Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T01:58:22.073Z Has data issue: false hasContentIssue false
  • English
  • Français

Geometry-sensitive plasticity of a monolithic bulk metallic glass

Published online by Cambridge University Press:  01 February 2011

WenFei Wu  and
Yi Li
WenFei Wu
Affiliation:
[email protected], National University of Singapore, Department of Materials Science and Engineering, Engineering Drive 1, Singapore, 117576, Singapore
Yi Li
Affiliation:
[email protected], National University of Singapore, Department of Materials Science and Engineering, Singapore, 117576, Singapore
Get access

Abstract

We report a strong geometry-dependence of compressive plasticity in a Zr-based bulk metallic glass (BMG). With a standard orthogonal geometry, the Zr-based BMG typically fractured at a plastic strain less than 2%. However, by modifying the sample geometry while maintaining the sample aspect ratio, a large apparent compressive plastic strain over 10% was achieved consistently. These results present a new method on arresting the catastrophic failure of the glassy alloys and offer ways for BMGs in engineering applications.

Keywords

amorphousalloystress/strain relationship
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1048: Symposium Z – Bulk Metallic Glasses–2007 , 2007 , 1048-Z05-06
Copyright
Copyright © Materials Research Society 2008

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] Spaepen, F. Acta Metall. 1977;25:407.Google Scholar
[2] Steif, PS, Spaepen, F, Hutchinson, JW. Acta Metall. 1982;30:447.Google Scholar
[3] Tang, CG, Li, Y, Zeng, KY. Mater. Sci. Eng. A 2004;384:215.Google Scholar
[4] Bei, H, Xie, S, George, EP. Phys. Rev. Lett. 2006;96:105503.Google Scholar
[5] Bhowmick, R, Raghavan, R, Chattopadhyay, K, Ramamurty, U. Acta Mater. 2006;54:4221.Google Scholar
[6] Choi-Yim, H, Johnson, WL. Appl. Phys. Lett. 1997;71:3808.Google Scholar
[7] Hays, CC, Kim, CP, Johnson, WL. Phys. Rev. Lett. 2000;84:2901.Google Scholar
[8] Lewandowski, JJ, Lowhaphandu, P. Phil. Mag. A 2002;82:3427.Google Scholar
[9] Schroers, J, Johnson, WL. Phys. Rev. Lett. 2004;93:255506.Google Scholar
[10] Lewandowski, JJ, Wang, WH, Greer, AL. Phil. Mag. Lett. 2005;85:77.Google Scholar
[11] Liu, YH, Wang, G, Wang, RJ, Zhao, DQ, Pan, MX, Wang, WH. Science 2007;315:1385.Google Scholar
[12] Wang, D, Tan, H, Li, Y. Acta Mater. 2005;53:2969.Google Scholar
[13] Schuh, CA, Nieh, TG. Acta Mater. 2003;51:87.Google Scholar
[14] Wu, WF, Li, Y, Schuh, CA. Philos. Mag. Accepted.Google Scholar
[15] Schuh, CA, Hufnagel, TC, Ramamurty, U. Acta Mater. 2007;55:4067.Google Scholar
[16] Choi-Yim, H, Conner, RD, Szuecs, F, Johnson, WL. Acta Mater. 2002;50:2737.Google Scholar
[17] Fan, C, Ott, RT, Hufnagel, TC. Appl. Phys. Lett. 2002;81:1020.Google Scholar
[18] Wada, T, Inoue, A, Greer, AL. Appl. Phys. Lett. 2005;86:251907.Google Scholar