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model of Hunt. Key words:Ti-44Al alloy; Directional solidification; columnar to equiaxed transition (CET); Numerical simulation; [全文内容正在添加中] ... solidification model was applied to simulate the columnar to equiaxed transition (CET) during directional solidification of Ti-44Al alloy. The simulation results show that the solutal interactions from growing......
Trans. Nonferrous Met. Soc. China 22(2012) 404-410 Effect of configuration on magnetic field in cold crucible using for continuous melting and directional solidification CHEN Rui-run, YANG Jie-ren... 12 December 2011 Abstract: To improve the power efficiency and optimize the configuration of cold crucible using for continuous melting and directional solidification (DS), based on experimental......
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temperature gradient melt solidification [J]. Sci Tech Advan Mater, 1997, 2: 193-199. [5] NO?L N, JAMGOTCHIAN H, BILLIA B. Influence of grain boundaries and natural convection on microstructure... Competitive growth of high purity aluminum grains in directional solidification ZHANG Jiao(张 佼)1, SHU Da(疏 达)1, WANG De-lin(王德林)2, SUN Bao-de(孙宝德)1, CHEN Gang(陈 刚)3 1. State Key Laboratory......
NUMERICAL INVESTIGATION OF STRAIGHT-LINE LASER FORMING UNDER THE TEMPERATURE GRADIENT MECHANISM Z.Q. Yao1,J. Hu1,H. Shen1,Y.J. Shi1 (1.School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China) Abstract:Laser forming is a new flexible and dieless forming technique. To achieve the high accuracy forming, the temperature gradient mechanism (TGM) is studied......
Numerical simulation of temperature field during gas preheating and start-up of drained aluminum reduction cell ZHOU Ping(周 萍)1, WANG Zhi-qi(王志奇)2, ZHOU Nai-jun(周乃君)1 1. School of Energy... of numerical simulation was applied to investigate gas preheating and start-up process in a drained aluminum reduction cell. The transient temperature and velocity fields of a 156 kA drained aluminum......
Processing Technology, 2008, 208(1/2/3): 1-8. [15] WANG Kuang-fei, LI Bang-sheng, MI Guo-fa, GUO Jing-jie, FU Heng-zhi. Modeling of cell/dendrite transition during the directional solidification of Ti-Al...J. Cent. South Univ. Technol. (2011) 18: 23-28 DOI: 10.1007/s11771-011-0653-2 Simulation of stray grain formation during unidirectional solidification of IN738LC superalloy LI Xiang-mei(李响妹)1......
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extrusion through the angular channel. The simulation confirms that a strong strain gradient in the sample material is imposed by the ECAP. Key words: pure aluminum; ECAP; grain refinement; strain... grains is obtained during ECAP. 3 Numerical simulation of ECAP process 3.1 Numerical model It is difficult to directly measure strain and its distribution in the sample during ECAP process. However......
Numerical simulation of recalescence of 3-dimensional isothermal solidification for binary alloy using phase-field approach ZHU Chang-sheng(朱昌盛)1, 2, XIAO Rong-zhen(肖荣振)2, WANG Zhi-ping...) A accelerated arithmetic algorithm of the dynamic computing regions was designed, and 3D numerical simulation of isothermal solidification for a binary alloy was implemented. The evolution......