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  • Application of powder metallurgy in the processing of aluminium scraps with high-iron contents = Uporaba postopkov prašne metalurgije za predelavo odpadkov na osnovi Al z visoko vsebnostjo Fe
    Vojtěch, Dalibor ; Průša, Filip
    The Al-14Si-8Fe and Al-22Si-8Fe-1Cr (w/%) alloys were prepared via melt centrifugal atomization and compaction at a pressure of 6 GPa. The resulting alloys were porosity-free with good contacts ... between the particles. The structures were very fine and consisted of primary [alpha](Al) dendrites, eutectic silicon and the [betha]-Al5FeSi phase. The Vickers hardness values of the Al-14Si-8Fe and Al-22Si-8Fe-1Cr alloys were (170 10) HV5, (185 16) HV5, respectively. Compressive strength values were 670 MPa and 720 MPa, respectively. Surprisingly, both alloys exhibited a very good plasticity due to the refined structure. The alloys were annealed at 300-400 °C for 100 h to reveal their thermal stability. When the thermal stability of the powder-metallurgy Al-14Si-8Fe and Al-22Si-8Fe-1Cr alloys was compared to that of the casting-piston Al-12Si-1Cu-1Mg-1Ni alloy, the former was found to be superior.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 46, št. 4, jul.-avg. 2012, str. 339-343)
    Vrsta gradiva - članek, sestavni del
    Leto - 2012
    Jezik - angleški
    COBISS.SI-ID - 936618

    Povezava(-e):

    http://www.imt.si/Revija/
    Digitalna knjižnica Slovenije - dLib.si

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 46, št. 4, jul.-avg. 2012, str. 339-343)

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