TY - JOUR
TI - A constitutive model for particulate-reinforced titanium matrix composites subjected to high strain rates and high temperatures
AU - Song Wei-Dong
AU - Ning Jian-Guo
AU - Mao Xiao-Nan
AU - Li Jian-Qiao
JN - Thermal Science
PY - 2013
VL - 17
IS - 5
SP - 1361
EP - 1367
PT - Article
AB - 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.