热处理对喷射共沉积SiC_P/6061Al复合材料内耗峰的影响  

EFFECT OF HEAT TREATMENTS ON THE DAMPING PEAK OF SiC_P/6061Al MMC PRODUCED BY SPRAY CODEPOSITION

作　　者：顾金海[1] 王西科[2] 顾敏[2] 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200030 [2]郑州大学材料研究中心,郑州450002

出　　处：《复合材料学报》2003年第3期74-78,共5页Acta Materiae Compositae Sinica

基　　金：河南省自然科学基金项目(004041100)

摘　　要：　采用喷射共沉积方法制备了SiCP/6061Al复合材料,研究了五种热处理工艺对其阻尼性能和内耗峰的影响。结果表明:各种热处理状态试样,在150～200℃范围内均出现温度内耗峰,且随频率增加该峰峰位向高温移动,峰高增加。通过Arrhenius方程测得内耗峰的激活能均高于1eV;另外,不同的淬火处理对该内耗峰有明显影响,当淬火冷却速度高于水淬时,随冷却速度的加大,内耗峰峰位向高温移动。The effect of five typical heat treatment technologies on the damping properties and the damping peak of the SiCp/6061Al MMC fabricated by spray atomization and deposition was studied. The results show that the internal friction spectra of various heat treated samples exhibit the internal friction peak versus temperature between 150°C and 200°C. Furthermore, the peak temperature and the peak height increase with the increase of frequencies. By Arrhenius equation we can get the active energy of the damping peak, which is above 1 eV. On the other band, different quenching treatments affect the damping peak remarkably; under the condition of the rate of cooling layer than water quenching, the damping peak will shift to a higher temperature while the cooling speed is enhanced.

关 键 词：喷射沉积 SICP/6061AL复合材料 热处理 内耗峰 

分 类 号：TB331[一般工业技术—材料科学与工程] TG113.226[金属学及工艺—物理冶金]