Formation, Mechanical and Magnetic Properties of (Fe,Co)-B-Si-Nb Bulk Glassy Alloys


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Fe- and Co-based bulk glassy alloys (BGAs) with diameters up to 5 and 4 mm were formed respectively in (Fe,Co)-B-Si-Nb system by copper mold casting. The Fe-based glassy alloys in [(Fe1-xCox)0.75B0.2Si0.05]96Nb4 system exhibit saturation magnetization (Is) of 0.84-1.13 T and low coercive force (Hc) of 1.5-2.7 A/m. Its BGAs exhibit superhigh strength ( σ f) of 3900-4250 MPa, Young’s modulus (E) of 190-210 GPa, elastic strain (εe) of 0.02 and plastic strain (εp) of 0.0025. For the Co-based glassy alloys in [(Co1-xFex)0.75B0.2Si0.05]96Nb4 system, in addition to superhigh σ f of 3980-4170 MPa, they also exhibit excellent soft magnetic properties, i.e., Is of 0.71-0.97 T, Hc of 0.7-1.8 A/m, high effective permeability (μe) of 1.48-3.25×104 at 1 kHz under a field of 1 A/m, and extremely low saturation magnetostriction (λs) of 0.55-5.76×10-6.



Materials Science Forum (Volumes 539-543)

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T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran




B. L. Shen and A. Inoue, "Formation, Mechanical and Magnetic Properties of (Fe,Co)-B-Si-Nb Bulk Glassy Alloys", Materials Science Forum, Vols. 539-543, pp. 2082-2087, 2007

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March 2007




[1] H. Fujimori, T. Masumoto, Y. Obi and M. Kikuchi: Jpn. J. Appl. Phys. Vol. 13 (1974), p.1889.

[2] T. Egami, P.J. Flanders and C.D. Graham Jr.: Appl. Phys. Lett. Vol. 26 (1975), p.128.

[3] H.S. Chen: Rep. Prog. Phys. Vol. 43 (1980) p.353.

[4] R.W. Cahn: Rapidly Solidified Alloys (Marcel Dekker, New York, 1993).

[5] � A. Inoue, Y. Shinohara and J.S. Gook: Mater. Trans., JIM Vol. 36 (1995), p.1427.

[6] T.D. Shen and R.B. Schwarz: Appl. Phys. Lett. Vol. 75 (1999), p.49.

[7] A. Inoue, A. Takeuchi and B.L. Shen: Mater. Trans. Vol. 42 (2001), p.970.

[8] R.B. Schwarz, T.D. Shen, U. Harms and T. Lillo: J. Magn. Magn. Mater. Vol. 283 (2004), p.223.

[9] M. Stoica, S. Roth, J. Eckert, L. Schultz and M.D. Baro: J. Magn. Magn. Mater. Vol. 290-291, (2005), p.1480.

[10] V. Ponnambalam, S.J. Poon and G.J. Shiflet: J. Mater. Res. Vol. 19 (2004), p.1320.

[11] Z.P. Lu, C.T. Liu, J.R. Thompson and W.D. Porter: Phys. Rev. Lett. Vol. 92 (2004), p.245503.

[12] T. Itoi and A. Inoue: Mater. Trans., JIM Vol. 40, (1999), p.643.

[13] M. Imafuku, S. Sato, E. Matsubara and A. Inoue: J. Non-cryst. Solids Vol. 312-314 (2002), p.589.

[14] M. Imafuku, S. Sato, H. Kosiba, E. Matubara and A. Inoue: Mater. Trans., JIM Vol. 41 (2000), p.1526.

[15] M. Imafuku, S. Sato, H. Koshiba, E. Matsubara and A. Inoue: Scripta Mater. Vol. 44 (2001), p.2369.

[16] M. Imafuku, C.F. Li, M. Matsushita and A. Inoue: Jpn. J. Appl. Phys., Part 1 Vol. 41 (2002), p.219.

[17] F.R. De Boer, R. Boom, W.C.M. Mattens, A.R. Miedema and A.K. Niessen, in Cohesion in metals (The North-Holland Physics Publishing, 1989).

[18] H.S. Chen, R.C. Sherwood and E.M. Gyorgy: IEEE Trans. Magn. Vol. 13 (1977), p.1538.

[19] K.I. Arai, N. Tsuya, M. Yamada and T. Masumoto: IEEE Trans. Magn. Vol. 12 (1976). P. 939.

[20] A. Inoue: Acta Mater. Vol. 48 (2000), p.279.

[21] A. Inoue B.L. Shen, H. Koshiba, H. Kato and A.R. Yavari: Nat. Mater. Vol. 2 (2003), p.661.

[22] B. L . Shen and A. Inoue: J. Phys. Condens. Matter Vol. 17 (2005), p.5647.

[23] A. Inoue, B.L. Shen and C.T. Chang: Acta Mater. Vol. 52 (2004), p.4093.

[24] B.L. Shen, A. Inoue and C.T. Chang: Appl. Phys. Lett. Vol. 85 (2004), p.4911.

[25] S.J. Poon, G.J. Shiflet, F.Q. Guo and V. Ponnambalam: J. Non-Cryst. Solids Vol. 317 (2003), p.1.

[26] C.T. Chang, B.L. Shen and A. Inoue: Appl. Phys. Lett. Vol. 88 (2006), p.011901.

[27] A. Inoue: Mater. Sci. Eng. Vol. 304-306 (2001), p.1.

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