喷射共沉积6061Al/SiC_p在不同热处理制度下的阻尼性能  

Damping properties of 6061Al/SiC_p MMC produced by spray atomization and deposition under different heat treatment systems

作　　者：顾金海[1] 张清霄[2] 顾敏[1] 王西科[1] 王灿[3] 

机构地区：[1]郑州大学北区材料研究中心,郑州450002 [2]郑州大学北区机械与电子工程学院,郑州450002 [3]中国科学院固体物理研究所内耗与固体缺陷开放实验室,合肥230031

出　　处：《中国有色金属学报》2002年第z1期131-136,共6页The Chinese Journal of Nonferrous Metals

基　　金：河南省自然科学基金资助项目 ( 0 0 40 4110 0 )

摘　　要：采用喷射共沉积方法制备了 6 0 6 1Al/SiCp 金属基复合材料 (MMC) ,研究了 5种热处理制度对其阻尼性能的影响。结果表明 :不同的热处理状态材料 ,常温下其阻尼基本没有变化 ,高温下阻尼则显著不同 ,在 10 0～ 2 70℃温度范围内 ,阻尼能力的大小顺序为炉冷 >空冷 >- 70℃淬火 >原样 (挤压态 ) >- 195℃淬火 >水淬 ,且超过180℃时 ,所有试样的阻尼能力均可达到 1× 10 -2 以上 ;在本研究的温度和应变振幅测试范围内 ,模量随温度的升高表现为单调下降 ,相同频率下的内耗值不随应变振幅变化。Influence of different heat treatments on the damping properties of the 6061Al/SiC p MMC fabricated by spray atomization and deposition was studied. The results show that damping value changes slightly at low temperature but remarkably at elevated temperature. At 100 ～ 270?℃, the damping capacity rank from great to small as follows: sample cooled in furnace, sample cooled in the air, sample quenched at -70?℃, sample without heat treatment, sample quenched at -195?℃ and sample quenched in water. In addition, the damping capacities of all the samples can be above 1×10 -2 when temperature is above 180?℃. Within the range of measuring temperature and strain amplitude, the shear modulus decline monotonously as temperature rises, and damping values don't change with the strain amplitude at the same frequency.

关 键 词：喷射沉积 6061Al/SiCp复合材料 热处理 阻尼性能 

分 类 号：TG113.226[金属学及工艺—物理冶金]