publication . Article . 2009

High temperature damping behaviour of Ti6Al4V-SiCf composite

P. Deodati; R. Donnini; R. Montanari; C. Testani;
Open Access English
  • Published: 01 Jan 2009
  • Country: Italy
Abstract
Abstract The Ti6Al4V–SiC f composite, reinforced by unidirectional SiC fibres (SCS-6), has been investigated by internal friction (IF) and dynamic modulus measurements in the temperature range 300–1173 K. Experiments have been carried out by using a vibrating reed technique with electrostatic excitation and frequency modulation detection of flexural vibrations in the frequency range from 600 to 1800 Hz. For comparison the monolithic Ti6Al4V alloy has been submitted to the same experiments. The IF spectrum of the composite exhibits a relaxation peak at about 870 K superimposed to an exponentially increasing background. The peak, not present in the spectrum of mat...
Subjects
free text keywords: Settore ING-IND/21 - Metallurgia, Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics, Atmospheric temperature range, Activation energy, Titanium alloy, Metal matrix composite, Dynamic modulus, Relaxation (NMR), Materials science, Excitation, Composite material, Composite number
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publication . Article . 2009

High temperature damping behaviour of Ti6Al4V-SiCf composite

P. Deodati; R. Donnini; R. Montanari; C. Testani;