The Effect of Nanosized Pb Liquid Phase on the Damping Behavior in Aluminum Matrix Composite Based on the 2024Al-BaPbO3 System
An aluminum matrix composite containing nanosized Pb particles was fabricated by a powder metallurgy technique based on the 2024Al-BaPbO3 system. The composite exhibited a high and broad damping peak at the melting temperature range of nanosized Pb particles. The increase in value and breadth of the damping peak was attributed to the dislocation damping of the interfacial matrix close to the nanosized Pb liquid phase. The damping peak is expected to be enhanced by further refining the Pb particle size.
This work was financially supported by (I) the Heilongjiang province Natural Science Foundation (Contract No.: ZJC 0604) and (II) the “973” program of China (Project No.: 2008CB617604).
- 12.A. Wolfenden, L.S. Cook, and J.M. Wolla, Mechanics and mechanism of materials damping, ed. V.K. Kinra and A. Wolfenden (Philadelphia: ASTM International, 1992), p. 206.Google Scholar
- 19.D.R. Askeland and P.P. Phule, Essentials of materials science and engineering (Stamford: Nelson, 2004), pp. 124–138.Google Scholar