Skip to main content Accessibility help
×
×
Home

Enhanced Plasticity of Zr-based Bulk Metallic Glass Matrix Composite with Ductile Reinforcement

  • Y.F. Sun (a1), B.C. Wei (a2), Y.R. Wang (a2), W.H. Li (a2) and C.H. Shek (a3)...

Abstract

A composite material containing uniformly distributed micrometer-sized Nb particles in a Zr-based amorphous matrix was prepared by suction cast. The resulting material exhibits high fractured strength over 1550 MPa and enhanced plastic strain of about 29.7% before failure in uniaxial compression test at room temperature. Studies of the serrations on the stress–strain curves and the shear bands on the fractured samples reveal that the amplitude of the stress drop of each serration step corresponds to the extent of the propagation of a single shear band through the materials. The composite exhibits more serration steps and smaller amplitude of stress drop due to the pinning of shear band propagation by ductile Nb particles.

Copyright

Corresponding author

a) Address all correspondence to this author. e-mail: apchshek@cityu.edu.hk

References

Hide All
1Choi-Yim, H. and Johnson, W.L.: Bulk metallic glass matrix composites. Appl. Phys. Lett. 71, 3808 (1997).
2Fan, C., Louzguine, D.V., Li, C.F. and Inoue, A.: Nanocrystalline composites with high strength obtained in Zr–Ti–Ni–Cu–Al bulk amorphous alloys. Appl. Phys. Lett. 75, 341 (1999).
3Conner, R.D., Dandliker, R.B. and Johnson, W.L.: Mechanical properties of tungsten and steel fiber reinforced Zr41.25Ti13.75Cu12.5Ni10Be22.5 metallic glass matrix composites. Acta Mater. 46, 6089 (1998).
4Kim, C.P., Busch, R., Masubr, A., Choi-Yim, H. and Johnson, W.L.: Processing of carbon-fiber-reinforced Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 bulk metallic glass composites. Appl. Phys. Lett. 79, 1456 (2001).
5Bian, Z., Pan, M.X., Zhang, Y. and Wang, W.H.: Carbon-nanotube-reinforced Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass composites. Appl. Phys. Lett. 81, 4740 (2002).
6Choi-Yim, H., Conner, R.D., Szuecs, F. and Johnson, W.L.: Processing, microstructure and properties of ductile metal particulate reinforced Zr57Nb5Al10Cu15.4Ni12.6 bulk metallic glass composites. Acta Mater. 50, 2737 (2002).
7Kühn, U., Eckert, J., Mattern, N. and Schultz, L.: ZrNbCuNiAl bulk metallic glass matrix composites containing dendritec bcc phase precipitates. Appl. Phys. Lett. 80, 2478 (2002).
8Dai, Q.L., Sun, B.B. and Sui, M.L.: High-performance bulk Ti–Cu– Ni–Sn–Ta nanocomposites based on a dendrite-eutectic microstructure. J. Mater. Res. 19, 2557 (2004).
9He, G., Eckert, J., Löser, W. and Schultz, L.: Novel Ti-base nanostructure-dendrite-composite with enhanced plasticity. Nat. Mater. 2, 33 (2003).
10Hays, C.C., Kim, C.P. and Johnson, W.L.: Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions. Phys. Rev. Lett. 84, 2901 (2000).
11Greer, A.L., Castellero, A., Madge, S.V., Walker, I.T. and Wilde, J.R.: Nanoindentation studies of shear banding in fully amorphous and partially devitrified metallic alloys. Mater. Sci. Eng. 375–577, 1182 (2004).
12Chen, M.W., Inoue, A. and Fan, C.: Fracture behavior of a nanocrystallized Zr65Cu15Al10Pd10 metallic glass. Appl. Phys. Lett. 74, 2131 (1999).
13Kühn, U., Eckert, J., Mattern, N. and Schultz, L.: Microstructure and mechanical properties of slowly cooled Zr–Nb–Cu–Ni–Al composites with ductile bcc phase. Mater. Sci. Eng. A 375–377, 322 (2004).
14Wei, B.C., Zhang, T.H. and Li, W.H.: Serrated plastic flow during nanoindentation in Nd-based bulk metallic glasses. Intermetallics 12, 1239 (2004).
15Spaepen, F.: A microscopic mechanism for steady state in homogeneous flow in metallic glasses. Acta Metall. 25, 407 (1977).
16Hufnagel, T.C., Cang, F.R. and Ott, T.: Controlling shear band behavior in metallic glasses through microstructural design. Intermetallics 10, 1163 (2002).
17Reed, J.M. and Walter, M.E.: Observation of serration characteristics and acoustic emission during serrated flow of an Al–Mg alloy. Mater. Sci. Eng. A359, 1 (2003).
18Pink, E.: The effect of precipitates on characteristics of serrated flow in AlZn5Mg1. Acta Metall. 37, 1773 (1989).
19Deschamps, A., Niewczas, M. and Bley, F.: Low-temperature dynamic precipitation in a supersaturated Al–Zn–Mg alloy and related strain hardening. Philos. Mag. A 79, 2485 (1999).
20Thevenet, D., Mliha-Touati, M. and Zeghloul, A.: The effect of precipitation on the Portevin–Le Chatelier effect in an Al–Zn– Mg–Cu alloy. Mater. Sci. Eng. A 266, 175 (1999).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed