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种热处理制度对其组织和阻尼性能的影响 .结果表明 :不同热处理状态的材料 ,在常温下内耗值基本相同 ,而在高温下则存在显著差别 .在 1 0 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 >-1 95℃淬火 >水淬 ;在试验温度范围内 ( 30℃～ 4 0 0℃ ) ,模量随温度的升高表现为单调下降 ,随应变振幅的增加而增加 ;同一频率下 。
The Influence of five typical heat treatment technologies on the microstructure and damping properties of the 6061 Al/SiC P MMC, which were fabricated by spray-atomization and code-position, is studied. The results show that, damping value changes slightly at low temperature but remarkably at high temperature for the specimens undergoing different heat treatment, between the temperature of 100 ℃and 270 ℃, the damping capacities are ranked from great to small as follow: specimen cooled in furnace, specimen cooled in the air, specimen quenched at -70 ℃, specimen without heat treatment, specimen quenched at -195 ℃ and specimen quenched in water; between the test temperature of 30 ℃ and 400 ℃, the shear modulus decline monotonously as temperature rises and increase with the augment of strain amplitude. Furthermore, the damping capacities don't change with the strain amplitude under the same frequency.
出处
《郑州工业大学学报》
CAS
2001年第4期85-89,共5页
Journal of Zhengzhou University of Technology
基金
河南省自然科学基金资助项目 ( 0 0 4 0 4 1 1 0 0 )
