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85 μm to 30 μm, decreases the precipitation temperature of Ω phase. Moreover, the addition of Yb into Al-Cu-Mg-Ag alloy decreases the precipitates size, and improves the density and the thermal stability of Ω phase between 200 ℃ and 300 ℃. Key words: aluminum alloy; Yb addition; precipitation; microstructure; mechanical properties  ......
Precipitation of ordered α2 phase in a near-α titanium alloy with duplex microstructureJun Zhang and Dong Li1) Shenyang University, Shenyang 110044, China2) Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China (Received 2001-11-14)摘 要:The precipitation of ordered α2 phase in a near-α Ti-6.3 Al-4.8Sn-2.0Zr-1 .0Mo-0.34Si-0.9Nd......
was strengthened by β-Mg17Al12 precipitation, and the morphology of β phase can be easily changed and controlled by implementing different heat treatments[3-5]. The internal friction (IF) of AZ91 alloy has just... of graininess β phase distributing along the grain boundaries and abundant rhombus-plate β phase symmetrically distributing in the grains, both of which are the products of continuous precipitation. Whereas......
Preparation of Al(OH)3 by ion membrane electrolysis and precipitation of sodium aluminate solution with seeds LI Yuan-gao(李元高)1, 2, CHEN Qi-yuan(陈启元)2, WANG Song-sen(王松森)2, YIN Zhou-lan(尹周澜)2...; Abstract: The preparation of Al(OH)3 by the ion exchange membrane electrolysis followed by the precipitation of sodium aluminate solution with seeds......
Cerium dioxide with large particle size prepared by continuous precipitation WANG Mitang1,LI Mei1,WU Jinxiu1,LIU Zhaogang1,HU Yanhong1 (1.School of Material and Metallurgy,Inner Mongolia University... applications. However, control of particle size is still a challenge in materials synthesis. Therefore, continuous precipitation of cerium oxalate (precursor of ceria) was carded out at different operational......
Selective enrichment of TiO2 and precipitation behavior of perovskite phase in titania bearing slag WANG Ming-yu(王明玉)1, ZHANG Lin-nan(张林楠)2, ZHANG Li(张 力)2, SUI Zhi-tong(隋智通)2, TU Gan-feng(涂赣峰)2... the effect of CaO, MnO and Fe2O3 as additive on the precipitation temperature of perovskite phase. The effects of steel slag addition to titania bearing slag on viscosity and crystallization behavior......
concentration of bismuth ion and the instantaneous concentration in aqueouss, respectively. 2.3 Precipitation stripping After the extraction, the Bi(III)-loaded organic phase was separated and scrubbed from the aqueous phase and then mixed with an equal volume of 20% oxalic acid solution. The precipitation was maintained at 293 K for 30 min and thus, white precipitation powders were formed. After......
with Table 1 and Fig. 1, the corresponding phase transformation is marked at each exothermic peak in Fig. 2. In the DSC curve, the peak of 1413 °C corresponds to the beginning of δ precipitation from...J. Cent. South Univ. (2017) 24: 782-788 DOI: 10.1007/s11771-017-3480-2 Precipitation and decomposition behaviors of carbides in AISI M2 high-speed steel with nitrogen and mischmetal LIU Bao-long(刘宝龙......
-ray diffraction. Representative phase transformations categorized as polymorphic, discontinuous precipitation,quasi-binary eutectoid, and ternary transitional U-type phase transformation are presented...Phase Transformations in Low-Fe Alloys of the Al-Cu-Fe System Liming Zhang1 (1.Department for Earth and Environmental Science, Crystallography section, Ludwig-Maximillian- Universitat Munchen......
phase by homogeneous precipitation method. In this paper, the effect of preparation conditions on the physico-chemical properties and electrochemical performance of Al-substituted α-Ni(OH)2 prepared... 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......