Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-15T02:50:20.675Z Has data issue: false hasContentIssue false
  • English
  • Français

Initiation and evolution of shear bands in bulk metallic glass under tension—An in situ scanning electron microscopy observation

Published online by Cambridge University Press:  31 January 2011

Qingping Cao ,
Feng Xu ,
Jingwei Liu ,
Lianyi Chen ,
Xiaodong Wang ,
Jianzhong Jiang ,
Alexander Minkow ,
Kejing Yang ,
H.J. Fecht  and
Julia Ivanisenko
...Show all authors
Qingping Cao*
Affiliation:
International Center for New-Structured Materials (ICNSM), Zhejiang University and Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Jianzhong Jiang*
Affiliation:
International Center for New-Structured Materials (ICNSM), Zhejiang University and Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
H.J. Fecht
Affiliation:
Materials Division, Faculty of Engineering, University of Ulm, D-89081 Ulm, Germany
Julia Ivanisenko
Affiliation:
Forschungszentrum Karlsruhe, Institut für Nanotechnologie, 76021 Karlsruhe, Germany
Shaoxing Qu
Affiliation:
International Center for New-Structured Materials (ICNSM), Zhejiang University, Hangzhou 310027, People’s Republic of China; and Institute of Applied Mechanics, School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, People’s Republic of China
*
Address all correspondence to these authors: a) e-mail: caoqp@zju.edu.cn
b) e-mail: jiangjz@zju.edu.cn
Get access

Abstract

The initiation and evolution of shear bands in Zr64.13Cu15.75Ni10.12Al10 bulk metallic glass tensile samples has been investigated in situ by scanning electron microscopy. The initial shear band originates from the highest stressed area, and does not propagate during further tension, which is attributed to the weakening of the stress field in front of the shear band tip, possibly caused by atomic rearrangement and local temperature rise. As a result, multiple shear bands occur in sequence with gradually increased length and offset. This result is due to the fact that the stress in front of the tip of the initial shear band does not concentrate again during further tension above the shear yield strength. Numerical analysis was carried out to investigate the stress distribution under tension, suggesting that the maximum pressure-dependent shear stress criterion overestimates the yield strength, while the shear plane criterion describes the conditions for the formation of shear bands well.

Keywords

AmorphousScanning electron microscopy (SEM)
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 9 , September 2009 , pp. 2924 - 2930
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Liu, Y.H., Wang, G., Wang, R.J., Zhao, D.Q., Pan, M.X. and Wang, W.H.: Super plastic bulk metallic glasses at room temperature. Science 315, 1385 (2007)Google Scholar
2Hofmann, 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
3Lewandowski, J.J. and Greer, A.L.: Temperature rise at shear bands in metallic glasses. Nat. Mater. 5, 15 (2006)CrossRefGoogle Scholar
4Eckert, J., Das, J., Pauly, S. and Duhamel, C.: Mechanical property of bulk metallic glasses and composites. J. Mater. Res. 22, 285 (2007)Google Scholar
5Schroers, J. and Johnson, W.L.: Ductile bulk metallic glass. Phys. Rev. Lett. 93, 255506 (2004)CrossRefGoogle ScholarPubMed
6Chen, M.W., Inoue, A., Zhang, W. and Sakurai, T.: Extraordinary plasticity of ductile bulk metallic glasses. Phys. Rev. Lett. 96, 245502 (2006)CrossRefGoogle ScholarPubMed
7Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000)Google Scholar
8Langer, J.S.: Shear transformation zone theory of deformation in metallic glasses. Scr. Mater. 54, 375 (2006)CrossRefGoogle Scholar
9Hufnagel, T.C., El-Deiry, P. and Vinci, R.P.: Development of shear band structure during deformation of a Zr57Ti5Cu20Ni8Al10 bulk metallic glass. Scr. Mater. 43, 1071 (2000)CrossRefGoogle Scholar
10Schuh, C.A., Hufnagel, T.C. and Ramamurty, U.: Mechanical behavior of amorphous alloys. Acta Mater. 55, 4067 (2007)CrossRefGoogle Scholar
11Lee, J.Y., Han, K.H., Park, J.M., Chattopadhyay, K., Kim, W.T. and Kim, D.H.: Deformation and evolution of shear bands under compressive loading in bulk metallic glass. Acta Mater. 54, 5271 (2006)CrossRefGoogle Scholar
12Ramamurty, U., Jana, S., Kawamura, Y. and Chatopadhyay, K.: Hardness and plastic deformation in a bulk metallic glass. Acta Mater. 53, 705 (2005)CrossRefGoogle Scholar
13Chen, L.Y., Zeng, Y.W., Cao, Q.P., Vainio, U., Park, B.J., Chen, Y.M., Zhang, Z.L., Kaiser, U., Wang, X.D., Hono, K. and Jiang, J.Z.: Homogeneity of Zr64.13Cu15.75Ni10.12Al10 bulk metallic glass. J. Mater. Res. (2009, in press).Google Scholar
14Zhang, Z.F., He, G., Eckert, J. and Schultz, L.: Fracture mechanisms in bulk metallic glassy materials. Phys. Rev. Lett. 91, 045505 (2003)CrossRefGoogle ScholarPubMed
15Schuh, C.A. and Lund, A.C.: Application of nucleation theory to the rate dependence of incipient plasticity during nanoindentation. J. Mater. Res. 19, 2152 (2004)CrossRefGoogle Scholar
16Packard, C.E. and Schuh, C.A.: Initiation of shear bands near a stress concentration in metallic glass. Acta Mater. 55, 5348 (2007)CrossRefGoogle Scholar
17Donovan, P.E.: A yield criterion for Pd40Ni40P20 metallic-glass. Acta Metall. 37, 445 (1989)Google Scholar
18Zhang, Z.F., Eckert, J. and Schultz, L.: Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass. Acta Mater. 51, 1167 (2003)Google Scholar
19Lund, A.C. and Schuh, C.A.: The Mohr-Colulomb criterion from unit shear processes in metallic glass. Intermetallics 12, 1159 (2004)CrossRefGoogle Scholar
20Kim, J.J., Choi, Y., Suresh, S. and Argon, A.S.: Nanocrystallization during nanoindentation of a bulk amorphous metal alloy at room temperature. Science 295, 654 (2002)CrossRefGoogle ScholarPubMed
21Wright, 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
22Yang, B., Morrison, M.L., Liaw, P.K., Buchanan, R.A., Wang, G.Y., Liu, C.T. and Denda, M.: Dynamic evolution of nanoscale shear bands in a bulk-metallic glass. Appl. Phys. Lett. 86, 141904 (2005)CrossRefGoogle Scholar
23Zhang, 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
24Spaepen, F.: A microscopic mechanism for steady state inhomogeneous flow in metallic glasses. Acta Metall. 25, 407 (1977)Google Scholar
25Bei, H., Xie, S. and George, E.P.: Softening caused by profuse shear banding in a bulk metallic glass. Phys. Rev. Lett. 96, 105503 (2006)Google Scholar