| Issue |
J. Phys. Colloques
Volume 48, Number C8, Décembre 1987
Fifth European Conference on Internal Friction and Ultrasonic Attenuation in Solids
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| Page(s) | C8-447 - C8-450 | |
| DOI | https://doi.org/10.1051/jphyscol:1987868 | |
Fifth European Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 48 (1987) C8-447-C8-450
DOI: 10.1051/jphyscol:1987868
Department of Solid State Physics, Kossuth University, PO Box 2, H-4010 Debrecen, Hungary
J. Phys. Colloques 48 (1987) C8-447-C8-450
DOI: 10.1051/jphyscol:1987868
STRESS DEPENDENT INTERNAL FRICTION AND MODULUS CHANGES IN IRON BASED METALLIC GLASSES
G. POSGAY, S. KISS, F.J. KEDVES, I.Z. HARANGOZÓ et Z. CSERESNYÉSDepartment of Solid State Physics, Kossuth University, PO Box 2, H-4010 Debrecen, Hungary
Abstract
The measurements were made in a torsional pendulum at about
0.1 cps using longitudinal stress (5 - 150 MPa) in the temperature range 20 -
600°C. The internal friction (i.f.) decreases and the modulus increases
monotonously with increasing longitudinal stress in the, amorphous state. This
i.f. change is more pronounced in the temperature range of structural
relaxation. Changing the stress at constant temperature the changes of the
measured parameters were time and temperature dependent. These effects can be
explained by the diffusion controlled reversible ordering of the atoms due to
the applied stress. Also the isothermal crystallization was accelerated by the
stress.