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Soft magnetic properties of bulk nanocrystalline Fe–Co–B–Si–Nb–Cu alloy with high saturated magnetization of 1.35 T

Published online by Cambridge University Press:  03 March 2011

Baolong Shen  and
Akihisa Inoue
Baolong Shen*
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan; and
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan; and
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

Bulk nanocrystalline body-centered cubic- (bcc) (Fe,Co) alloy with high saturated magnetization and good soft magnetic properties was synthesized by the simple process of casting and annealing for the glass-type Fe62.8Co10B13.5Si10Nb3Cu0.7 alloy. It crystallizes through two exothermic reactions. The cylindrical glassy rod with the diameter of 1.5 mm was produced by copper mold casting. The subsequent annealing at the temperature higher than that of the first exothermic peak causes the formation of bcc-(Fe,Co) nanocrystalline with particle sizes between 10 and 15 nm. The bcc-(Fe,Co) alloy rods exhibit good soft magnetic properties of 1.35 T for saturation magnetization and 5 A/m for coercive force.

Keywords

Magnetic propertiesMetallic glassTransmission electron microscopy (TEM)
Type
Rapid Communications
Information
Journal of Materials Research , Volume 19 , Issue 9 , September 2004 , pp. 2549 - 2552
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1.Inoue, A., Shinohara, Y. andGook, J.S.: Thermal and magnetic properties of bulk Fe-based glassy alloys prepared by copper mold casting. Mater. Trans. JIM 36, 1427 (1995).Google Scholar
2.Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
3.Inoue, A. andGook, J.S.: Effect of additional elements (M) on the thermal stability of supercooled liquid in Fe72-xAl5Ga2P11C6B4Mx glassy alloys. Mater. Trans. JIM 37, 32 (1996).CrossRefGoogle Scholar
4.Shen, T.D. andSchwarz, R.B.: Bulk ferromagnetic glasses prepared by flux melting and water quenching. Appl. Phys. Lett. 75, 49 (1999).CrossRefGoogle Scholar
5.Koshiba, H., Inoue, A. andMakino, A.: Fe-based soft magnetic amorphous alloys with a wide supercooled liquid region. J. Appl. Phys. 85, 5136 (1999).CrossRefGoogle Scholar
6.Shen, B.L., Koshiba, H., Mizushima, T. andInoue, A.: Bulk amorphous Fe–Ga–P–B–C alloys with a large supercooled liquid region. Mater. Trans. JIM 41, 873 (2000).CrossRefGoogle Scholar
7.Shen, B.L., Kimura, H.M., Inoue, A. andMizushima, T.: Bulk glassy Fe–Co–Ga–P–C–B alloys with high glass-forming ability, high saturation magnetization and good soft magnetic properties. Mater. Trans. JIM 41, 1675 (2000).CrossRefGoogle Scholar
8.Pang, S.J., Zhang, T., Asami, K. andInoue, A.: Synthesis of Fe–Cr–Mo–C–B–P bulk metallic glasses with high corrosion resistance. Acta Mater. 50, 489 (2002).CrossRefGoogle Scholar
9.Pang, S.J., Zhang, T., Asami, K. andInoue, A.: Formation of bulk glassy Fe75-x-yCrxMoyC15B10 alloys and their corrosion behavior. J. Mater. Res. 17, 701 (2002).CrossRefGoogle Scholar
10.Inoue, A. andShen, B.L.: Soft magnetic bulk glassy Fe–B–Si–Nb alloys with high saturation magnetization above 1.5 T. Mater. Trans. 43, 766 (2002).CrossRefGoogle Scholar
11.Inoue, A.: High strength bulk amorphous alloys with low critical cooling rates. Mater. Trans. JIM 36, 866 (1995).CrossRefGoogle Scholar
12.Inoue, A.: Bulk Amorphous Alloys (Trans Tech Publications, Zurich, Switzerland, 1998), pp.1–33Google Scholar
13.Inoue, A., Shen, B.L. andOhsuna, T.: Soft magnetic properties of nanocystalline Fe–Si-B-Nb-Cu rod alloys obtained by crystallization of cast amorphous phase. Mater. Trans. 43, 2337 (2002).Google Scholar
14.Yoshizawa, Y. andYamauchi, K.: Fe-based soft magnetic alloys composed of ultrafine grain structure. Mater. Trans. JIM 31, 307 (1990).CrossRefGoogle Scholar
15.Inoue, A. andShen, B.L.: Soft magnetic properties of nanocrystalline Fe–Co–B–Si–Nb–Cu alloys in ribbon and bulk forms. J. Mater. Res. 18, 2799 (2003).Google Scholar
16.Yoshizawa, Y.: Magnetic properties and applications of nanostructured soft magnetic materials. Scripta Mater. 44, 1321 (2001).Google Scholar
17.Yoshiazawa, Y., Fujii, S., Ping, D.H., Ohnuma, M. andHono, K.: Magnetic properties of nanocrystalline FeMCuNbSiB alloys (M: Co, Ni). Scripta Mater. 48, 863 (2003).CrossRefGoogle Scholar
18.Chen, H.S.: Effects of composition and structure on magnetic properties of amorphous Fe–P–C alloys. Phys. Status Solidi A 17, 561 (1973).Google Scholar
19.Ohnuma, M., Hono, K., Onodera, H., Pedersen, J.S. andLinderoth, S.: Cu clustering stage before the crystallization in Fe–Si–B–Nb–Cu amorphous alloys. Nanostruct. Mater. 12, 693 (1999).CrossRefGoogle Scholar
20. B.L. Shen: unpublished data. (2003).Google Scholar
21.Boer, F.R., Boom, R., Mattens, W.C.M., Miedema, A.R. andNiessen, A.K.Cohesion in Metals (North-Holland, Amsterdam, The Netherlands, 1988), pp. 217–258.Google Scholar