Strain-Dependent Damping of Ti-10V-2Fe-3Al at Room Temperature
J. Gökena, S. Fayed a and P. Skubisz b
aUniversity of Applied Sciences Emden-Leer, Faculty of Maritime Studies, Bergmannstr. 36, 26789 Leer, Germany
bFaculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
Received: April 25, 2016; In final form: October 20, 2016
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The Ti-10V-2Fe-3Al alloy is advantageous over other titanium grades due to its high tensile strength and its high resistance against creep, cracking, and corrosion. The investigated alloy was hammer-forged inducing high strain rates in the material at a temperature of 800°C and underwent different cooling procedures. Three in that way thermomechanically treated specimens were prepared for subsequent study of the vibration behaviour of the material with the help of non-destructive, contact-free acoustic measurements. Resulting time-dependent decaying acoustic signals were analysed to investigate the dependence of the material damping behaviour on the individual downstream thermal treatment procedure and, ultimately, on the microstructural changes.

DOI: 10.12693/APhysPolA.130.1352
PACS numbers: 61.72.Hh, 43.40.Cw, 43.58.Fm