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Thermoplastic deformation of ferromagnetic CoFe-based bulk metallic glasses

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Abstract

The superplastic deformation behavior of the ferromagnetic Co31Fe31Nb8B30 bulk metallic glass (BMG) in the supercooled liquid region was investigated. At a given temperature, the BMG exhibits a Newtonian behavior at low strain rates but a non-Newtonian behavior at high strain rates. The high thermal stability of this glassy alloy system offers an enough processing window to thermoplastic forming (TPF), and the strong processing ability was examined by simple micro-replication experiments. It is demonstrated that the TPF formability on length scales ranging down to nanometers can be achieved in the selected experimental condition. Based on the analysis of deformation behavior, the nearly full density sample (i.e. nearly 100%), was produced from water-atomized glassy powders and consolidated by the hot-pressing technique. The sample exhibits good soft-magnetic and mechanical properties, i.e., low coercive force of 0.43 Oe, high initial permeability of 4100 and high Vickers hardness 1398. These results suggest that the hot-pressing process opens up possibilities for the commercial exploitation of BMGs in engineering applications.

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References

  1. A. Inoue, N. Nishiyama, New bulk metallic glasses for applications as magnetic-sensing, chemical, and structural materials. MRS Bull. 32(8), 651–658 (2011)

    Article  Google Scholar 

  2. A.L. Greer, M. Glasses, Science 267(5206), 1947–1953 (1995)

    Article  ADS  Google Scholar 

  3. J. Qiang, D. Estevez, C. Chang, Q. Man, R.-W. Li, X. Wang, A. Inoue, High strength CoFe-based glassy alloy with high thermal stability. Mater. Lett. 114, 126–128 (2014)

    Article  Google Scholar 

  4. G. Kumar, H.X. Tang, J. Schroers, Nanomoulding with amorphous metals. Nature 457(7231), 868–872 (2009)

    Article  Google Scholar 

  5. Y. Saotome, K. Itoh, T. Zhang, A. Inoue, Superplastic nanoforming of Pd-based amorphous alloy. Scripta Mater. 44(8–9), 1541–1545 (2001)

    Article  Google Scholar 

  6. J. Schroers, T.M. Hodges, G. Kumar, H. Raman, A.J. Barnes, Q. Pham, T.A. Waniuk, Thermoplastic blow molding of metals. Mater. Today 14(1–2), 14–19 (2011)

    Article  Google Scholar 

  7. J. Schroers, T. Nguyen, S. O’Keeffe, A. Desai, Thermoplastic forming of bulk metallic glass—applications for MEMS and microstructure fabrication. Mater. Sci. Eng. A 449–451, 898–902 (2007)

    Google Scholar 

  8. B. Zhang, D.Q. Zhao, M.X. Pan, W.H. Wang, A.L. Greer, Amorphous metallic plastic. Phys. Rev. Lett. 94(20), 205502, (2005)

    Article  ADS  Google Scholar 

  9. S.F. Guo, Z.Y. Wu, L. Liu, Preparation and magnetic properties of FeCoHfMoBY bulk metallic glasses. J. Alloys Compd. 468(1–2), 54–57 (2009)

    Google Scholar 

  10. S.F. Guo, J.L. Qiu, P. Yu, S.H. Xie, W. Chen, Fe-based bulk metallic glasses: Brittle or ductile?. Appl. Phys. Lett. 105(16), 161901 (2014)

    Article  ADS  Google Scholar 

  11. J. Wang, R. Li, N. Hua, T. Zhang, Co-based ternary bulk metallic glasses with ultrahigh strength and plasticity. J. Mater. Res. 26(16), 2072–2079 (2011)

    Article  ADS  Google Scholar 

  12. A. Inoue, B. Shen, H. Koshiba, H. Kato, A.R. Yavari, Cobalt-based bulk glassy alloy with ultrahigh strength and soft magnetic properties. Nat. Mater. 2(10), 661–663 (2003)

    Article  ADS  Google Scholar 

  13. S. Sun, C.B. Murray, D. Weller, L. Folks, A. Moser, Monodisperse FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices. Science 287(5460), 1989–1992 (2000)

    Article  Google Scholar 

  14. D.A. Allwood, G. Xiong, C.C. Faulkner, D. Atkinson, D. Petit, R.P. Cowburn, Magnetic domain-wall logic. Science 309(5741), 1688–1692 (2005)

    Article  Google Scholar 

  15. D.A. Allwood, G. Xiong, R.P. Cowburn, Domain wall diodes in ferromagnetic planar nanowires. Appl. Phys. Lett. 85(14), 2848–2850, (2004)

    Article  ADS  Google Scholar 

  16. G. Finocchio, N. Maugeri, L. Torres, B. Azzerboni, Domain wall dynamics driven by a localized injection of a spin-polarized current. Magnet. IEEE Trans. 46(6), 1523–1526 (2010)

    Article  ADS  Google Scholar 

  17. G. Xie, D.V. Louzguine-Luzgin, H. Kimura, A. Inoue, Nearly full density Ni52.5Nb10Zr15Ti15Pt7.5 bulk metallic glass obtained by spark plasma sintering of gas atomized powders. Appl. Phys. Lett. 90(24), 241902 (2007)

    Article  ADS  Google Scholar 

  18. W. Zhang, C. Fang, Y. Li, Ferromagnetic Fe-based bulk metallic glasses with high thermoplastic formability. Scripta Mater. 69(1), 77–80 (2013)

    Article  Google Scholar 

  19. I.L. Kraus, V. Haslar, P. Duhaj, P. Svec, V. Studnicka, The structure and magnetic properties of nanocrystalline Co21Fe64—xNbxB15 alloys. Mater. Sci. Eng. A 226–228, 626–663 (1997)

    Google Scholar 

  20. V. Soyka, L. Kraus, Magnetic properties of stress/field annealed nanocrystalline FeCoNbB alloys. J. Magnet. Magnet. Mater. 203(1–3), 220–222 (1999)

    Article  ADS  Google Scholar 

  21. F. Faupel, P.W. Huppe, K. Ratzke, Pressure dependence and isotope effect of self-diffusion in a metallic glass. Phys. Rev. Lett. 65(10), 1219–1222 (1990)

    Article  ADS  Google Scholar 

  22. J. Lu, G. Ravichandran, W.L. Johnson, Deformation behavior of the Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass over a wide range of strain-rates and temperatures. Acta Mater. 51(12), 3429–3443 (2003)

    Article  Google Scholar 

  23. W.J. Kim, D.S. Ma, H.G. Jeong, Superplastic flow in a Zr65Al10Ni10Cu15 metallic glass crystallized during deformation in a supercooled liquid region. Scripta Mater. 49(11), 1067–1073 (2003)

    Article  Google Scholar 

  24. K.C. Chan, L. Liu, J.F. Wang, Superplastic deformation of Zr55Cu30Al10Ni5 bulk metallic glass in the supercooled liquid region. J. Non-Cryst. Solids 353(32–40), 3758–3763 (2007)

    Article  ADS  Google Scholar 

  25. W. Chen, Z. Liu, J. Schroers, Joining of bulk metallic glasses in air. Acta Mater. 62, 49–57 (2014)

    Article  Google Scholar 

Download references

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 51301189), Zhejiang Province Public Technology Research and Industrial Projects (Grant No. 2015C31043).

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Correspondence to Qikui Man.

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Wu, C., Hu, R., Man, Q. et al. Thermoplastic deformation of ferromagnetic CoFe-based bulk metallic glasses. Appl. Phys. A 123, 742 (2017). https://doi.org/10.1007/s00339-017-1359-6

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  • DOI: https://doi.org/10.1007/s00339-017-1359-6

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