A CONSTITUTIVE MODEL FOR PARTICULATE-REINFORCED TITANIUM MATRIX COMPOSITES SUBJECTED TO HIGH STRAIN RATES AND HIGH TEMPERATURES

Abstract

Quasi-static and dynamic tension tests were conducted to study the mechanical properties of particulate-reinforced titanium matrix composites at strain rates ranging from 0.0001/s to 1000/s and at temperatures ranging from 20 °C to 650 °C Based on the experimental results, a constitutive model, which considers the effects of strain rate and temperature on hot deformation behavior, was proposed for particulate-reinforced titanium matrix composites subjected to high strain rates and high temperatures by using Zener-Hollomon equations including Arrhenius terms. All the material constants used in the model were identified by fitting Zener-Hollomon equations against the experimental results. By comparison of theoretical predictions presented by the model with experimental results, a good agreement was achieved, which indicates that this constitutive model can give an accurate and precise estimate for high temperature flow stress for the studied titanium matrix composites and can be used for numerical simulations of hot deformation behavior of the composites.

Keywords

Dates

  • Submission Date2013-02-22
  • Revision Date2013-04-20
  • Acceptance Date2013-04-25
  • Online Date2013-12-28

DOI Reference

10.2298/TSCI1305361S

References

  1. Davenport, S. B., et al., Development of Constitutive Equations for Modeling of Hot Rolling, Materials Science and Technology, 16 (2000), 5, pp. 539-546
  2. Zhang, H. J., et al., A Modified Zerilli-Armstrong Model for IC10 Alloy over a Wide Range of Temperature and Strain Rate, Material Science and Engineering A, 527 (2009), 1-2, pp. 328-333
  3. Li, W., et al., Constitutive Equations of High Temperature Flow Stress Prediction of Al-14Cu-7Ce Alloy, Material Science and Engineering A, 528 (2011), 12, pp. 4098-4103
  4. Marte, J. S., et al., Elevated Temperature Deformation Behavior of Discontinuous-Reinforced Titanium Aluminide Matrix Composites, Material Science and Engineering A, 346 (2003), l-2, pp. 292-301
  5. Li, W. X., et al., Hot Simulation of High Temperature Deformation Al-Fe-V-Si Alloy, Journal of Central South University of Technology (Natural Science), 31 (2000), l, pp. 56-59
  6. Wongi, W. A., Jonas, J. J., Aluminum Extrusion as a Thermally Activated Process, Transactions of the metallurgical Society of AIME, 242 (1968), 11, pp. 2271-2280
  7. Banic, M. S., et al., Prediction of Heat Generation in Rubber or Rubber-Metal Springs, Thermal Science, 16 (2012), Suppl. 2, pp. S527-S539
  8. Doric, J. Z., Klinar, I. J., Efficiency Characteristics of a New Quasi-Constant Volume Combustion Spark Ignition Engine, Thermal Science, 17 (2012), 1, pp. 119-133
  9. Zhang, Z. Q., et al., A Simulated Study on the Performance of Diesel Engine with Ethanol Diesel Blend Fuel, Thermal Science, 17 (2013), 1, pp. 205-216
  10. Zener, C., Hollomon, J. H., Effect of Strain Rate Upon Plastic Flow of Steels, Journal of Applied Physics, 15 (1944), 1, pp. 22-32
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