Effect of different heat treatment process on damping peak of 6061Al/SiC_p MMC produced by spray codeposition

来源期刊：中国有色金属学报(英文版)2002年第5期

论文作者：顾金海 张清霄 顾敏 王西科 王灿 朱震刚

文章页码：960 - 965

Key words：spray codeposition; 6061Al/SiC_p MMC; heat treatment; damping capacity; damping peak

Abstract: Effects of five typical heat treatment processes on the damping properties and the damping peak of 6061Al/SiC_p 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.