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-scale rib-web titanium alloy component with low cost and short cycle. The beveling transition pattern is well used for variable-thickness region of billet (VTRB) due to its simple and ample range... component; isothermal local loading; unequal-thickness billet; variable-thickness region of billet; beveling transition pattern; titanium alloy 1 Introduction Isothermal local loading method integrating......
μm. From region 1 to region 5, the grain size of part is very fine. It is demonstrated that new SIMA is a good method for preparing semisolid billet of AZ80 magnesium alloy. Net-shape, good surface... Preparation and thixoforging of semisolid billet of AZ80 magnesium alloy JIANG Ju-fu(姜巨福)1, 2, WANG Ying(王 迎)3, 4, QU Jian-jun(曲建俊)2, DU Zhi-ming(杜之明)1, LUO Shou-jing(罗守靖)1 1. School......
J. Cent. South Univ. (2016) 23: 1515-1524 DOI: 10.1007/s11771-016-3203-0 Numerical simulation on boiling heat transfer of evaporation cooling in a billet reheating furnace FENG Ming-jie(冯明杰), WANG... South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: The boiling heat transfer of evaporation cooling in a billet reheating furnace was simulated. The results indicate......
New method of direct chill casting of Al-6Si-3Cu-Mg semisolid billet by annulus electromagnetic stirring TANG Meng-ou(汤孟欧), XU Jun(徐 骏), ZHANG Zhi-feng(张志峰), BAI Yue-long(白月龙) General Research..., reducing the temperature gradient as well as shallowing liquid sump depth. The microstructure obtained by A-EMDC is globular or rosette-like, and the microstructure is homogeneous in the billet......
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power and uniform strain distribution along the extruded products by restricting the deformation zone in a fixed region [4]. In this method deformable billet is embedded in a mandrel and the material... shows the punch, mandrel, die and billet. As can be seen in Fig. 1, deformable billet flows in a particular region which is stable, thus the more uniform strain distribution is achievable......
J. Cent. South Univ. Technol. (2008) 15: 309-312 DOI: 10.1007/s11771-008-0058-z Spray deposition for making large size billet with swing atomizer LI Jian-ping(李建平), LIU Tao(刘 涛), TANG Qing-yun...? and 60 mm, respectively, large size billets with fine texture and diameter of 500 mm can be produced. Key words: spray deposition; large size billet; atomizer; swing angle; eccentric offset ......
J. Cent. South Univ. (2012) 19: 2634-2642 DOI: 10.1007/s11771-012-1321-x Assessment of heavy metals in sediment cores from Xiangjiang River, Chang-Zhu-Tan region, Hunan Province, China LONG... two core sediments (C1 and C2) of Xiangjiang River, Chang-Zhu-Tan region, Hunan Province, China. The heavy metal contents are relatively higher, especially for the surface or near the surface layers......
Preparation of AZ91D magnesium alloy semi-solid billet by new strain induced melt activated method JIANG Ju-fu(姜巨福)1, 2, LUO Shou-jing(罗守靖)1, ZOU Jing-xiang(邹经湘)2 1. School of Materials Science...; accepted 6 April 2006 Abstract:New strain induced melt activated (new SIMA) method for preparing AZ91D magnesium alloy semi-solid billet is introduced by applying equal channel angular extrusion......
Numerical simulation of solidification process of Sn-3.5%Pb hollow billet with stirring magnetic field ZHANG Qi(张 琦), WANG Tong-min(王同敏), LI Ting-ju(李廷举), JIN Jun-ze(金俊泽) State Key Laboratory...: In order to study the effect of the stirring flow on the grain diameter and solute concentration of hollow billet, the couple model of the two-phase solidification and electromagnetic field was built......
