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microstructure. The effects of heat treatment on the mechanical properties were discussed. Heat treatment provided a practical balance of strength, fracture toughness, and fatigue crack growth...Mechanical properties and microstructure of an α+β titanium alloy with high strength and fracture toughnessYU Yang, HUI Songxiao, YE Wenjun, and XIONG Baiqing State Key Laboratory for Fabrication......
with welded joints would inevitably involve the dynamic loading in service [3]. However, it is well known that the weld seams are often the weakest sites of the structures [4]. Fatigue fracture often occurs... in specimens during fatigue tests. Meanwhile, by analyzing their changes, it is likely to avoid unexpected fatigue fracture in practical engineering structures. References [1] KALATEHMOLLAEI E, MAHMOUDI......
Effect of grain size on fatigue cracking at twin boundaries in a CoCrFeMnNi high-entropy alloyA.G.Wang1,X.H.An1,J.Gu2,X.G.Wang3,L.L.Li3,4,W.L.Li1,M.Song2,Q.Q.Duan3,Z.F.Zhang3,X.Z.Liao11. School of Aerospace, Mechanical & Mechatronic Engineering, The University of Sydne0y2. State Key Laboratory of Powder Metallurgy, Central South University3. Materials Fatigue and Fracture Division, Institute......
of fatigue fracture During the test all the fatigue failure occurred at the stir zone of the FSSW AZ31 magnesium alloy sheet joints. The fatigue fractures and the crack propagation area characteristics.... Fig. 8 Fatigue failure mechanism of FSSW AZ31 alloy sheet joints Fig. 9 Fracture mechanics analysis of FSSW joint under action of cyclic force The bending forces, F1 and F3 are perpendicular......
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A practical model for efficient anti-fatigue design and selection of metallic materials: Ⅰ. Model building and fatigue strength predictionR.Liu,P.Zhang,Z.J.Zhang,B.Wang,Z.F.ZhangLaboratory of Fatigue and Fracture for Materials,Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences摘 要:The high cost......
fatigue properties and fatigue fracture surfaces of composite were investigated, respectively. The results show that the mound-like shape enhancing the roughness of composite is formed by SiC particulate.... 图6 15%SiCp/2009Al复合材料短裂纹扩展阶段疲劳断口 Fig.6 Fatigue fracture surface of small crack propagation region in 15%SiCp/2009Al composite: (a) Fracture surface of small crack propagation......
RELATIONSHIP BETWEEN J-INTEGRAL AND FRACTURE SURFACE AVERAGE PROFILE K.Tanaka1,S.F. Xue2,Y.G. Cao2 (1.Department of Mechanical Systems Engineering, Toyama Prefectural University, Toyama 939-0398... that led to the formation of cracks in materials, a novel method that only considered the fracture surfaces for determining the fracture toughness parameters of J-integral for plain strain was proposed......
Low-Cycle Fatigue and Creep-Fatigue Behaviors of a Second-Generation Nickel-Based Single-Crystal Superalloy at 760 °CJian Zhang1,Yuan-Yuan Guo1,Mai Zhang1,2,Zhen-Yu Yang1,Yu-Shi Luo11. Beijing Institute of Aeronautical Materials2. School of Materials Science and Engineering ,University of Science and Technology Beijing摘 要:Low-cycle fatigue(LCF......
oriented for prismatic slip. The β facet is in close correspondence to {110} or {112} plane with high Schmid factor. Based on the fracture observation and FIB-CS analysis, three classes of fatigue...Microstructural influences on the high cycle fatigue life dispersion and damage mechanism in a metastable β titanium alloyZhihong Wu,Hongchao Kou,Nana Chen,Zhixin Zhang,Fengming Qiang,Jiangkun Fan......
