摘要
在加入粒径为0.5μm的Si C颗粒制备出复合泡沫铝的基础上,研究了Si C颗粒对熔体粘度、孔结构及力学性能的影响。结果表明:Si C颗粒对熔体粘度、孔结构都有重要影响,Si C颗粒增强粉末冶金泡沫铝的压缩应力-应变曲线与其他多孔泡沫金属相似;该试样的屈服强度随Si C颗粒含量的升高而增大。
Based on the compression tests of Si C granular reinforced Al foams made by PM route measured, the melt viscosity, pore structure and mechanical properties of the samples were investigated. Si C granular has great influences on the melt viscosity and pore structure of Al foams. The compressive stress-strain curve consists of three distinct regions, linear elasticity region, plastic collapse region and densification region. With the increase of volume fraction of Si C particles, the compressive yield strength under compression greatly improves.
出处
《热加工工艺》
CSCD
北大核心
2014年第22期43-45,共3页
Hot Working Technology
基金
江西省科技支撑项目(2010BGA01700)
井冈山大学大学生创新项目(粉末冶金泡沫组合梁制备及其性能研究)
关键词
SI
C颗粒
泡沫铝
熔体粘度
孔结构
力学性能
Si C particle
Al foams
melt viscosity
pore structure
mechanical properties
