Hostname: page-component-745bb68f8f-hvd4g Total loading time: 0 Render date: 2025-01-27T02:55:30.618Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Loading Rate on Failure in Bulk Metallic Glasses

Published online by Cambridge University Press:  11 February 2011

T. Jiao ,
C. Fan ,
L.J. Kecskes ,
T.C. Hufnagel  and
K.T. Ramesh
T. Jiao
Affiliation:
Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
C. Fan
Affiliation:
Department of Materials Science & Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
L.J. Kecskes
Affiliation:
U.S. Army Research Laboratory, Aberdeen Proving Ground, MD 21005–5069, USA
T.C. Hufnagel
Affiliation:
Department of Materials Science & Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
K.T. Ramesh
Affiliation:
Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
Get access

Abstract

We have investigated failure in bulk metallic glass-forming alloys under dynamic compression. We implemented a recovery technique for the compression Kolsky bar to obtain dynamically deformed, intact specimens at various stages of deformation; this allows us to characterize the development of failure. We have also used high-speed photography to examine the failure process during the recovery experiments. The experimental results indicate that the failure under dynamic loading is somewhat different from that under quasi-static loading. Specimens subjected to quasistatic deformation developed multiple shear bands and substantial plastic deformations, while specimens subjected to dynamic (—strain rate ∼103 s-1) compressive loading fail by fracture along one dominant shear band. The mechanisms of dynamic failure in bulk metallic glasses are discussed on the basis of these experimental results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 754: Symposium CC – Supercooled Liquids, Glass Transition and Bulk Metallic Glasses , 2002 , CC6.2
Copyright
Copyright © Materials Research Society 2003

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

REFERENCE

1. Davis, L. A., Das, S. K., Li, J. C. M. and Zedalis, M. S., International Journal of Rapid Solidification 8, 73 (1994)Google Scholar
2. Liu, C. T., Heatherly, L., Easton, D. S., Carmichael, C. A., Schneibel, J. H., Chen, C. H., Wright, J. L., Yoo, M. H., Horton, J. A., and Inoue, A., Metallurgical and Material Transactions A 29A, 181 (1998)Google Scholar
3. Xing, L. Q., Li, Y., Ramesh, K. T., Li, J. and Hufnagel, T. C., Physics Review B 64, 180201 (2001)Google Scholar
4. Bruck, H. A., Rosakis, A. J. and Johnson, W. L., Journal of Materials Research 11, 504 (1996)Google Scholar
5. Subash, G., Dowding, R. J. and Kecskes, L. J., Materials Science and Engineering A334, 33 (2003)Google Scholar
6. Hufnagel, T. C., Jiao, T., Li, Y., Xing, L. Q. and Ramesh, K. T., Journal of Materials Research 17, 1441 (2003)Google Scholar
7. Chen, W., Ravichandran, G., International Journal of Fracture 101, 141 (2000)Google Scholar
8. Coates, R. S. and Ramesh, K. T., Materials Science and Engineering 145A, 159 (1991)Google Scholar
9. Donovan, P. E., Acta Metall. 37, 445 (1989)Google Scholar
10. Lowhaphandu, P., Montgomery, S. L., and Lewandowski, J. J., Scripta Materialia 41, 19 (1999)Google Scholar