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luminescent lifetimes.Here,a room-temperature co-precipitation method was used to synthesize europium(III) activated La1-xGdxF3 solid phosphors.X-ray diffraction(XRD) data confirmed the crystalline phases......
-hardness was measured before and after shock processing. The room-temperature tensile properties and the fatigue life of the alloy were tested. The fractographs of fatigue specimens were observed by SEM. The results show that, after the laser shock processing (LSP), the dislocation density is enhanced and the microstructure is refined in the surface layer of the alloy. The room-temperature tensile......
optimal microstructures for mechanical behavior studies. A room-temperature ductility of 1.9% was obtained in the cast TiAl-based alloy after the appropriate heat treatment. The mechanical behavior... alloys, the fully-lamellar (FL) structure, composed of α2/γ lamellae, has a low tensile ductility at room temperature but higher fracture toughness than the other microstructures. On the other hand......
and process on room-temperature and high temperature bonding performance were studied. The results show that the consistence of binders and treatment technologies are critical to adhesion performance of bonded joint at room-temperature and high temperature. Bonding interface combines closely after curing at 120 ℃ and heat treatment at 1 000 ℃. After curing at 120 ℃, the room temperature tensile......
. Meanwhile, the extrusion process has obvious effects on the room-temperature properties but weak effects on the high-temperature properties.关键词:... alloy, when it is extruded with a lower extrusion temperature, a suitable extrusion ratio and a relatively lower extrusion ram speed. In this study, the ultimate tensile strength(UTS),yield strength......
paper focuses on the effects of aging temperatures(700, 750, 800, 850 and 900 ℃) on microstructure, room-temperature tensile properties as well as tensile properties at 650 ℃ and creep properties at650... gradually, which leads to the decrease in tensile strengths both at room temperature and 650 ℃ and a little increase in ductility. For creep properties, the sample aged at 700 ℃ shows the best creep......
" name="ChDivSummary">The characteristic of precipitation behavior of a2 phase and silicide, and the tensile properties at room temperature and 650℃after heat treatments in anovel TiAl-Sn-Zr-Mo-Nb-W... a sharp decrease in the room-temperature ductility of BTi-6431 S alloy.关键词:......
at room-temperature was studied. The results showed that the microstructure of Mg-8Zn-1Y alloy solidified under ambient pressure and super-high pressure was both mainly composed of ■-Mg and quasicrystal......
annealed at 625°C. When the annealing temperature was 500°C or greater, the extent of reordering in the sample was high, which reduced the room-temperature plasticity. However, annealing at temperatures... Materials and Technology, University of Science and Technology Beijing摘 要:The effects of annealing temperature(with the annealing time being constant at 1 h......
,atomic radius difference(δ),valance electron concentration,and electronegativity difference(△χ) were designed and prepared.The microstructure and room-temperature mechanical behavior of both alloys were......
