TY - JOUR
T1 - High temperature tensile damage behavior of ZrB2-based composite
T2 - Experimental investigation and modeling
AU - Lasarack, Somesouk
AU - Wang, Lingling
AU - Wang, Lin
AU - Liang, Jun
AU - Kong, Dewen
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/6/15
Y1 - 2018/6/15
N2 - The uniaxial tensile behaviors of ZrB2-SiC-graphite composites at the room temperature of 1400 °C, 1600 °C and 1800 °C, were investigated respectively, in which the tensile direction is parallel to the basic plane of the graphite. The tensile deformation and damage behavior were discussed through high temperature tensile experiments and the prediction model. Results showed that ZrB2-SiC-graphite composites displayed an evident nonlinear tensile behavior with the increase of temperature. Tensile deformation increased with the increase of temperature, and the maximum deformation at 1800 °C was almost seven times than the value at the room temperature. Furthermore, a damaged high temperature constitutive model was applied to describe the nonlinear condition, and to predict tensile stress-strain relationship and tensile deformation and strain. Numerical tensile deformation was in good accordance with the experimental result, which illustrated the applicability of this model for tensile behavior in the condition of high temperature. Additionally, numerical results showed that the value and range of mechanical damage increased with the increase of temperatures, and a rapid increase above the brittle-ductile transition temperature.
AB - The uniaxial tensile behaviors of ZrB2-SiC-graphite composites at the room temperature of 1400 °C, 1600 °C and 1800 °C, were investigated respectively, in which the tensile direction is parallel to the basic plane of the graphite. The tensile deformation and damage behavior were discussed through high temperature tensile experiments and the prediction model. Results showed that ZrB2-SiC-graphite composites displayed an evident nonlinear tensile behavior with the increase of temperature. Tensile deformation increased with the increase of temperature, and the maximum deformation at 1800 °C was almost seven times than the value at the room temperature. Furthermore, a damaged high temperature constitutive model was applied to describe the nonlinear condition, and to predict tensile stress-strain relationship and tensile deformation and strain. Numerical tensile deformation was in good accordance with the experimental result, which illustrated the applicability of this model for tensile behavior in the condition of high temperature. Additionally, numerical results showed that the value and range of mechanical damage increased with the increase of temperatures, and a rapid increase above the brittle-ductile transition temperature.
KW - Deformation
KW - High temperature
KW - Mechanical damage
KW - ZrB-SiC-graphite composites
UR - http://www.scopus.com/inward/record.url?scp=85044454845&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.03.234
DO - 10.1016/j.jallcom.2018.03.234
M3 - Article
AN - SCOPUS:85044454845
SN - 0925-8388
VL - 749
SP - 113
EP - 120
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -