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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
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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

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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