Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-27T04:45:10.380Z Has data issue: false hasContentIssue false
  • English
  • Français

Experimental Observations of Cylindrical Indentation of a Metallic Glass

Published online by Cambridge University Press:  26 February 2011

Ashraf Bastawros ,
S.B. Biner  and
Ashraf Bastawros
Ashraf Bastawros
Affiliation:
bastaw@iastate.edu, Iowa State University, Aerospace Engineering and Mechanics, 2271 Howe Hall, Room 2347, Iowa State University, Ames, IA, 50011-2271, United States, (515) 294-3039, (515) 294-3262
S.B. Biner
Affiliation:
biner@ameslab.gov, Ames Laboratory (USDEO) Iowa State University, Materials and Engineering Physics, United States
Ashraf Bastawros
Affiliation:
bastaw@iastate.edu, Iowa State University, Aerospace Engineering and Mechanics, United States
Get access

Abstract

In this study, the deformation behavior of a metallic glass under a cylindrical indenter is elucidated with in situ observations. The experimental observations for various indenter radii provide information on both macroscopic and microscopic details of the deformation. The deformation zones developed under indenters with different radii were found to be self-similar, in agreement with the predictions of the cavity expansion model. It will be shown that, the evolution of shear bands under the indenter resembles the solutions obtained from the slip line analysis. Finally, full field strain measurements can provide the detailed information regarding the temporal and the spatial evolution of the shear bands during the course of deformation.

Keywords

stress/strain relationshiptextureductility
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 903: Symposium Z – Amorphous and Nanocrystalline Metals for Structural Applications , 2005 , 0903-Z12-01
Copyright
Copyright © Materials Research Society 2006

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

1 Bruck, H.A., Christman, T., Rosakis, A.J. and Johnson, W.L., Scripta Metallurgica et Materialia 30, 429 (1993).Google Scholar
2 Conner, R.D., Li, Y., Nix, W.D. and Johnson, W.L., Acta Materialia, 52, 2429–2429 (2004).Google Scholar
3 Flores, K.M. and Dauskardt, R.H., Acta Materialia, 49, 2527–2537 (2001).Google Scholar
4 Donovan, P.E. J. Material Science, 24, 523–535 (1989).Google Scholar
5 Kim, J.J, Choi, Y., Suresh, S. and Argon, A.S., Science, 295, 654 (2002).Google Scholar
6 Vaidyanathan, R., Dao, M., Ravichandran, G. and Suresh, S., Acta Materialia, 49, 3781–3789 (2001).Google Scholar
7 Patnaik, M.N.M., Narasimhan, R. and Ramamurty, U., Acta Materialia, 52, 3335–3345 (2004).Google Scholar
8 Antoniou, A., Bastawros, A.F., Lo, C.C.H., Biner, S.B., Materials Science and Engineering A, 394, 96–102 (2005).Google Scholar
9 Johnson, K.L. JMPS, 18, 115–126, 1970.Google Scholar
10 Jeong, H.Y., Li, X.W. Yee, A.F., Pan, J., Mech. of Materials, 19, 29–38 (1994).Google Scholar
11 Al-Abduljabbar, A. and Pan, J., Polymer Engineering and Science, 38(7), 1031–1038 (1998).Google Scholar
12 Bastawros, A.F., Bart-Smith, H., Evans, A.G., J Mech. Phys. Solids, 2000, 48, 301–322.Google Scholar
13 Brigham, E. O., The Fast Fourier Transform. Prentice-Hall Inc., New Jersey, 1974.Google Scholar
14 Chen, D.J., Chiang, F.P., Tan, Y.S., Don, H.S., Applied Optics, 1993, 32, 1839–1849.Google Scholar
15 Bastawros, A.F. and McManuis, R., Exp. Tech., 1998, 22(2), 35–37.Google Scholar