnetic Material

Abstract:

In the present paper, the effects of two-step annealing on the soft magnetic properties of nanocrystalline Fe_73.5Cu₁Nb₃Si_13.5B₉ melt spun ribbons were studied. The two-step annealing comprises low-temperature preannealing (first step) for an α-Fe(Si) phase nucleation in an amorphous matrix, and a subsequent high-temperature annealing (second step) for the growth of precipitated crystallites. Compared with a nanocrystalline alloy obtained by conventional one-step annealing at 550 °C for 1 h, the grain size of α-Fe（Si）crystalline phase in the Fe_73.5Cu₁Nb₃Si_13.5B₉ alloy decreased greatly after it is pre-annealed at 480°C for 1 h followed by annealing at 550°C for 40 min. It has been shown that the soft magnetic properties can be significantly improved by applying two-step annealing. The decrease of grain size of α-Fe(Si) crystalline phase may result from the nucleation rate increase during the crystallization of pre-annealed.

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Materials Science Forum (Volume 688)

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353-357

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https://doi.org/10.4028/www.scientific.net/MSF.688.353

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Online since:

June 2011

Authors:

Qiang Song, Shu Qing Qin

Keywords:

Crystallization, Magnetic Property, Nanocrystalline Alloy, Two-Step Annealing

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References

[1] H. Shokrollahi, K. Janghorban: Journal of Materials Processing Technology, 189 (2007), p.2.

Google Scholar

[2] Jiancheng Tang, Xingyu Mao, Shangdong Li: Journal of Alloys and Compounds，375 (2004), p.233.

Google Scholar

[3] D.S. dos Santos, D.R. dos Santos: Journal of Non-Crystalline Solids, 304 (2002), p.56.

Google Scholar

[4] M. Hasiak, W.H. Ciurzyn ska, Y. Yamashiro: Materials Science and Engineering, A293 (2000), p.261.

Google Scholar

[5] H. Atmani, S. Grognet, J. Teillet: Journal of Non-crystalline Solids, 290 (2001), p.194.

Google Scholar

[6] P. Kwapuli nski, J. Rasek, Z. Stokłosa, G. Haneczok: Journal of Materials Processing Technology, 157–158 (2004), p.735.

DOI: 10.1016/j.jmatprotec.2004.07.132

Google Scholar

[7] Maria Teresa Clavaguera-Mora, Narcis Clavaguera, Daniel Crespo, Trinitat Pradell：Progress in Materials Science，47 (2002)，p.561.

Google Scholar

[8] Y.K. Chang, Y.H. Cheng , W.F. Pong: Journal of Electron Spectroscopy and Related Phenomena，114–116 (2001), p.831.

Google Scholar

[9] Hossein Asghari Shivaee, Hamid Reza Madaah Hosseini, Elmira Memarzadeh Lotfabad, Saied Roostaie: Journal of Alloys and Compounds, 491(2010), p.487.

Google Scholar

[10] A. Guptaa, N. Bhagat, G. Principi: Intermetallics, 8 (2000), p.287.

Google Scholar