中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 12 No. 5 October 2002 |
produced by spray codeposition
GU Min(顧敏)1, WANG Xi-ke(王西科)1,
WANG Can(王 燦)3, ZHU Zheng-gang(朱震剛)
（1. Research Center for Materials, Zhengzhou University,
Zhengzhou 450002, China;
2. College of Mechanical and Electronic Engineering,
Zhengzhou University, Zhengzhou 450002, China;
3. Laboratory of Internal Friction and Defects in Solids,
Institute of Solid State Physics, Hefei 230031, China）
Abstract:Effects of five typical heat treatment processes on the damping properties and the damping peak of 6061Al/SiCp MMC fabricated by spray codeposition were studied. The results show that the internal friction spectra ofvarious heat treated samples exhibit the damping peak versus temperature between 130℃ and 200℃. Furthermore, the peak temperature as well as the peak height increases with increasing frequencies. By Arrhenius equation the active energy of the damping peak can be gotten, which is above 1eV. On the other hand, different quenching treatments affect the damping peak remarkably, when the rate of cooling is above that of water quenching, the damping peak will shift to higher temperature as cooling speed is enhanced.
Key words: spray codeposition; 6061Al/SiCp MMC; heat treatment; damping capacity; damping peak
