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magnesium alloy and load on fatigue crack growth rate were investigated under different directions. The results show that the ultimate strength has little difference, while the yield strength diverges under various directions, and the difference of fatigue crack growth behavior attributes to the yield strength, which disappears after unification. Under identical ?K, the fatigue crack growth rate......
(CVI). The bending fatigue behavior of the infiltrated C/C composites was tested under two different stress levels. The residual strength and modulus of all fatigued samples were tested to investigate the effect of maximum stress level on fatigue behavior of C/C composites. The microstructure and damage mechanism were also investigated. The results showed that the residual strength and modulus......
New application of SMAT in improving fatigue strength of 3D laser-printed Ti6Al4V金国College of Material Science and Chemical Engineering,Harbin Engineering University摘 要:<正>As a rapidly emerging additive manufacturing technique in recent years,3D laser printing technique has the significant advantages of high dimensional accuracy and high density......
were observed by optical microscopy and scanning electron microscopy. The results indicate that 2524 alloy shows superior fatigue properties. The fatigue strength is up to 80% of the yield strength... Fatigue, 2001, 23: s265?s276. [17] ZHAI T, JIANG X P, JIANG X P, LI J X, GARRATT M D, BRAY G H. The grain boundary geometry for optimum resistance to growth of short fatigue cracks in high strength......
Corrosion and fatigue in micro-sized Ni cantilever beams ZHANG Qiang(张强)1, GUO Xing-peng(郭兴蓬)1, LIU Yu(刘昱)1, DAI Neng-li(戴能利)2, LU Pei-xiang(陆培祥)2 1. Department of Chemistry and Chemical... noise and a newly developed fatigue testing method. The results show that the micro-sized specimens exhibit general corrosion behavior under the studied corrosion condition, whereas the ordinary-sized......
was researched and used in fatigue strength experiment of new car bodies. The parameters related to car body alternating aerodynamic load fatigue test, such as loading method, loading time, pressure value... properties under alternating aerodynamic load. And it is suggested that China’s new car body should take fatigue strength test according to the actual alternating aerodynamic load in the operation. Key......
Effects of γ-Ray Irradiation on the Fatigue Strength, Thermal Conductivities and Thermal Stabilities of the Glass Fibres/Epoxy Resins CompositesLi-Fang Zheng1,Lu-Ning Wang2,Zhao-Zhong Wang1,Li Wang11... irradiation on the fatigue strength, thermal conductivities and thermal stabilities of the glass fibres/epoxy resins composites were investigated. And a two-parameter fatigue life model was established......
cooling process were produced in domestic steel plant. The mechanical properties, HV5 hardness, microstructure for weldment, strength and fatigue strength of welding joint were researched by using metallographic microscopy, vickers hardness tester, flash-butt welding, fatigue testing machine and mechanical properties testing. The results show that strength changes between weldment and base metal......
Cyclic deformation behaviors of Ti-46Al-2Cr-2Nb-0.15B alloy during thermo-mechanical fatigue tests XIANG Hong-fu(项宏福)1, DAI An-lun(戴安伦)1, WANG Ji-heng(王冀恒)1, LI Hui(李 惠)1, YANG Rui(杨 锐)2 1... 110016, China Received 23 October 2009; accepted 15 August 2010 Abstract: Thermo-mechanical fatigue tests were carried out on the gamma-TiAl alloy in the temperature range of 500-800 °C under mechanical......
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