ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effect of partial crystallization on the mechanical properties of a Zr based bulkmetallic glass (Vitreloy 1) is investigated. Viscoelastic properties are studied by mechanicalspectroscopy in large frequency and temperature ranges, both below or above the glass transitiontemperature (Tg), whereas viscoplastic properties are investigated by compression tests . To studythe interaction between crystallization and mechanical properties at high temperature,nanocomposites are produced thanks to appropriate heat treatments. Formation of nanocrystallineparticles induces an increase of the storage elastic modulus, especially in the glass transition range,where this modulus is very low in the amorphous material. It also results in a decrease of the losselastic modulus, corresponding to a decrease of the atomic mobility. Finally, partial crystallizationinduces very large hardening revealed by the compression tests but the hardening extent dependsstrongly on the applied strain rate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.2036.pdf
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