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with the precipitation kinetics (evolution of radius and volume fraction of precipitates for Ω phase) of aged Al-Cu-Mg-Ag alloys. The model gives an estimation of the precipitation kinetics (evolution of radius... improved[10-11]. Although there is a lot of problem to be understood, many researches described the precipitation mechanism of Ω phase, and agreed that Mg-Ag clusters acted as the nucleation sites......
ARTICLE J. Cent. South Univ. (2019) 26: 312-322 DOI: https://doi.org/10.1007/s11771-019-4003-0 Intensifying gibbsite precipitation from sodium aluminate solution by adding a mixed seed LI Xiao-bin..., China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Gibbsite precipitation from sodium aluminate solution was intensified by adding mixed......
from the supersaturated γ solid solution; precipitation reactions which occur in the γ ' phase; and the decomposition reactions of MC carbides. Key word: superalloy; phase transformation... on the microstructure and properties of a cast Ni-base superalloy[J]. Metall Mater Trans A, 2007, 38: 3014-3022. [14] GUO J T, RANUCCI D, GHERARDI F. Precipitation of b phase in the γ ? particles of nickel......
quenching exhibits a number of technological.ecological and economical advantages. In comparison to liquid quenching media, gas does not change its phase during quenching. Moreover, the cleaning... nozzle fields and water quenching baths were performed. 关键词:aluminium; precipitation hardening; gas quenching; mechanical properties; [全文内容正在添加中] ......
insights into phase change and precipitation mechanism.It is found that the σ phase,in any case,tends to separate out with a granular shape at grain boundaries(GBs) primarily,and with the increment of time...Mechanism for the multi-stage precipitation of Fe-Ni based alloyYan Jiang,Qiang Zuo,Feng LiuState Key Laboratory of Solidification Processing,Northwestern Polytechnical University摘 要:
, precipitation kinetics and peak-hardness of Mg2Si hardening phase formed during aging[6-8]. In addition, it was also reported that increment in magnesium content had action to softening effect[9] produced... of the as-cast phase, and the peaks of Al55(Mn- Fe)20Si25 also present, it implies that the precipitation of Al4(MnFe)3Si2 and Al55(MnFe)20Si25 takes place during homogenization. On the one hand......
precipitation. The composition, morphology, and phase transformation of precursor were analyzed by IR, XRD and TEM. The size distribution of YAG powders was characterized using laser diffraction method...Effect of Sulfate Ions on YAG Powders Synthesized by Microwave Homogeneous Precipitation Xu Hongyan1,Wang Jieqiang1,Yue Yunlong1,Wang Yong1 (1.School of Materials Science and Engineering, Jinan......
J. Cent. South Univ. (2016) 23: 2139-2145 DOI: 10.1007/s11771-016-3270-2 TiO2 preparation by improved homogeneous precipitation and application in SCR catalyst YAO Jie(姚杰)1, 2, ZHONG Zhao-ping(仲兆平)2..., China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: Ultrasonic treatment and hydrothermal method were applied in the traditional homogeneous precipitation......
ITO nano-powders prepared by microwave-assisted co-precipitation in aqueous phase ZHU Xie-bin(朱协彬), JIANG Tao(姜 涛), QIU Guan-zhou(邱冠周), HUANG Bai-yun(黄伯云) School of Minerals Processing...; Abstract: By using microwave-assisted co-precipitation in aqueous phase, adding surface activation agent......
of sulfur nanomaterial by liquid phase precipitation method for Li/S battery YUAN Yan, CHEN Bai-zhen, CHEN Ya (School of Metallurgy and Environment, Central South University, Changsha 410083, China) Abstract: Sulfur nanomaterial was prepared in aqueous solution by liquid phase precipitation method with sublimed sulfur as the raw material. The synthesis conditions of the material were analyzed......