STRESS-INDUCED REORDERING IN AMORPHOUS METALS ANALYZED BY RELAXATION-TIME AND ACTIVATION-ENERGY SPECRUM MODEL

Vaclav Ocelik, K CSACH, A KASARDOVA, J MISKUF, VZ BENGUS, P DUHAJ

    OnderzoeksoutputAcademicpeer review

    Samenvatting

    The isothermal anelastic deformation below the glass transition temperature T-g was investigated on Fe40Ni40B20 and Ni77.5Si7.5B15 amorphous ribbons. Experiments were carried out at temperatures 320 and 340 degrees C after application of mechanical stress steps between 5 - 210 MPa. The obtained anelastic deformation data have been analyzed using two different methods to calculate the relaxation time and activation energy spectrum. Both of these methods reveal that the anelastic relaxation processes in the amorphous structure strongly depend on chemical composition, cooling rate and structural relaxation state of the amorphous structure. The obtained spectra involve three or four quite well separated peaks, each of them represents a different mode of a local atomic rearrangement during the anelastic deformation.

    Originele taal-2English
    TitelPLASTICITY OF METALS AND ALLOYS - ISPMA 6
    RedacteurenP Lukac
    Plaats van productieCLAUSTHAL ZELLERFE
    UitgeverijTRANS TECH PUBLICATIONS LTD
    Pagina's97-102
    Aantal pagina's6
    ISBN van geprinte versie0-87849-687-4
    StatusPublished - 1994
    Evenement6th International Symposium on Plasticity of Metals and Alloys (ISPMA 6) - PRAGUE, Czech Republic
    Duur: 5-sep.-19949-sep.-1994

    Publicatie series

    NaamKEY ENGINEERING MATERIALS
    UitgeverijTRANS TECH PUBLICATIONS
    Volume97-9
    ISSN van geprinte versie0252-1059

    Conference

    Conference6th International Symposium on Plasticity of Metals and Alloys (ISPMA 6)
    Land/RegioCzech Republic
    Periode05/09/199409/09/1994

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