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including bending, pre-forming and hydroforming were analyzed and discussed. Microstructure at the corner of the typical section was observed before and after the final hydroforming process. It is shown... severe local thinning. Key words: tube; hydroforming; magnesium alloy; cross section  ......
大约可以固溶3.6%~4.1%的金属Mg;由于MgSnY和Sn3Y5等一些高熔点化合物在高温下能够稳定存在,使得Mg-Sn-Y体系有可能成为一种潜在的新型耐热镁合金. 关键词:Mg-Sn-Y三元系;相平衡;等温截面;固溶度 中图分类号:TG 113.14 文献标识码:A Determination of isothermal section... ternary system at 500 ℃ were determined by XRD and SEM-EDS, thus the isothermal section of this ternary system was constructed. The results show that four intermetallic compounds exist in equilibrium......
and aluminum are soluble in the α-Mg solid solution, with which the compounds are in equilibrium. Key words: Mg-Zn-Al system; isothermal section; solubility; intermetallic compound 1 Introduction ZA series Mg..., as listed in Table 2. Fig. 2 BSE image (a) and XRD pattern (b) of Mg70Al15Zn15 alloy held at 300 ℃ for 720 h The α-Mg solvus and isothermal section at 300 ℃ can be determined from the data in Table 2......
NC code generation for laser assisted turn-mill of various type of clovers and square section membersCHOI Jun-young, LEE Choon-man(Department of Mechanical Design and Manufacturing Engineering... and square section members are necessary. But, these workpieces are impossible to be machined on conventional CNC lathe and to generate NC code with current CAM softwares. As a basic research for combining......
NUMERICAL SIMULATION STUDY ON DEFORMATION UNIFORMITY OF EQUAL CROSS SECTION LATERAL EXTRUSION J.L.Song1,Z.L.Chang1,N.H.Hao1 (1.Department of Materials Engineering, Taiyuan Heavy Machinery Institute, Taiyuan 030024, China) Abstract:Equal cross section lateral extrusion (ECSLE) is an effective method realizing pure shear deformation. The influence of friction factor on the deformation uniformity......
J. Cent. South Univ. Technol. (2011) 18: 1744-1749 DOI: 10.1007/s11771-011-0897-x Cellular automation model for analyzing capacity of branch road section WANG Ying-zi(王英姿)1, 2, LONG Dong-fang(龙东方... was put forward by introducing meeting behavior to reflect the relation between safe meeting speed and road width. The numerical simulation results depict several relation curves between road section......
J. Cent. South Univ. (2018) 25: 2831-2840 DOI: https://doi.org/10.1007/s11771-018-3956-8 Influence of enlarged section parameters on pressure transients of high-speed train passing through a tunnel... University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: The influence of enlarged section parameters on pressure transients of high-speed train passing through a tunnel......
和EPMA元素分布面分析 Fig. 15 Microstructures and EPMA mapping of elements of alloy 5 (Au16Pt20Sn64) 图16 Au-Pt-Sn 三元系 700 ℃等温截面 Fig. 16 Isothermal section of Au-Pt-Sn system at 700 ℃ 2) 由于Pt... and microstructural evolution of the (AuSn)eut-Pt interconnection[J]. Journal of Alloys and Compounds, 2016, 688: 388-398. Isothermal section of Au-Pt-Sn ternary system at 700 ℃ HU Jie-qiong1, 2, XIE Ming1, 2......
Effect of frictions on cross section quality of thin-walled tube NC bending YANG He(杨 合), GU Rui-jie(谷瑞杰), ZHAN Mei(詹 梅), LI Heng(李 恒) College of Materials Science and Engineering, Northwest Polytechnic University, Xi’an 710072, China Received 21 September 2005; accepted 16 March 2006 Abstract: The effect of frictions between dies and tube on the cross section quality of thin-walled tube......
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