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-shape manufacturing, which was discovered in early 1971 by SPENCER[5]. The most common process routes are the thixoforming, where the prefabricated billet is reheated to the semi solid state prior... Semi-solid processing of hypereutectic A390 alloys using novel rheoforming process M. TEBIB1, J. B. MORIN1, F. AJERSCH2, X. GRANT CHEN1 1. Université du Québec à Chicoutimi, Chicoutimi, QC, G7H......
Lett, 1984, 53: 2110-2113. [10] ZHAO Y H, CHEN Z, WANG Y X. Atomic-scale computer simulation for early precipitation process of Ni75Al10V15 alloy[J]. Progress in Natural Science, 2004, 14(3): 241-246... Numerical simulation for thermal flow filling process of casting CHEN Ye(陈 晔)1, ZHAO Yu-hong(赵宇宏)2, HOU Hua(侯 华)1 1. College of Materials Science and Engineering, North University of China......
, the effect of β precipitation on the IF properties of AZ91 alloy is not clear. Accordingly, the AZ91 alloy was investigated in order to give a clear physical view of the effect of precipitation process... selected based on Ref.[5] where TANG investigated the effect of heat-treatment on the morphology of AZ80 alloy which has the same precipitation process as AZ91 alloy. The measurement of IF was carried out......
. The process of Al removal used by Allied Chemical Corporation involves the removal of dissolved aluminates by seed precipitation [9]. However, the overall residence time in the series of vessels ordinarily.... Aluminates in the presence of sodium chromate during the carbonization process were described in this section. Before the precipitation point was achieved, fine Al(OH)3 particles readily redissolved......
Recovering REEs from NdFeB wastes with high purity and efficiency by leaching and selective precipitation process with modified agentsYilan Tian1,Zhongwu Liu1,Guoqing Zhang21. School of Materials... leaching and precipitation processes were optimized individually. For leaching process, the effects of two different chelating agents, the concentrations of leaching agent, chelating agent......
Recovering REEs from NdFeB wastes with high purity and efficiency by leaching and selective precipitation process with modified agentsYilan Tian1,Zhongwu Liu1,Guoqing Zhang21. School of Materials... leaching and precipitation processes were optimized individually. For leaching process, the effects of two different chelating agents, the concentrations of leaching agent, chelating agent......
Thermodynamic analysis on preparation of fibrous NiO precursor powders with oxalate precipitation process ZHAN Jing(湛 菁), ZHANG Chuan-fu(张传福), LI Tie-jing(李铁晶), WU Jian-hui(邬建辉) (School... process. The principal approaches available for ultrafine NiO particles production include gas-phase chemical reaction, spray pyrolysis and wet-chemical precipitation. Gas-phase chemical reaction......
hydration process and increasing hydration products at early age.In the case of appropriate proportion of mortar,the inclusion of hydroxy propyl methyl cellulose,dispersible polypropylene fiber and organic...Ultra High Early Strength Self-compacting Mortar Based on Sulfoaluminate Cement and Silica Fume朱艳超,马保国,LI Xiangguo,HU DiState Key Laboratory of Silicate Materials for Architectures,Wuhan University......
In-situ Observation of Dark Phase Precipitation during Heating and Soaking Process of a High Nickel Steel吴素君1,SUN Guojin1,MA Qingshen21. School of Materials Science and Engineering, Beihang University2. Shougang Research Institute of Technology摘 要:In-situ observation of microstructural evolution during heating and soaking process was carried out......
in electrochemical cycling process. Liu et al[6] also found that 25% and 20% Al-substituted αNi(OH)2 prepared by chemical precipitation method were stable. 3.4 Effect of molar ratio of urea to (Ni+Al) ions... precipitation method. The effect of reaction temperature, reaction time, Ni and Al ions concentration and reagent ratio on the physico-chemical properties and electrochemical performance of Al......
