TY - GEN
T1 - Correlation of dynamic response with adiabatic shearing behavior in Ti-10V-2Fe-3Al alloy
AU - Ding, Qingwen
AU - Ren, Yu
AU - Tan, Chengwen
AU - Zhang, Jing
AU - Yu, Xiaodong
PY - 2011
Y1 - 2011
N2 - A Split Hopkinson Pressure Bar system was employed to investigate the compressive dynamic mechanical behaviors of Ti-10V-2Fe-3Al (Ti-1023) alloy with lamellar microstructure, over a broad strain rates ranging from 1500/s to 5100/s. The results reveal that the strain rate has a significant effect on the flow stress of Ti-1023 alloy, and there exists serious thermal softening as the strain rate exceeds 3200/s. The critical strain rate of fracture for this alloy is 2300/s. The microstructure examination indicated that adiabatic shear bands (ASBs) bifurcate more intensely with the increasing of strain rate. Micro-voids nucleate either in the ASB or interface between shear band and matrix bulk. Finally, fracture of this alloy proceeds through the nucleation, growth and coalescence of these voids and cracks along the ASBs.
AB - A Split Hopkinson Pressure Bar system was employed to investigate the compressive dynamic mechanical behaviors of Ti-10V-2Fe-3Al (Ti-1023) alloy with lamellar microstructure, over a broad strain rates ranging from 1500/s to 5100/s. The results reveal that the strain rate has a significant effect on the flow stress of Ti-1023 alloy, and there exists serious thermal softening as the strain rate exceeds 3200/s. The critical strain rate of fracture for this alloy is 2300/s. The microstructure examination indicated that adiabatic shear bands (ASBs) bifurcate more intensely with the increasing of strain rate. Micro-voids nucleate either in the ASB or interface between shear band and matrix bulk. Finally, fracture of this alloy proceeds through the nucleation, growth and coalescence of these voids and cracks along the ASBs.
KW - Adiabatic shear band
KW - Dynamic response
KW - Strain rate effect
KW - Ti-10V-2Fe-3Al alloy
UR - http://www.scopus.com/inward/record.url?scp=79960801289&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.284-286.1542
DO - 10.4028/www.scientific.net/AMR.284-286.1542
M3 - Conference contribution
AN - SCOPUS:79960801289
SN - 9783037851913
T3 - Advanced Materials Research
SP - 1542
EP - 1545
BT - Materials and Design
T2 - 2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011
Y2 - 29 July 2011 through 31 July 2011
ER -