Abstract
An important aspect of damage evolution in cast Al-Si-Mg base alloys is fracture/cracking of Si particles. This microstructural damage is quantitatively characterized as a function of strain rate in the range 10−4 to 3.7 × 10+3, at an approximately constant uniaxial compressive strain level (20 to 25 pct). It is shown that the fraction of damaged silicon particles, their average size, and size distribution do not vary significantly with the strain rate, and at all strain rates studied, larger Si particles are more likely to crack than the smaller ones. However, the stress-strain curves are sensitive to the strain rate. These observations have implications for modeling of deformation and fracture of cast components under high strain rate crash conditions.
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References
M.J. Couper, A.E. Neeson, and J.R. Grifiths: Fatigue Fract. Eng. Mater., 1990, vol. 13 (3), pp. 213–27.
M.K. Surappa, E. Blank, and J.C. Jaquet: Scripta Metall., 1986, vol. 20, pp. 1281–86.
A.M. Samuel and F.H. Samuel: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 2359–72.
E.N. Pan, C.S. Lin, and C.R. Roper: Am. Foundrymen Soc. Trans., 1990, vol. 98, pp. 735–46.
R.E. Spear and G.R. Gardener: Am. Foundrymen Soc. Trans., 1963, vol. 71, pp. 209–15.
J.F. Major, A. Makinde, P.D. Lee, B. Chamberlain, T. Scappaticci, and D. Rickman: Int. Cong. Exp. on Vehicle Suspension System Advancement, Detroit, MI, 1994, pp. 117–28.
Jien-Wei Yeh and Wen-Pin Liu: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3558–68.
M.D. Dighe and A.M. Gokhale: Scripta Mater., 1997, vol. 37, pp. 1435–40.
F.T. Lee, J.F. Major, and F.H. Samuel: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 1553–70.
A. Gangulee and J. Gurland: Trans. TMS-AIME, 1967, vol. 239, pp. 269–72.
M.D. Dighe: Master’s Dissertation, Georgia Institute of Technology, Atlanta, GA, 1998.
M.D. Dighe, A.M. Gokhale, and M.F. Horstemeyer: Metall. Mater. Trans. A, 1998, vol. 29A, pp. 905–08.
M.F. Horstemayer and A.M. Gokhale: Int. J. Solids Struct., vol. 36, 1999, pp. 5029–55.
W.A. Kawahara: Exp. Tech., 1990, March–April, pp. 58–60.
S.S. Hecker, M.G. Scout, and D.T. Eash: Proc. Workshop on Plasticity of Metals at Finite Strains: Theory, Experiment, and Computation, E.H. Lee and R.L. Mallet, eds., Stanford University, Stanford, CA, 1982, pp. 162–201.
U.S. Lindholm and L.M. Yeakley: High Strain Rate Testing: Tension and Compression, 1968.
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Dighe, M.D., Gokhale, A.M., Horstemeyer, M.F. et al. Effect of strain rate on damage evolution in a cast Al-Si-Mg base alloy. Metall Mater Trans A 31, 1725–1731 (2000). https://doi.org/10.1007/s11661-998-0331-7
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DOI: https://doi.org/10.1007/s11661-998-0331-7