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Strength asymmetry of ductile dendrites reinforced Zr- and Ti-based composites

Published online by Cambridge University Press:  03 March 2011

F.F. Wu ,
Z.F. Zhang ,
A. Peker ,
S.X. Mao ,
J. Das  and
J. Eckert
F.F. Wu
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Z.F. Zhang*
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
A. Peker
Affiliation:
Liquidmetal Technologies, Inc., Lake Forest, California 92630
S.X. Mao
Affiliation:
Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
J. Das
Affiliation:
Physical Metallurgy Division, Department of Materials and Geo Sciences, Darmstadt University of Technology, D-64287 Darmstadt, Germany
J. Eckert*
Affiliation:
Physical Metallurgy Division, Department of Materials and Geo Sciences, Darmstadt University of Technology, D-64287 Darmstadt, Germany
*
a) Address all correspondence to this author. e-mail: zhfzhang@imr.ac.cn
b) This author was an editor of this journal during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to https://www.mrs.org/publications/jmr/policy.html.
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Abstract

We report on significant asymmetry phenomena, including failure mode, fracture strength, and plasticity under compression and tension, for Zr- and Ti-based composites containing ductile dendrites. The failure of the Zr-based composite always occurs in a shear mode with a small strength asymmetry and different plasticity under tension and compression. In contrast, the Ti-based composite exhibits a significant high strength asymmetry and zero tensile plasticity although its compressive plasticity is high. We propose that the ratio, α=τ0/σ0 (τ0 and σ0 are the intrinsic shear and cleavage strengths), is a substantial parameter controlling the strength asymmetry and the failure mode of various materials.

Keywords

CompositeFractureStrength
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 9 , September 2006 , pp. 2331 - 2336
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1Zhang, Z.F., He, G., Eckert, J., and Schultz, L.: Fracture mechanisms in bulk metallic glassy materials. Phys. Rev. Lett. 91, 045505 (2003).CrossRefGoogle ScholarPubMed
2Schuh, C.A. and Lund, A.C.: Atomistic basis for the plastic yield criterion of metallic glass. Nat. Mater. 2, 449 (2003).CrossRefGoogle ScholarPubMed
3Yu, M.H.: Unified Strength Theory and Applications. (Springer, Berlin, Germany, 2001).Google Scholar
4Lewandowski, J.J. and Lowhaphandu, P.: Effects of hydrostatic pressure on the flow and fracture of a bulk amorphous metal. Philos. Mag. 83, 3427 (2002).CrossRefGoogle Scholar
5Ishihara, M., Sumita, J., Shibata, T., Iyoku, T., and Oku, T.: Principle design and data of graphite components. Nucl. Eng. Des. 233, 251 (2004).CrossRefGoogle Scholar
6Radovic, M., Barsoum, M.W., El-Raghy, T., Wiederhorn, S.M., and Luecke, W.E.: Effect of temperature, strain rate and grain size on the mechanical response of Ti3SiC2 in tension. Acta Mater. 50, 1297 (2002).CrossRefGoogle Scholar
7Engelder, T. and Struct, J.: Transitional-tensile fracture propagation: A status report. J. Struct. Geol. 21, 1049 (1999).CrossRefGoogle Scholar
8Asthana, R., Tiwari, R., and Tiwari, S.N.: Compressive properties of zone-directionally solidified β-NiAl and its off-eutectic alloys with chromium and tungsten. Mater. Sci. Eng., A 336, 99 (2002).CrossRefGoogle Scholar
9Shackelford, J.F., Alexander, W., eds: Mater. Sci. Eng., Handbook. (CRC Press, Florida, 2000), pp. 527–938.CrossRefGoogle Scholar
10Courtney, T.H., ed: Mechanical Behavior of Materials (McGraw-Hill Company, Inc. 2000).Google Scholar
11Siegel, R.W.: Synthesis and properties of nanophase materials. Mater. Sci. Eng., A 168, 189 (1993).CrossRefGoogle Scholar
12Valiev, R.Z., Islamgaliev, R.K., and Alexandrov, I.V.: Bulk nanostructured materials from severe plastic deformation. Prog. Mater. Sci. 45, 103 (2000).CrossRefGoogle Scholar
13Cheng, S., Spencer, J.A., and Milligan, W.W.: Strength and tension/compression asymmetry in nanostructured and ultrafine-grain metals. Acta Mater. 51, 4505 (2003).CrossRefGoogle Scholar
14Lund, A.C. and Schuh, C.A.: Strength asymmetry in nanocrystalline metals under multiaxial loading. Acta Mater. 53, 3193 (2005).CrossRefGoogle Scholar
15Johnson, W.L.: Bulk glass-forming metallic alloys: Science and technology. MRS Bull. 24, 42 (1999).CrossRefGoogle Scholar
16Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
17Conner, 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).CrossRefGoogle Scholar
18Liu, 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.: Test environments and mechanical properties of Zr-base bulk amorphous alloys. Metall. Mater. Trans. A 29, 1811 (1998).CrossRefGoogle Scholar
19Zhang, Z.F., He, G., Eckert, J., and Schultz, L.: Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass. Acta Mater. 51, 1167 (2003).CrossRefGoogle Scholar
20Meyers, M.A., Chawla, K.K. eds: Mechanical Behavior of Materials (Prentice Hall, New Jersey, 1999).Google Scholar
21Hays, 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).CrossRefGoogle ScholarPubMed
22Hays, C.C., Kim, C.P., and Johnson, W.L.: Improved mechanical behavior of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions. Mater. Sci. Eng., A 304–306, 650 (2001).CrossRefGoogle Scholar
23He, G., Eckert, J., Löser, W., and Schultz, L.: Novel Ti-base nanostructure-dendrite composite with enhanced plasticity. Nat. Mater. 2, 33 (2003).CrossRefGoogle ScholarPubMed
24He, G., Eckert, J., Löser, W., and Schultz, L.: Composition dependence of the microstructure and the mechanical properties of nano/ultrafine-structured Ti-Cu-Ni-Sn-Nb alloys. Acta Mater. 52, 3035 (2004).CrossRefGoogle Scholar
25Sun, B.B., Sui, M.L., Wang, Y.M., He, G., Eckert, J., and Ma, E.: Ultrafine composite microstructure in a bulk Ti alloy for high strength, strain hardening and tensile ductility. Acta Mater. 54, 1349 (2006).CrossRefGoogle Scholar
26Zhang, Z.F. and Eckert, J.: Unified tensile fracture criterion. Phys. Rev. Lett. 94, 094301 (2005).CrossRefGoogle ScholarPubMed
27Zhang, H., Pan, X.F., Zhang, Z.F., Das, J., Kim, K.B., Müller, C., Baier, F., Kusy, M., Gebert, A., He, G., and Eckert, J.: Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites. Z. Metallkd. 96, 1 (2005).CrossRefGoogle Scholar