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of ADI fatigue limit.ADI fatigue strength was gradually reduced with increasing the time of test and was reduced by 50% in wet condition at 107 cycles compared with the fatigue limit in dry condition.The fatigue strength variation of ferritic ductile iron in wet condition was similar to that of ADI.The ferritic ductile iron,however,has better corrosion resistance so that the fatigue strength......
Low cycle fatigue behavior of high strength gun steelsMaoqiu Wang;Han Dong;Qi Wang;Changgang Fan Division of Structural Materials, Central Iron & Steel Research Institute, Beijing 100081, China摘 要:<正> The low cycle fatigue (LCF) behavior of two high strength steels, with norminal chemical compositions (mass fraction, %)of 0.40C......
carbonitriding with a nitrogen content of more than 0.6 mass%.We performed a drivetrain durability test on an automatic transmission component designed to have excellent contact fatigue strength and a tooth root bending impact and fatigue strength. We found that the developed steel that was carbonitrided with a content of about 0.9 mass%, and then shot peened hard, has a pitting life of roughly 4.5 times......
J. Cent. South Univ. Technol. (2008) 15: 95-99 DOI: 10.1007/s11771-008-0019-6 Fatigue properties analysis of cracked rock based on fracture evolution process ZHANG Ping(张 平)1, 2... made of sandstone-like modeling material contained three pre-existing intermittent cracks with different geometrical distributions. The experimental results indicate that the fatigue deformation limit......
:The fatigue properties of nickel-base Alloy 718 with fine- and grain-coarse grains were investigated. In the fine-grain alloy, the fatigue strength normalized by the tensile strengtn was 0.51 at 107 cycles. In contrast, the fatigue strength of the coarse-grain alloy was 0.32 at the same cycles, although the fatigue strengths in the range from 103to 105 cycles are the same for both alloys. The fracture......
texture (B or T) exhibit lower fatigue strength compared with the mixed texture (B/T). The sheet possessing basal texture exhibits isotropy and its elastic modulus and yield strength are lower than those.... The alloy sheet, which possesses mixed texture (B/T) exhibits higher fatigue strength compared with single type texture (B or T). 2 Experimental 2.1 Material The material used in the present work was ply......
Ultra-high cycle fatigue behavior of high strength steel with carbide-free bainite/martensite complex microstructureXue-xia Xu, Yang Yu, Wen-long Cui, Bing-zhe Bai, and Jia-lin Gu Laboratory... of a novel high strength steel with carbide-free bainite/martensite (CFB/M) complex microstructure was studied. The ultra-high cycle fatigue properties were measured by ultrasonic fatigue testing equipment......
Fatigue Induced Alteration of the Superficial Strength Properties of 2024 Aluminum AlloySp.G. Pantelakis2,A.N. Chamos22. Laboratory of Technology and Strength of Materials, Department of Mechanical Engineering & Aeronautics, Univer-sity of Patras摘 要:Aircraft aluminum alloy 2024 T3 specimens have been subjected to constant amplitude fatigue loading at R......
