異種合金粉末を原料としたスペーサ法により作製された3層構造ポーラスアルミニウムの圧縮特性

抄録

In this study, three-layered porous aluminum consisting of AC4CH (porosity: 70％) / pure aluminum (80％) / A6061 (75％) / and AC4CH (70％) / pure aluminum (70％) / A6061 (70％) were fabricated by a sintering and dissolution process. When plateau stress of each layer was significantly different, such as three-layered porous aluminum with varying porosities, exhibited clear multiple plateau regions corresponding to the deformation of each layer. In contrast, when plateau stress of each layer had a close value, such as three-layered porous aluminum with homogeneous porosities, exhibited no clear multiple plateau regions.

Fig. 4　(a) Deformation behavior and (b) stress-strain curves of three-layered porous aluminum (Sample A) and corresponding uniform porous aluminum.