ПОЛУЧЕНИЕ ИНТЕРМЕТАЛЛИДА Fe3Al МЕТОДАМИ ПОРОШКОВОЙ МЕТАЛЛУРГИИ
نویسندگان
چکیده
منابع مشابه
High Temperature Corrosion Behavior of HVOF, Fe3Al Coatings
This work evaluates the suitability of iron aluminide coatings for use in high temperature fossil fuel combustion environments, such as boiler applications. The coatings are applied using High Velocity Oxy-Fuel (HVOF) thermal spray techniques. Bulk Fe3Al coatings are known to exhibit excellent oxidation and sulfidation resistance at high temperatures, however, the behavior of HVOF-deposited Fe3...
متن کاملShape memory behavior in Fe3Al-modeling and experiments
The Fe3Al alloy with D03 structure exhibits large recoverable strains due to reversible slips. Tension and compression experiments were conducted on single crystals of Fe3Al, and the onset of slip in forward and reverse directions were obtained utilizing high-resolution digital image correlation technique. The back stress provides the driving force for reversal of deformation upon unloading, re...
متن کاملWater vapor effect on high-temperature oxidation behavior of Fe3Al intermetallics.
Fe3Al intermetallics (Fe3Al, Fe3Al-Zr, Fe3Al-Zr,Mo and Fe3Al-Zr, Mo, Nb) were oxidized at 950 °C in dry and humid (11 vol% water) synthetic air. Thermogravimetric measurements showed that the oxidation rates of the tested intermetallics were lower in humid air than in dry air (especially for Fe3Al-Zr, Mo and Fe3Al-Zr, Mo, Nb). The addition of small amounts of Zr, Mo or Nb improved the kinetics ...
متن کاملThe Microstructure Evolution of a Fe3Al Alloy during the LENS Process
A Fe₃Al intermetallic alloy has been successfully prepared by the laser-engineered net shaping (LENS) process. The applied process parameters were selected to provide various cooling rates during the solidification of the laser-melted material. The macro- and microstructure and the micro- and macrotexture of Fe₃Al samples were investigated. The influence of the cooling rate on grain morphology ...
متن کاملINTERNAL STRESSES AND TEXTURE OF NANO-STRUCTURED ALUMINA SCALES GROWING ON Fe3Al POLYCRYSTALS
The evolution of internal stresses in oxide scales growing on an Fe3Al polycrystal in atmospheric air at 700 determined using in-situ energy-dispersive synchrotron x-ray diffraction. Texture analyses were performed ex-situ after 5h of oxidation at 700 the oxide scale thickness, as determined by x-ray photoelectron spectroscopy, lays between 80 and 100nm. The main phase present in the oxide scal...
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ژورنال
عنوان ژورنال: Кераміка: наука і життя
سال: 2016
ISSN: 2521-6708,2521-6694
DOI: 10.26909/csl.4.2016.3