航空材料学报2011，Vol.31Issue(1)：56-61,6.DOI:10.3969/j.issn.1005-5053.2011.1.011
颗粒含量及粒度对SiCP/Al复合材料高温变形行为及组织的影响
Effects of Particle Content and Granularity on Hot-Deformation Behavior and Microstructure of SiCp/Al Composite
摘要
Abstract
SiCp/A1 Composites with various volume fraction were prepared by pressureless infiltration. Hot( above melting point of matrix) compression on the composite was tested. The flow stress behavior of composite with different contents and granularitie standards was rearched. Effects of particle content and granularity on microstructure of SiCp/Al composite with high volume fraction were observed and analyzed by using SEM. The results show that: SiCp/A1 Composite with Higher Fraction shows Pseudo-plastic deformation during hot compression; Effect of particle granularity on the flow stress has two steps; The effecting law of particle content and granularity on microstructure of SiCp/Al Composite conforms to its flow stress behavior; SiCp/Al Composite with 55％ Fraction and F220 granularity standard shows Pseudo-plastic deformation during hot compression, effects of hot compression on particle disbution and size are more obvious than other composites.关键词
SiCP/Al复合材料/高温压缩/颗粒含量/颗粒粒度/颗粒尺寸/组织Key words
SiCp/Al composite/ hot compression/ particle content/ particle granularity/ particle Size/ microstructure引用本文复制引用
曾莉,任学平,崔岩..颗粒含量及粒度对SiCP/Al复合材料高温变形行为及组织的影响[J].航空材料学报,2011,31(1):56-61,6.基金项目
国家863项目(2007AA03Z544) （2007AA03Z544）
