Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-27T23:40:58.498Z Has data issue: false hasContentIssue false
  • English
  • Français

Near-threshold fatigue crack growth in bulk metallic glass composites

Published online by Cambridge University Press:  31 January 2011

Kombaiah Boopathy ,
Douglas C. Hofmann ,
William L. Johnson  and
Upadrasta Ramamurty
Kombaiah Boopathy
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
Douglas C. Hofmann
Affiliation:
Keck Laboratory for Engineering Materials, California Institute of Technology, Pasadena, California 91125; and Liquidmetal Technologies, 30452 Esperanza, Rancho Santa Margarita California 92688
William L. Johnson
Affiliation:
Keck Laboratory for Engineering Materials, California Institute of Technology, Pasadena, California 91125
Upadrasta Ramamurty*
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
*
a) Address all correspondence to this author. e-mail: ramu@materials.iisc.ernet.in
Get access

Abstract

A major drawback in using bulk metallic glasses (BMGs) as structural materials is their extremely poor fatigue performance. One way to alleviate this problem is through the composite route, in which second phases are introduced into the glass to arrest crack growth. In this paper, the fatigue crack growth behavior of in situ reinforced BMGs with crystalline dendrites, which are tailored to impart significant ductility and toughness to the BMG, was investigated. Three composites, all with equal volume fraction of dendrite phases, were examined to assess the influence of chemical composition on the near-threshold fatigue crack growth characteristics. While the ductility is enhanced at the cost of yield strength vis-à-vis that of the fully amorphous BMG, the threshold stress intensity factor range for fatigue crack initiation in composites was found to be enhanced by more than 100%. Crack blunting and trapping by the dendritic phases and constraining of the shear bands within the interdendritic regions are the micromechanisms responsible for this enhanced fatigue crack growth resistance.

Keywords

FatigueAmorphousComposite
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 12 , December 2009 , pp. 3611 - 3619
Copyright
Copyright © Materials Research Society 2009

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

REFERENCES

1.Schuh, C.A., Hufnagel, T.C., and Ramamurty, U.: Mechanical behavior of amorphous alloys. Acta Mater. 55, 4067 (2007).CrossRefGoogle Scholar
2.Gilbert, C.J., Schroeder, V., and Ritchie, R.O.: Mechanisms for fracture and fatigue-crack propagation in a bulk metallic glass. Metall. Mater. Trans. A 30, 1739 (1999).CrossRefGoogle Scholar
3.Raghavan, R., Ayer, R., Jin, H.W., Marzinsky, C.N., and Ramamurty, U.: Effect of shot peening on the fatigue life of a Zr-based bulk metallic glass. Scr. Mater. 59, 167 (2008).CrossRefGoogle Scholar
4.Bhowmick, R., Raghavan, R., Chattopadhyay, K., and Ramamurty, U.: Plastic flow softening in a bulk metallic glass. Acta Mater. 54, 4221 (2006).CrossRefGoogle Scholar
5.Yoo, B.G., Park, K.W., Lee, J.C., Ramamurty, U., and Jang, J.: Role of free volume in strain softening of as-cast and annealed bulk metallic glass. J. Mater. Res. 24, 1405 (2009).CrossRefGoogle Scholar
6.Nagendra, N., Ramamurty, U., Goh, T.T., and Li, Y.: Effect of crystallinity on the impact toughness of a La-based bulk metallic glass. Acta Mater. 48, 2603 (2000).CrossRefGoogle Scholar
7.Basu, J., Nagendra, N., Li, Y., and Ramamurty, U.: Microstructure and mechanical properties of partially-crystallized La-based bulk metallic glass. Philos. Mag. 83, 1747 (2003).CrossRefGoogle Scholar
8.Raghavan, R., Murali, P., and Ramamurty, U.: On the factors influencing the ductile to brittle transition in a bulk metallic glass. Acta Mater. 57, 3332 (2009).CrossRefGoogle Scholar
9.Raghavan, R., Shastry, V.V., Kumar, A., Jayakumar, T., and Ramamurty, U.: Toughness of as cast and partially recrystallized Zr-based bulk metallic glass. Intermetallics 17, 835 (2009).CrossRefGoogle Scholar
10.Liu, T., Shen, P., Qiu, F., Yin, Z., Lin, Q., Jiang, Q., and Zhang, T.: Synthesis and mechanical properties of TiC-reinforced Cu-based bulk metallic glass composites. Scr. Mater. 60, 84 (2009).CrossRefGoogle Scholar
11.Hays, 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
12.Szuecs, F., Kim, C.P., and Johnson, W.L.: Mechanical properties of Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5 ductile phase reinforced bulk metallic glass composite. Acta Mater. 49, 1507 (2001).CrossRefGoogle Scholar
13.Bian, Z., Kato, H., Qin, C., Zhang, W., and Inoue, A.: Cu–Hf–Ti–Ag–Ta bulk metallic glass composites and their properties. Acta Mater. 53, 2037 (2005).CrossRefGoogle Scholar
14.Qin, C.L., Zhang, W., Asami, K., Kimura, H., Wang, X.M., and Inoue, A.: A novel Cu-based BMG composite with high corrosion resistance and excellent mechanical properties. Acta Mater. 54, 3713 (2006).CrossRefGoogle Scholar
15.Hofmann, D.C., Suh, J.Y., Wiest, A., Duan, G., Lind, M.L., Demetriou, M.D., and Johnson, W.L.: Designing metallic glass matrix composites with high toughness and tensile ductility. Nature 451, 1086 (2008).CrossRefGoogle ScholarPubMed
16.Launey, M.E., Hofmann, D.C., Suh, J.Y., Kozachkov, H., Johnson, W.L., and Ritchie, R.O.: Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites. Appl. Phys. Lett. 94, 241910 (2009).CrossRefGoogle Scholar
17.Suresh, S.: Fatigue of Materials, 2nd ed. (Cambridge University Press, Cambridge, 1998).CrossRefGoogle Scholar
18.Flores, M., Johnson, W.L., and Dauskardt, R.H.: Fracture and fatigue behavior of a Zr–Ti–Nb ductile phase reinforced bulk metallic glass matrix composite. Scr. Mater. 49, 1181 (2003).CrossRefGoogle Scholar
19.Wang, G.Y., Liaw, P.K., Peker, A., Freels, M., Peter, W.H., Buchanan, R.A., and Brooks, C.R.: Comparison of fatigue behavior of a bulk metallic glass and its composite. Intermetallics 14, 1091 (2006).CrossRefGoogle Scholar
20.Launey, M.E., Hofmann, D.C., Johnson, W.L., and Ritchie, R.O.: Solution to the problem of the poor cyclic fatigue resistance of bulk metallic glasses. Proc. Nat. Acad. Sci. U.S.A. 106, 4986 (2009).CrossRefGoogle Scholar
21.Subhash, G., Dowding, R.J., and Kecskes, L.J.: Characterization of uniaxial compressive response of a bulk amorphous Zr–Ti–Cu–Ni–Be alloy. Mater. Sci. Eng., A 234, 33 (2002).CrossRefGoogle Scholar
22.Hofmann, D.C., Suh, J.Y., Wiest, A., Lind, M.L., Demetriou, M.D., and Johnson, W.L.: Development of tough, low-density titanium-based bulk metallic glass matrix composites with tensile ductility. Proc. Nat. Acad. Sci. U.S.A. 105, 20136 (2008).CrossRefGoogle ScholarPubMed
23. Standard test method for measurement of fatigue crack-growth rates. E 647–05. (ASTM International, W. Conshohocken, PA, 2005), p. 1–45.Google Scholar
24.Leonhard, A., Xing, L.Q., Heilmaier, M., Gebert, A., Eckert, J., and Schultz, L.: Effect of crystalline precipitations on the mechanical behavior of bulk glass forming Zr-based alloys. Nanostruct. Mater. 10, 805 (1998).CrossRefGoogle Scholar
25.Zhang, H., Wang, Z.G., Qiu, K.Q., Zang, Q.S., and Zhang, H.F.: Cyclic deformation and fatigue crack propagation of a Zr-based bulk amorphous metal. Mater. Sci. Ew., A 356, 173 (2003).CrossRefGoogle Scholar