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线锯弯曲疲劳试验机构示意图 Fig. 8 Structure for diamond wire saw fatigue bending test 图9 线锯表面弯曲疲劳裂纹发生及生长 Fig. 9 Fatigue bending crack initiation and growth on surface of diamond wire saw 式中:为...刚石钎焊界面弯曲疲劳裂纹发生及生长 Fig. 10 Fatigue bending crack initiation and growth on interface of brazed diamond grain 3 结论 1) Cu-Sn-Ti钎料经过熔化结晶过程,钎料合金内部形成了成分发生偏析的组织,组织以Cu,β-(Cu, Sn)为主相.Ti元素在金刚石颗粒钎焊界面处偏析,其含量......
Role of Pits in Corrosion Fatigue of Offshore Structural Steel藏启山,周向阳,刘慷,柯伟摘 要:<正> From the corrosion fatigue test under intermit-tent wetting condition for offshore structural steelof A537 cl.l and data analysis,some results associ-ated with the role of pits in fatigue process havebeen discussed.关键词:......
Thermal fatigue behavior of K125L superalloyLi-Kui Ning1,Zhi Zheng1,Song Tang1,Jian Tong1,Hui-Si Ji11. Institute of Metal Research, Chinese Academy of Sciences摘 要:The thermal fatigue behavior of K125 L superalloy at the peak temperature of 1,050 °C was investigated by optical microscope(OM), X-ray diffraction(XRD), and scanning electron microscope(SEM......
Fracture Loci in Sheet Metal Forming: A ReviewM.Beatriz Silva1,Kerim Isik2,A.Erman Tekkaya2,Paulo A.F.Martins11. IDMEC, Instituto Superior Técnico, Universidade de Lisboa2. Institute of Forming Technology and Lightweight Construction, Technical University of Dortmund摘 要:Fracture in sheet metal forming usually occurs as ductile fracture, rarely......
A NOVEL PARAMETER FOR EVALUATING THE FATIGUE CRACK GROWTH RATE IN CARBON STEELS H.Nisitani1,S.Q.Zhu2,N.KAWAGOISHI3,X.S.WANG2 (1.Faculty of Engineering,Kyushu Sangyuo University,Fukuoka,812,Japan... for evaluating the fatigue crack growth rate in carbonsteels.Fatigue crack propagation tests of an annealed 0.42% carbon steel were carriedout under different conditions to investigate the relationship between......
fabricated using gas tungsten arc welding (GTAW), electron beam welding (EBW) and friction stir welding (FSW) processes. The effects of three welding processes on the tensile, fatigue and corrosion behaviour were studied. Microstructure analysis was carried out using optical and electron microscopes. The results show that the FSW joints exhibit superior tensile and fatigue properties compared to EBW......
Fracture toughness and fracture behavior of SA508-Ⅲ steel at different temperaturesJia-hua Liu,Lei Wang,Yang Liu,Xiu Song,Jiong Luo,Dan YuanKey Laboratory for Anisotropy and Texture of Materials, Northeastern University摘 要:The fracture toughness of SA508-III steel was studied in the temperature range from room temperature to 320°C using the J-integral......
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Plastic anisotropy and fracture behavior of AZ31 magnesium alloy LIU Pei 1, XIN Yun-chang1, LIU Qing1, 2 1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044... of texture and abnormal large grains on the plastic anisotropy and fracture behavior of hot-rolled AZ31 magnesium alloy were investigated. Uniaxial tensile deformation behaviors of samples with tensile axis......
Trans. Nonferrous Met. Soc. China 28(2018) 2440-2448 Microstructure-fracture toughness relationships and toughening mechanism of TC21 titanium alloy with lamellar microstructure Zhi-feng SHI1,2, Hong... 2017; accepted 17 May 2018 Abstract: The independent influence of microstructural features on fracture toughness of TC21 alloy with lamellar microstructure was investigated. Triple heat treatments......
