TY - GEN
T1 - Damage and fracture mechanism of as-cast ti40 titanium alloy during hot compression
AU - Zhu, Yan Chun
AU - Zeng, Wei Dong
AU - Zhao, Yong Qing
AU - Peng, Wen Wen
PY - 2013
Y1 - 2013
N2 - The damage and fracture behavior was researched in hot compression of as-cast Ti40 titanium alloy with single β phase. The main fracture modes consist of 45° shear fracture, inner cracking and longitudinal cracking on free-surface, which occur at 850°C/10s-1, 900~950°C/10s-1 and other deformation conditions respectively. Moreover, 45° transgranular cracking is the combination result of adiabatic shear bands due to local temperature rise and shear stress, the inner intergranular cracking is induced by the microvoids near the adiabatic shear bands propagted along grain boundry under shear stress, the surface longitudinal intergranular cracking is caused by the vaporization of oxide and function of hoop tensile stress. In addition, the material undergoes the complex fracture which has to be avoided or decreased in hot processing for obtaining satisfactory properties.
AB - The damage and fracture behavior was researched in hot compression of as-cast Ti40 titanium alloy with single β phase. The main fracture modes consist of 45° shear fracture, inner cracking and longitudinal cracking on free-surface, which occur at 850°C/10s-1, 900~950°C/10s-1 and other deformation conditions respectively. Moreover, 45° transgranular cracking is the combination result of adiabatic shear bands due to local temperature rise and shear stress, the inner intergranular cracking is induced by the microvoids near the adiabatic shear bands propagted along grain boundry under shear stress, the surface longitudinal intergranular cracking is caused by the vaporization of oxide and function of hoop tensile stress. In addition, the material undergoes the complex fracture which has to be avoided or decreased in hot processing for obtaining satisfactory properties.
KW - As-cast Ti40 titanium alloy
KW - Damage and fracture mechanism
KW - Hot compression
UR - http://www.scopus.com/inward/record.url?scp=84884824920&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.750-752.721
DO - 10.4028/www.scientific.net/AMR.750-752.721
M3 - 会议稿件
AN - SCOPUS:84884824920
SN - 9783037857632
T3 - Advanced Materials Research
SP - 721
EP - 724
BT - Advanced Engineering Materials III
T2 - 3rd International Conference on Advanced Engineering Materials and Technology, AEMT 2013
Y2 - 11 May 2013 through 12 May 2013
ER -