نتایج جستجو برای: hypoeutectic alsi alloy
تعداد نتایج: 52442 فیلتر نتایج به سال:
Alloy design of Cr-Co-Ni-Ta eutectic medium entropy alloys (EMEAs) was performed through a CALPHAD method coupled with experimental study, the aim to attain high phase stability as well excellent mechanical properties. Based on calculated pseudo-binary diagram, CrCoNiTax (x = 0.1, 0.3, 0.4, 0.5, 0.7) were investigated. Two phases, FCC solid solution and Laves phase, identified in alloys. With i...
Abstract The corrosion and passivation behavior of the as-cast CoCrFeNiMo x ( = 0, 0.2, 0.4, 0.6, 0.8, 1.0) high entropy alloys (HEAs) are investigated. With addition Mo, increasing Mo Cr riched σ phase precipitates from primary FCC phase. resistance HEAs strongly depends on structure passive film. Generally, promotes selective dissolution enrichment 2 O 3 in film, former deteriorates while lat...
PET measurements of regional cerebral blood flow (rCBF) were used to explore frontal lobe dysfunction in amyotrophic lateral sclerosis (ALS). An activation paradigm of executive frontal lobe function (verbal fluency), which contrasted rCBF during word generation and word repetition, was used. Two groups of ALS patients, defined by the presence or absence of cognitive impairment (ALSi) (impaired...
We report a linear-scaling density functional theory (DFT) study of the structure, wall-polarization absolute band-alignment and optical absorption of several, recently synthesized, open-ended imogolite (Imo) nanotubes (NTs), namely single-walled (SW) aluminosilicate (AlSi), SW aluminogermanate (AlGe), SW methylated aluminosilicate (AlSi-Me), and double-walled (DW) AlGe NTs. Simulations with th...
Sn-Bi solder with different Bi content can realize a low-to-medium-to-high soldering process. To obtain the effect of Bi content in Sn-Bi solder on the microstructure of solder, interfacial behaviors in solder joints with Cu and the joints strength, five Sn-Bi solders including Sn-5Bi and Sn-15Bi solid solution, Sn-30Bi and Sn-45Bi hypoeutectic and Sn-58Bi eutectic were selected in this work. T...
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