The interior pore of open-cell aluminium foams filled with bronze foams is a new method of preparing aluminium foams composite. The voids of bronze foams were fabricated by in situ thermal decomposition of space-holder in a powder metallurgical sintering process. Cu₃Sn phase content is observed to increase through phase transformation at the expense of Cu₆Sn₅ and aluminium-matrix during isothermal aging. The effect of bronze foams porosity on the interface microstructure between aluminium-matrix and the filler has been investigated. The ‘bulge’ shape appears in the compressive stress-strain curve of aluminium foams composite, which is sharply different from single-component metal foams. According to the characteristic of the stress distribution, the stress-strain curves can be divided into 4 stages: quasi-linear region, stress decrease region, plateau stress region and densification region. The effect of bronze foams filler relative density on the first maximum stress and absorbed energy density of aluminium foams composite was also studied. The results suggest incorporating bronze foams in the aluminium foams pores is an effective method to improve the mechanical properties of open-cell aluminium foams.

用青铜泡沫填充开孔泡沫铝的内孔是制备泡沫铝复合材料的一种新方法。泡沫青铜的空隙是通过粉末冶金烧结过程中的空间支架的原位热分解制造的。观察到Cu ₃ Sn 相含量通过相变增加，但牺牲了 Cu ₆ Sn ₅和铝基体在等温老化过程中。研究了青铜泡沫孔隙率对铝基体和填料之间界面微观结构的影响。泡沫铝复合材料的压缩应力-应变曲线中出现了“凸起”形状，这与单组分泡沫金属明显不同。根据应力分布特点，应力-应变曲线可分为4个阶段：准线性区、应力降低区、平台应力区和致密化区。研究了泡沫青铜填料相对密度对泡沫铝复合材料第一最大应力和吸收能量密度的影响。