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  • Characterization of an Cu-Cr-Zr alloy synthesized with the powder-metallurgy technique = Karakterizacija zlitine Cu-Cr-Zr, sintetizirane s tehniko prašne metalurgije
    Ipek, Mediha
    A Cu-1.5 % Cr-0.5 % Zr alloy was prepared with the powder-metallurgy (PM) method. Cu-Cr-Zr powders were pressed under 390 MPa of uniaxial compression and sintered at 1000 °C for 2 h. After the ... holding time, the samples were immediately taken out of the furnace and pressed at 850 MPa. The sintered samples were solution-treated at 1000 °C for 15 min and water quenched. Then they were deformed by 20 % at room temperature and aged at 470 °C for (2, 4, 6 and 8) h. A SEM investigation revealed that the Cr and Zr particles having a limited solubility in Cu distributed homogeneously in the copper matrix. An XRD analysis showed that each sample (sintered and aged at 470 °C for different times) has the same phases: copper and trace Cr[sub]{2}O[sub]3. The relative density of the sinter-pressed sample increased from 92 % to 96 % due to cold deformation. The microhardness of the samples ranged from 77 HV for the solution-treated and water-quenched sample to 116 HV for the aged sample, and the electrical conductivity of the samples increased from 76 % IACS for the sinter-pressed sample to 87 % IACS for the sample aged for 8 h.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 1, jan.-feb. 2013, str. 111-114)
    Vrsta gradiva - članek, sestavni del
    Leto - 2013
    Jezik - angleški
    COBISS.SI-ID - 961706

    Povezava(-e):

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

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 1, jan.-feb. 2013, str. 111-114)

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