固相颗粒粉末冶金泡沫铝的性能研究  

MEHANICAL PROPERTIES OF GRANULAR REINFORCED P/M AL FOAMS

作　　者：王展光[1,2] 杜晟连[1] 

机构地区：[1]井冈山大学,江西吉安343009 [2]凯里学院,贵州凯里556011

出　　处：《粉末冶金工业》2014年第2期29-32,共4页Powder Metallurgy Industry

基　　金：江西省科技支撑项目(2010BGA01700);井冈山大学博士启动项目(JZB11015)

摘　　要：本文在加入粒径为0.5μm SiC颗粒制备出复合泡沫铝的基础上,对其材料进行单向压缩试验,研究其在受力情况下的力学性能、吸能能力和吸能效率。结果表明:SiC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;SiC颗粒增强粉末冶金泡沫铝压缩应力应变曲线,呈现线弹性变形、屈服平台阶段、致密化阶段;其屈服强度随SiC颗粒的体积百分含量增大而增大。P/M Al foams were prepared with 0.5μm SiC particles as reinforcement.The mechanical properties,energy absorption capability and efficiency had been investigated.The results show that the compressive stress-strain curve of the foams consists of three distinct regions,which includes linear elasticity region,plastic collapse region and densification region.The yield strength of the foam improves with the increasing of SiC content.

关 键 词：SIC颗粒 粉末冶金泡沫铝 压缩应力应变曲线 吸能能力 

分 类 号：TF125.22[冶金工程—粉末冶金]