Paper Titles
Influence of Oxygen on the Damping Properties of Nb-Zr Alloys
p.121
Hydrogen-Induced Damping Peak Temperatures in Bulk Metallic Glasses
p.127
High Damping Performance of Hydrogenated Bulk Metallic Glasses
p.133
Internal Friction and Mechanical Strength of Hydrogenated Ti-Rich Multicomponent Glassy Alloys
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Can Metallic Glass Damping Be Increased by Stress Training Treatment?
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Search for High Damping Metallic Glasses
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High Damping in Ferroelectric and Ferrimagnetic Ceramics
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Damping Mechanisms in Oxide Materials and Their Potential Applications
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Synthesis of Novel High Damping Ceramic-Polymer Composites and Its Application as Ceramic Musical Instruments
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Can Metallic Glass Damping Be Increased by Stress Training Treatment?

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Abstract:

We have subjected Zr59Cu20Al10Ni8Ti3 glassy sample to internal friction thermal cycle (IFTC) measurements under various conditions involving changes in heating/cooling rate, strain amplitude and frequency. Additional low temperature internal friction peaks (ALTIFP) were found to occur with the characteristic low temperature internal friction peak (CLTIFP) observed for some glassy alloys. The ALTIFP were enhanced on heating and reduced on cooling. Their strength increase following the number of IFTC can be related to a stress concentration in some zones of the glassy structure, which is abruptly relaxed by the viscous flow creating interfaces in the glassy structure. These interfaces are likely to be formed between atomic clusters. The growth of the ALTIFP increases significantly the whole IF level (IFL) from 10-4 to 10-2 enhancing the damping capacity of the glassy sample.

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Periodical:

Key Engineering Materials (Volume 319)

Pages:

145-150

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.319.145

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Online since:

September 2006

Authors:

Tiburce A. M. Aboki

Keywords:

Atomic Clusters, Bulk Metallic Glass (BMG), High Damping Materials, Interface, Internal Friction

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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