Damping properties of vacuum annealed and H-doped NiTi based alloys at low stress amplitude (Articolo in rivista)

Type
Label
  • Damping properties of vacuum annealed and H-doped NiTi based alloys at low stress amplitude (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • B. Coluzzi, A Biscarini, G. Mazzolai, F.M. Mazzolai, A.Tuissi, E.Villa (2006)
    Damping properties of vacuum annealed and H-doped NiTi based alloys at low stress amplitude
    in Key engineering materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • B. Coluzzi, A Biscarini, G. Mazzolai, F.M. Mazzolai, A.Tuissi, E.Villa (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 8 (literal)
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  • 319 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Perugia, Department of Physics, Via A. Pascoli 5, 06100 Perugia, Italy Istituto per l'Energetica e le Interfasi, CNR-IENI, Lecco, Italy (literal)
Titolo
  • Damping properties of vacuum annealed and H-doped NiTi based alloys at low stress amplitude (literal)
Abstract
  • The internal friction (IF) and the Young's modulus (E) of NiTi based alloys have been investigated at 1 Hz and 1 kHz frequencies after various sequences of thermo-mechanical treatments and hydrogen-doping given to the materials. Differential scanning calorimetry (DSC) has also been used as a complementary investigation tool. Apart from the transient effects, only occurring at 1 Hz frequencies, the data indicate a substantial insensitivity of damping to frequency. The results show that the H-Snoek and the H-twin boundary relaxations get their maximum height for H contents nH (nH=H/Me) equal to about 0.025 and 0.008, respectively. At kHz frequencies the IF peaks associated with these relaxations occur at around room temperature in the Ni49Ti51 and Ni30Ti50Cu20 alloys. Thus, these appear to be the most promising materials for applications aimed at the reduction of vibrations. (literal)
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