SYMPOSIA PAPER Published: 01 January 1997

Factors Affecting the Damping Capacity of TiC Particle Reinforced Zinc-22 Aluminum Composites


Damping behavior of eutectoid zinc-aluminum composites was studied in the 25 to 33O°C temperature range using a low-frequency torsion pendulum. In this study the internal friction was affected by changes in microstructure and by the amount of cold work prior to testing. The highest damping was obtained for a composite with 15% titanium carbide (TiC) particles, a fine lamellar microstructure, and after being cold worked 20%. A high-temperature (HT) internal friction peak at a temperature just below the eutectoid transformation temperature was observed in the composite materials, and in the annealed base alloys cold worked prior to testing. The authors believe this HT peak is associated with recrystallization of the matrix prior to the eutectoid transformation.

Author Information

Lu, J
The University of Missouri-Rolla, Rolla, MO
Van Aken, DC
The University of Missouri-Rolla, Rolla, MO
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E28
Pages: 288–301
DOI: 10.1520/STP11756S
ISBN-EB: 978-0-8031-5362-2
ISBN-13: 978-0-8031-2417-2