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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... Abstract: The influence of casting parameters on stray grain formation of a unidirectionally solidified superalloy IN738LC casting with three platforms was investigated by using a 3D cellular......
J. Cent. South Univ. (2020) 27: 3269-3277 DOI: https://doi.org/10.1007/s11771-020-4545-1 Formation kinetics and transition mechanism of CaO·SiO2 in low-calcium system during high-temperature..., formation kinetics and micro-morphology of CaO·SiO2 during high-temperature sintering process were studied in low-calcium system by XRD, FT-IR, Raman and SEM-EDS methods. When the molar ratio of CaCO3......
STUDY ON THE FORMATION AND STRUCTURE OF NONCRYSTALLINE MATERIALS IN THE Li2O-P2O5-V2O5 SYSTEM崔万秋,阮立坚摘 要:<正> The noncrystalline-forming region in theLi2O-P2O5-V2O5 system is determined under ourexperiment condition.The densities andtransformation temperatures of the samples aremeasured.IR and Raman spectra are used tostudy the noncrystalline......
Mineralogical and chemical compositions of glauconite and glauconitic rocks and assumption for the formation of the minerals in the Kyzyltokoy basin, KyrgyzstanTursunai A.Bektemirova1,2,Hu Ruizhong11... compositions,deposition environment and mechanism of formation of sediments of Kyzyltokoy basin.By an interpretation of formation,an environment of sedimentation of a basin was separated into three general......
Models for the Formation and Dispersion of Potassium-filled Bubbles in Doped Tungsten WireLiu Xinyu;Zuo Tieyong Department of Materials Science and Engineering,Central South University,Changsha..., were put for-ward. The relationship between basic parameters of potassium-filled bubble rows and the geometry size of potassium-filled tubesand the condition under which a potassium-filled tube can......
Dissolubility of Hydroxyapatlte Powder under Hydrothermal Condition张宏泉摘 要:The dissolubility of hydroxyapatite(HA) in the hydrothermal solution... system under the hydrothermal condition than that under the normal temperature-pressure.关键词:......
of salt ions in bauxite residue is one of the major issues to stimulate soil formation to support plant growth. 21 residue samples were collected and the related parameters including exchangeable cations... formation in bauxite residue. Key words: bauxite residue; bauxite residue disposal area; salt; saline-alkali soil; soil formation in bauxite residue Cite this article as: XUE Sheng-guo, WANG Qiong-li......
formation and enlarges the primary columnar dendrite arm spacing, while the situation for precooling of substrate is opposite. Under the specific processing conditions, the critical condition...Effect of substrate preset temperature on crystal growth and microstructure formation in laser powder deposition of single-crystal superalloyZhaoyang Liu1,2,Zi Wang31. College of Innovation......
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which continuously provided Ca2+ to inhibit dissolution of combined alkali. Furthermore, phosphogypsum promoted formation of macroaggregate structure, increased Ca2+, decreased Na+ and Al3+ on the surface of bauxite residue significantly, ultimately promoting soil formation in bauxite residue. Key words: bauxite residue; alkaline regulation; free alkali; phosphogypsum amendment; soil formation......
