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">The effect of the rare earth(RE) element Y on the microstructure of AZ91 Mg alloy is investigated.A detailed description of the procedure of identifying the intermetallic phases containing Y in the AZ91 Mg... in-situ the effect of the(5 phase and the above two RE intermetallic phases on the corrosion initiation of the alloys.The results show that the corrosion attack of AZ91 Mg alloy without Y addition......
Investigation of secondary phases and tensile strength of nitrogen-containing Alloy 718 weldmentBehrooz Nabavi1,Massoud Goodarzi1,Abdul Khaliq Khan21. School of Metallurgy and Materials Engineering... of nitrogen content on the precipitation of secondary phases and the tensile strength of Alloy 718 during gas tungsten arc welding was investigated. Various types of precipitates were characterized using......
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Stability of phases in (Ba, Gd)MnO3 solid solution systemMigaku Kobayashi,Hidenori Tamura,Hiromi Nakano,Hirohisa Satoh,Naoki Kamegashira摘 要:The existing phases in BaxGd1-xMnO3 solid solution system (0≦x≦1) were studied by analyzing the detailed crystal structure of each composition from the results of the Rietveld method using powder X-ray diffraction......
Characteristics of combustion zone and evolution of mineral phases along bed height in ore sinteringYao-zu Wang,Jian-liang Zhang,Zheng-jian Liu,Ya-peng Zhang,Dong-hui Liu,Yi-ran LiuSchool..." method was developed to obtain the actual reaction temperature of sinter along the height direction. With increasing the sintering temperature, the reactants transformed and entered into liquid phases......
Tailoring the secondary phases and mechanical properties of ODS steel by heat treatmentQian Zhao,Zongqing Ma,Liming Yu,Huijun Li,Chenxi Liu,Chong Li,Yongchang Liu摘 要:phases, the as-HIPed ODS steel was annealed at 800°C, 1000°C, 1200°C for 5 h, respectively. The microstructures and different......
observation of the layers on the different phases of the alloy.The results demonstrated a sequential involvement of the different phases in the plasma discharges:firstly,discharges start on the α-Al matrix,then on the intermetallic Al2 Cu and β-Al5 FeSi phases at the same time and finally on the eutectic Si.The presence of intermetallic Al2 Cu remarkably affects the initial dissolution,the deposition......
on which the selections of δ.δ’and α phases in undercooled Al-Li melts were summarized by both isothermal and continuous cool-ing treatment methods.关键词:...Nucleation and Formation of Stable and Metastable Phases in Undercooled AI-Li MeltsShenglong DAI Guifu YU Minggao YAN Institute of Aeronautical Materials,Beijing,100095,China摘 要:
electron microscopy with energy dispersed X-ray. Based on microstructure analysis, the phase constituents of alloys at Al grain boundaries were identi?ed. The melting points of Al grain boundary phases were measured using differential scanning calorimeter.The reactivities of Al–water at different water temperatures indicate that liquid Al grain boundary phases promote Al–water reactions of alloys......
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