摘要
研究了多孔ZL10 1铝合金 (AlSi7Mg0 .4 5 )的压缩应力 应变曲线与孔结构的关系。随孔径的减小 ,它的弹性模量从 2 70MPa增加到 5 5 0MPa ;屈服强度 (σc)从 3MPa增加到 2 0MPa ;随孔隙率的减小 ,屈服强度增加。多孔铝合金具有高的比强度 ,其σ2 /3 c / ρ(梁 )及σ1/2c / ρ(板 )分别为2 .5～ 7.0和 1.6～ 4 .1,与钢和Al合金相当 ,而密度只有Al合金的 4 0 % ,可用作轻质结构材料 ;它的吸能能力 (C)可达到 3～ 7MJ/m3 ,又可用作吸能缓冲材料使用。
The relationship between the compressive behavior and the energy absorption capability of the porous aluminum alloy was investigated. The results show that, the elastic modulus increases from 270?MPa to 550?MPa and the yield strength increases from 3?MPa to 20?MPa with the decrease of the pore diameter; the yield strength increases with the decrease of the porosity; the porous aluminum alloy has high specific strength and energy absorption capability. Its σ 2/3 c/ ρ (beam) and σ 1/2 c/ ρ (board) reach to 2.5 ～ 7.0 and 1.6 ～4 respectively. These data correspond to those of steel and Al.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2001年第z2期81-85,共5页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助 (5 0 0 810 0 2 )
关键词
多孔铝合金
孔径
孔隙率
比强度
能量吸收
porous aluminum alloy
pore diameter
porosity
specific strength
energy absorption
