| Numéro |
J. Phys. Colloques
Volume 44, Numéro C9, Décembre 1983
ECIFUAS-4Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides |
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|---|---|---|
| Page(s) | C9-127 - C9-131 | |
| DOI | https://doi.org/10.1051/jphyscol:1983914 | |
ECIFUAS-4
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-127-C9-131
DOI: 10.1051/jphyscol:1983914
1 Institute for Applied Physics, Kossuth L. University, Debrecen, P.O. Box 2, H- 4010, Hungary
2 Csepel Metal Works, Csepel 1 , P.O. Box 49, H-1757, Hungary
Fourth European Conference on Internal Friction and Ultrasonic Attenuation in Solids / Quatrième Conférence Européenne sur le Frottement Intérieur et l'Atténuation Ultrasonore dans les Solides
J. Phys. Colloques 44 (1983) C9-127-C9-131
DOI: 10.1051/jphyscol:1983914
ANELASTIC BEHAVIOUR OF SOME SIX COMPONENT METALLIC GLASSES
S . Kiss1, G. Posgay1, Cs. Kopasz2, F.J. Kedves1 et I.Z. Harangozó11 Institute for Applied Physics, Kossuth L. University, Debrecen, P.O. Box 2, H- 4010, Hungary
2 Csepel Metal Works, Csepel 1 , P.O. Box 49, H-1757, Hungary
Abstract
Internal friction, dynamic elastic modulus and micro-hardness were measured on FeCoNiCrBSi amorphous alloys. Various modulus increases were found in the strcutural relaxation range below the crystallization temperature. The three crystallization steps up to 700°C marked by modulus increase and damping decrease depend on the composition and the previous heat treatments. This effect diminished markedly after heat treatments at a temperature 30-40°C below the crystallization point. No definite relaxation peak was found. The microhardness investigations confirmed the results inferred from the modulus measurements. The stability of the amorphous system increases with increasing Cr and Si content.