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shown in Fig. 1, a sheet is subjected to tension and subsequent compression when the roller approaches. The limit strain before failure is called the fracture limit. Ductile damage criteria could... locus in ductile fracture criteria [18]. The hydrostatic stress σh and are both the function of the linear strain ratio and the major stress. Then the stress triaxiality is the function......
New ductile laminate structure of Ti-alloy/Ti-based metallic glass composite with high specific strengthD.Li,Z.W.Zhu,A.M.Wang,H.M.Fu,H.Li,H.W.Zhang,H.F.ZhangShenyang National Laboratory for Materials...) was prepared by melting a preform of alternate stack-up foils in the high vacuum atmosphere. The composite demonstrates a good combination of yield strength(1618 MPa), plasticity(4.3%) and specific fracture......
The Morphology of Rolling Contact Fatigue Fracture of Hardened Steels王绪,章守华,崔佩庸摘 要:<正> Rolling Contact Fatigue(RCF) is a cumulativedamage phenomenon when metals are subjectedto repeated contact stresses. The fomationof pitting on the contact surface is the resultof the rolling contact fatigue. The morphologiesof rolling contact fatigue fracture......
. But in intergranular ductile fracture, the fracture strain of soft orientation may be smaller than that of hard orientation due to the roles of deformation localization. Key words: precipitation free zone (PFZ... the mechanisms of ductile fracture, and the extent of retardation was depended on the crystal orientation. Though some research has been done to study the crack propagation by CPFEM or XFEM, little work has......
medium temperature distribution on sheet fracture location was studied and the distributions of fracture factor at different temperatures were obtained by using ductile fracture criterion. The results show... investigated at various forming temperatures by using ductile fracture criterion. And the numerical simulations of viscous pressure forming conical taper part at warm temperature were carried out......
Tensile Behavior of NiAL-9Mo Eutectic Alloy around Brittle to Ductile Transition TemperatureWeili REN, Jianting GUO, Gusong LI Jiyang ZHOUInstitute of Metal Research, Chinese Academy of Sciences... to ductiletransition temperature(BDTT) under the same condition. It is noticed that the BDTT of as-cast NiAl-9Mo is moredependent on strain rate than that of HIPed one. The brittle to ductile......
; 文献标志码:A Ductile fracture behavior of 6xxx aluminum alloy thin-walled components of automobile YE Tuo1, WANG Guan1, YAO Zai-qi2, LI Luo-xing1 (1.... In order to estimate the fracture behavior of aluminum alloy during the deformation, Crockroft- Latham ductile damage criterion was incorporated into the numerical simulation. The calculated ductile......
of the specimens treated by light RE. With the decrease of cooling rate, the mechanical properties of two specimens decreased, and the fracture morphology changed from ductile fracture to brittle fracture...Effect of Ce-Mg-Si and Y-Mg-Si nodulizers on the microstructures and mechanical properties of heavy section ductile iron郭二军,宋良,王丽萍Department of Materials Science and Engineering, Harbin University......
of the specimens treated by light RE. With the decrease of cooling rate, the mechanical properties of two specimens decreased, and the fracture morphology changed from ductile fracture to brittle fracture...Effect of Ce-Mg-Si and Y-Mg-Si nodulizers on the microstructures and mechanical properties of heavy section ductile iron郭二军,宋良,王丽萍Department of Materials Science and Engineering, Harbin University......
. As the strain rate increases, the fracture mode changes from ductile, semi-ductile to brittle mode. The complementary strain energy almost sustains a constant at any strain rate. The density of surface..., which demonstrates that the polymeric material at high strain rate is easier to fracture than that at low strain rate. As the strain rate increases, the fracture manner of polymer changes from ductile......