胞状铝(合金)的准静态压缩性能  

The static compressive properties of cellular Al and cellular Al alloy

作　　者：郑明军[1] 何德坪[1] 

机构地区：[1]东南大学材料科学与工程系,江苏南京210096

出　　处：《功能材料》2005年第4期536-538,542,共4页Journal of Functional Materials

基　　金：国家自然科学基金重点资助项目(50231010);国家自然科学基金资助项目(50081002)

摘　　要：测量了新型轻质(0.14ρ0～0.09ρ0,ρ0为纯铝的密度)高强度胞状铝合金(ZL111)和胞状纯铝的压缩应力(σ)-应变(ε)曲线.胞状铝合金的压缩屈服强度σs 比胞状纯铝高40%以上,其σ-ε曲线呈锯齿状,平台斜度((dσ)/(dε))比后者小.提出了确定泡沫金属材料致密化起始点εD的方法,为实际应用和科学研究提供了依据.The compressive stress(σ)-strain(ε) curves of cellular Al alloy (ZL111) and cellular Al have been investigated. The cellular Al alloy has a higher collapse stress σ_s than that of cellular Al by 40%. The rake of the plateau of the compressive curve of the cellular Al alloy was smaller than that of cellular Al. The way that demarcates the densification starting point ε_D of cellular metals has been given. It will be helpful in application and research.

关 键 词：胞状铝合金 孔隙率 致密化起始点 

分 类 号：TG146[一般工业技术—材料科学与工程]