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J. Cent. South Univ. (2020) 27: 372-380 DOI: https://doi.org/10.1007/s11771-020-4302-5 Simulation and experimental study of 7A09 aluminum alloy milling under double liquid quenching LUO Heng(罗恒)1... of double liquid quenching on the cutting performance of the 7A09 aluminum alloy, quasi-static compression and dynamic impact tests were carried out on the 7A09 aluminum alloy after double liquid quenching......
Simulation of crack coalescence mechanism underneath single and double disc cutters by higher order displacement discontinuity methodMohammad Fatehi Marji(1Faculty of Mining & Metallurgy, Yazd... and double type discs are simulated by the proposed numerical method. The main purposes of the present modeling are to simulate the chip formation process of indented rocks by single and double discs......
Effect of post-weld heat treatment on microstructure and properties of Ti-23Al-17Nb alloy laser beam welding joints WANG Guo-qing(王国庆), WU Ai-ping(吴爱萍), ZHAO Yue(赵 玥), ZOU Gui-sheng(邹贵生), CHEN...; Abstract: The mechanical properties of Ti-23Al-17Nb (mole fraction, %) laser beam welding alloy joint at room temperature are comparable to that of the base materials. However......
A yttrium-containing high-temperature titanium alloy additively manufactured by selective electron beam meltingLU Sheng-lu(逯圣路)1, 2, 3, TANG Hui-ping(汤慧萍)2, M. Qian(马前)2, 4, HONG Quan(洪权)2, ZENG Li... alloy (Ti-6Al-2.7Sn-4Zr-0.4Mo-0.45Si-0.1Y, mass fraction, %) has been additively manufactured using selective electron beam melting (SEBM). The resulting microstructure and textures were studied using......
Article ID: 1003-6326(2005)05-0978-07 Improvement of wear resistance of AZ31 and AZ91HP by high current pulsed electron beam treatment GAO Bo(高 波)1, 2, HAO Sheng-zhi(郝胜智)2, DONG Chuang(董... by a high current pulsed electron beam(HCPEB). The results show that the cross-sectional microhardness of treated samples increases not only in the heat affected zone(HAZ), but also beyond HAZ, reaching over......
J. Cent. South Univ. (2019) 26: 241-255 DOI: https://doi.org/10.1007/s11771-019-3997-7 Pseudo-static analysis of cantilever retaining walls using upper bound limit analysis approach Asadollah... Institute, Tehran, Iran Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: Given the extensive utilization of cantilever retaining walls......
of 1064 nm; fluences of 0.4-2.1 kJ/cm2) was irradiated on a sacrificial absorption layer with copper coating. The focused laser beam induced plasma between the semi-transparent donor slide and the sacrificial layer, causing a shock wave. The shock wave pressure pushed the Cu layer and transferred material to deposit a bump on substrate. A beam-shaper was used to produce uniform pressure......
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Electron beam welding of Ti-15-3 titanium alloy to 304 stainless steel with copper interlayer sheet WANG Ting(王 廷), ZHANG Bing-gang(张秉刚), CHEN Guo-qing(陈国庆), FENG Ji-cai(冯吉才), TANG Qi(唐 奇) State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology,Harbin 150001, China Received 27 November 2009; accepted 22 March 2010 Abstract: Electron beam welding......
J. Cent. South Univ. (2021) 28: 418-428 DOI: https://doi.org/10.1007/s11771-021-4612-2 Analysis of axial force of double circular arc helical gear hydraulic pump and design of its balancing device... produced in the working process of double arc helical gear hydraulic pump, the theory of differential equation of curve and curved surface was utilized so that the calculation formula of axial force......
