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Strain rate dependence of plastic flow in Ce-based bulk metallic glass during nanoindentation

  • B.C. Wei (a1), L.C. Zhang (a1), T.H. Zhang (a2), D.M. Xing (a2), J. Das (a3) and J. Eckert (a3)...


The strain rate dependence of plastic deformation of Ce60Al15Cu10Ni15 bulk metallic glass was studied by nanoindentation. Even though the ratio of room temperature to the glass transition temperature was very high (0.72) for this alloy, the plastic deformation was dominated by shear banding under nanoindentation. The alloy exhibited a critical loading rate dependent serrated flow feature. That is, with increasing loading rate, the alloy exhibited a transition from less prominent serrated flow to pronounced serrated flow during continuous loading but from serrated to smoother flow during stepped loading.


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1Spaepen, F.: A microscopic mechanism for steady state inhomogeneous flow in metallic glasses. Acta Metall. 25, 407 (1977).
2Argon, A.S.: Plastic deformation in metallic glasses. Acta Metall. 27, 47 (1979).
3Kawamura, Y. and Inoue, A.: Newtonian viscosity of supercooled liquid in a Pd40Ni40P20 metallic glass. Appl. Phys. Lett. 77, 1114 (2000).
4Chen, H.S., Kato, H., Inoue, A., Saida, J., and Nishiyama, N.: Thermal evidence of stress-induced structural disorder of a Zr55Al10Ni5Cu30 glassy alloy in the non-Newtonian region. Appl. Phys. Lett. 79, 60 (2001).
5Nieh, T.G., Wadsworth, J., Liu, C.T., Ohkubo, T., and Hirotsu, Y.: Plasticity and structural instability in a bulk metallic glass deformed in the supercooled liquid region. Acta Mater. 49, 2887 (2001).
6Demetriou, M.D. and Johnson, W.L.: Modeling the transient flow of undercooled glass-forming liquids. J. Appl. Phys. 95, 2857 (2004).
7Reger-Leonhard, A., Xing, L.Q., Heilmaier, M., Gebert, A., Eckert, J., and Schultz, L.: Effect of crystalline precipitations on the mechanical behavior of bulk glass forming Zr-based alloys. Nanostruct. Mater. 10, 805 (1998).
8Reger-Leonhard, A., Heilmaier, M., and Eckert, J.: Newtonian flow of Zr55Cu30Al10Ni5 bulk metallic glassy alloys. Scripta Mater. 43, 459 (2000).
9Chen, H.S.: Plastic flow in metallic glasses under compression. Scripta Metall. 7, 931 (1973).
10Wright, W.J., Saha, R., and Nix, W.D.: Deformation mechanisms of the Zr40Ti14Ni10Cu12Be24 bulk metallic glass. Mater. Trans. 42, 642 (2001).
11Schuh, C.A. and Nieh, T.G.: A survey of instrumented indentation studies on metallic glasses. J. Mater. Res. 19, 46 (2004).
12Schuh, C.A., Lund, A.C., and Nieh, T.G.: New regime homogeneous flow in the deformation map of metallic glasses: Elevated temperature nanoindentation experiments and mechanistic modeling. Acta Mater. 52, 5879 (2004).
13Zhang, G.P., Wang, W., Zhang, B., Tan, J., and Liu, C.S.: On rate-dependent serrated flow behavior in amorphous metals during nanoindentation. Scripta Mater. 52, 1147 (2005).
14Greer, A.L., Castellero, A., Madge, S.V., Walker, I.T., and Wilde, J.R.: Nanoindentation studies of shear banding in fully amorphous and partially devitrified metallic alloys. Mater. Sci. Eng., A 375–377, 1182 (2004).
15Jiang, W.H., Pinkerton, F.E., and Atzmon, M.: Mechanical behavior of shear bands and the effect of their relaxation in a rolled amorphous Al-based alloy. Acta Mater. 53, 3469 (2005).
16Wei, B.C., Zhang, T.H., Li, W.H., Sun, Y.F., Yu, Y., and Wang, Y.R.: Serrated plastic flow during nanoindentation in Nd-based bulk metallic glasses. Intermetallics 12, 1239 (2004).
17Li, W.H., Zhang, T.H., Xing, D.M., Wei, B.C., Wang, Y.R., and Dong, Y.D.: Instrumented indentation study of plastic deformation in bulk metallic glasses. J. Mater. Res. 21, 75 (2006).
18Concustell, A., Sort, J., Alcala, G., Mato, S., Gebert, A., Eckert, J., and Baro, M.D.: Plastic deformation and mechanical softening of Pd40Cu30Ni10P20 bulk metallic glass during nanoindentation. J. Mater. Res. 20, 2719 (2005).
19Wei, B.C., Zhang, T.H., Li, W.H., Xing, D.M., Zhang, L.C., and Wang, Y.R.: Indentation creep behavior in Ce-based bulk metallic glasses at room temperature. Mater. Trans. 46, 2959 (2005).
20Ramamurty, U., Jana, S., Kawamura, Y., and Chattopadhyay, K.: Hardness and plastic deformation in a bulk metallic glass. Acta Mater. 53, 705 (2005).
21Wei, B.C., Zhang, T.H., Zhang, L.C., Xing, D.M., Li, W.H., and Liu, Y.: Plastic deformation in Ce-based bulk metallic glasses during depth-sensing indentation. Mater. Sci. Eng., A 2006, doi: 10.1016/j.msea.2006.01.161.
22Poisl, W.H., Oliver, W.C., and Fabes, B.D.: The relationship between indentation and uniaxial creep in amorphous selenium. J. Mater. Res. 10, 2024 (1995).
23Yang, A., Riester, L., and Nieh, T.G.: Strain hardening and recovery in a bulk metallic glass under nanoindentation. Scripta Mater. 54, 1277 (2006).
24Falk, M.L. and Langer, J.S.: Dynamics of viscoplastic deformation in amorphous solids. Phys. Rev. E 57, 7192 (1998).
25Russew, K., Hey, P.D., Sietsma, J., and Beukel, A.V.D.: Viscous flow of amorphous Fe40Ni40Si6B14 studied by direct creep measurements and relaxation of bend stresses under nonisothermal conditions. Acta Mater. 45, 2129 (1997).



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