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Direct observations on the evolution of shear bands into cracks in metallic glass

Published online by Cambridge University Press:  31 January 2011

Rui T. Qu ,
Fufa Wu ,
Zhe-Feng Zhang  and
Jurgen Eckert
Rui T. Qu
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
Fufa Wu
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China; and School of Materials and Chemical Engineering, Liaoning University of Technology, Jinzhou 121001, People’s Republic China
Zhe-Feng Zhang*
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
Jurgen Eckert*
Affiliation:
IFW Dresden, Institute for Complex Materials, D-01171 Dresden, Germany
*
a) Address all correspondence to this author. e-mail: [email protected]
b) This author was an editor of this journal during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs.org/jmr_policy
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Abstract

The evolution of shear bands (SBs) into cracks was observed by using a high-resolution scanning electron microscope in Zr59Cu20Al10Ni8Ti3 metallic glassy samples after a small punch test with different strain rates. As shear strain increased along a radial SB, three distinctive regions of morphologies were found (I) bonded SB, (II) microcrack plus bonded SB, and (III) full crack. In region II with moderate shear strain, some glassy “extrusions” were also observed. Once shear offset increases to a critical value, the SB becomes a full crack. For two different SBs in one specimen, the critical shear offsets maintain approximately the same value, which sheds light on the critical shear failure condition of metallic glass. The critical shear offset was also found to be sensitive to the strain rate and a higher strain rate led to less critical shear offset. It is suggested that the structure evolution and heat evolution within a shearing SB should be responsible for the previous results.

Keywords

AmorphousFractureMetal
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 10 , October 2009 , pp. 3130 - 3135
Copyright
Copyright © Materials Research Society 2009

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References

1.Greer, A.L.: Metallic glasses. Science 267, 1947 (1995).CrossRefGoogle ScholarPubMed
2.Johnson, W.L.: Fundamental aspects of bulk metallic glass formation in multicomponent alloys. Mater. Sci. Forum 225–227, 35 (1996).CrossRefGoogle Scholar
3.Ashby, M.F. and Greer, A.L.: Metallic glasses as structural materials. Scr. Mater. 54, 321 (2006).CrossRefGoogle Scholar
4.Eckert, J., Das, J., Pauly, S. and Duhamel, C.: Mechanical properties of bulk metallic glasses and composites. J. Mater. Res. 22, 285 (2007).CrossRefGoogle Scholar
5.Schuh, C.A., Hufnagel, T.C. and Ramamurty, U.: Mechanical behavior of amorphous alloys. Acta Mater. 55, 4067 (2007).CrossRefGoogle Scholar
6.Guo, H., Yan, P.F., Wang, Y.B., Tan, J., Zhang, Z.F., Sui, M.L. and Ma, E.: Tensile ductility and necking of metallic glass. Nat. Mater. 6, 735 (2007).CrossRefGoogle ScholarPubMed
7.Hofmann, D.C., Suh, J-Y., Wiest, A., Duan, G., Lind, M-L., Demetriou, M.D. and Johnson, W.L.: Designing metallic glass matrix composites with high toughness and tensile ductility. Nature 451, 1085 (2008).CrossRefGoogle ScholarPubMed
8.Hofmann, D.C., Suh, J-Y., Wiest, A., Lind, M-L., Demetriou, M.D. and Johnson, W.L.: Development of tough, low-density titaniumbased bulk metallic glass matrix composites with tensile ductility. Proc. Nat. Acad. Sci. U.S.A. 105, 20136 (2008).CrossRefGoogle ScholarPubMed
9.Wu, F.F., Zhang, Z.F., Shen, B.L., Mao, S.X. and Eckert, J.: Size effect on shear fracture and fragmentation of a Fe57.6Co14.4 B19.2Si4.8Nb4 bulk metallic glass. Adv. Eng. Mater. 10, 727 (2008).CrossRefGoogle Scholar
10.Wu, F.F., Zhang, Z.F., Shen, J. and Mao, S.X.: Shear deformation capability of different metallic glasses. J. Mater. Res. 23, 2662 (2008).CrossRefGoogle Scholar
11.Wu, F.F., Zhang, Z.F. and Mao, S.X.: Size-dependent shear fracture and global tensile plasticity of metallic glasses. Acta Mater. 57, 257 (2009).CrossRefGoogle Scholar
12.Wu, F.F., Zhang, Z.F., Mao, S.X., Peker, A. and Eckert, J.: Multiplication of shear bands and ductility of metallic glass. Appl. Phys. Lett. 90, 191909 (2007).CrossRefGoogle Scholar
13.Wu, F.F., Zhang, Z.F., Shen, J. and Mao, S.X.: Shear deformation and plasticity of metallic glass under multiaxial loading. Acta Mater. 56, 894 (2008).CrossRefGoogle Scholar
14.Mukai, T., Nieh, T.G., Kawamura, Y., Inoue, A. and Higashi, K.: Effect of strain rate on compressive behavior of a Pd40Ni40P20 bulk metallic glass. Intermetallics 10, 1071 (2002).CrossRefGoogle Scholar
15.Zhang, Z.F., Eckert, J. and Schultz, L.: Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass. Acta Mater. 51, 1167 (2003).CrossRefGoogle Scholar
16.Zhang, Z.F., He, G., Eckert, J. and Schultz, L.: Fracture mechanisms in bulk metallic glassy materials. Phys. Rev. Lett. 91, 045505 (2003).CrossRefGoogle ScholarPubMed
17.Argon, A.S. and Salama, M.: The mechanism of fracture in glassy materials capable of some inelastic deformation. Mater. Sci. Eng. 23, 219 (1976).CrossRefGoogle Scholar
18.Wright, W.J., Schwarz, R.B. and Nix, W.D.: Localized heating during serrated plastic flow in bulk metallic glasses. Mater. Sci. Eng., A 319–321, 229 (2001).CrossRefGoogle Scholar
19.Lewandowski, J.J. and Greer, A.L.: Temperature rise at shear bands in metallic glasses. Nat. Mater. 5, 15 (2006).CrossRefGoogle Scholar
20.Deng, D. and Lu, B.: Density change of glassy Pd77Si16.5Cu6.5 alloy during cold drawing. Scr. Metall. 17, 515 (1983).CrossRefGoogle Scholar
21.Cahn, R.W., Pratten, N.A., Scott, M.G., Sinning, H.R. and Leonardsson, L.: Studies of relaxation of metallic glasses by dilatometry and density measurements. Mater. Res. Soc. Symp. Proc. 28, 241 (1984).CrossRefGoogle Scholar
22.Argon, A.S., Megusar, J. and Grant, N.J.: Shear band induced dilations in metallic glasses. Scr. Metall. 19, 591 (1985).CrossRefGoogle Scholar
23.Vandenbeukel, A. and Sietsma, J.: The glass transition as a free volume related kinetic phenomenon. Acta Metall. Mater. 38, 383 (1990).CrossRefGoogle Scholar
24.Donovan, P.E. and Stobbs, W.M.: The structure of shear bands in metallic glasses. Acta Metall. 29, 1419 (1981).CrossRefGoogle Scholar
25.Li, J., Wang, Z.L. and Hufnagel, T.C.: Characterization of nanometer-scale defects in metallic glasses by quantitative highresolution transmission electron microscopy. Phys. Rev. B 65, 144201 (2002).CrossRefGoogle Scholar
26.Jiang, W.H. and Atzmon, M.: The effect of compression and tension on shear-band structure and nanocrystallization in amorphous Al90Fe5Gd5: A high-resolution transmission-electron-microscopy study. Acta Mater. 51, 4095 (2003).CrossRefGoogle Scholar
27.Wright, W.J., Hufnagel, T.C. and Nix, W.D.: Free volume coalescence and void formation in shear bands in metallic glass. J. Appl. Phys. 93, 1432 (2003).CrossRefGoogle Scholar
28.Donovan, P.E. and Cochrane, R.F.: Deformation-induced microcracking in Pd40Ni40P20 metallic glass. Scr. Metall. 22, 1765 (1988).CrossRefGoogle Scholar
29.Anderson, T.L.: Fracture Mechanics: Fundamentals and Applications (CRC Press LLC, Boca Raton, FL, 1995).Google Scholar
30.Wang, G., Liu, Y.H., Yu, P., Zhao, D.Q., Pan, M.X. and Wang, W.H.: Structural evolution in TiCu-based bulk metallic glass with large compressive plasticity. Appl. Phys. Lett. 89, 251909 (2006).CrossRefGoogle Scholar
31.Guo, H., Wen, J., Xiao, N.M., Zhang, Z.F. and Sui, M.L.: The more shearing, the thicker shear band and heat-affected zone in bulk metallic glass. J. Mater. Res. 23, 2133 (2008).CrossRefGoogle Scholar
32.Zhang, Y., Stelmashenko, N.A., Barber, Z.H., Wang, W.H., Lewandowski, J.J. and Greer, A.L.: Local temperature rises during mechanical testing of metallic glasses. J.Mater. Res. 22, 419 (2007).CrossRefGoogle Scholar
33.Carslaw, H.S. and Jaeger, J.C.: Conduction of Heat in Solids (Clarendon Press, Oxford, UK, 1986).Google Scholar