Dynamic mechanical behavior of intermetallic Ti3Sn

Damping and Young's modulus have been measured in single-phase Ti3Sn using resonant and dynamic mechanical techniques. The compound demonstrates unusual non-linear behavior. Elasticity decreases with strain, but increases with both frequency and temperature (343-673K); damping is unusually high...

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Bibliographic Details
Published in:Scripta materialia 2010-05, Vol.62 (10), p.758-761
Main Authors: Vdovychenko, O.V., Bulanova, M.V., Fartushna, Yu.V., Shcheretsky, A.A.
Format: Article
Language:English
Subjects:
Damping
Elasticity
Energy dissipation
Intermetallics
Nonlinear dynamics
Nonlinearity
Phase transformations
Strain
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Summary:Damping and Young's modulus have been measured in single-phase Ti3Sn using resonant and dynamic mechanical techniques. The compound demonstrates unusual non-linear behavior. Elasticity decreases with strain, but increases with both frequency and temperature (343-673K); damping is unusually high and decreases with frequency, remains unchanged with strain and shows peaks at 190 and 310K. Although the mechanisms of energy dissipation are presently unknown, the results suggest the occurrence of a phase transition at about 350K.
ISSN:1359-6462
DOI:10.1016/j.scriptamat.2010.01.036