Metallurgical Abstracts on Light Metals and Alloys vol.54
Compressive Properties of Three-Layered Porous Aluminum Fabricated by Spacer Method Using Dissimilar Alloy Powders
Yoshihiko Hangai1, Mizuki Ando1*, Ryosuke Suzuki1, Masaaki Matsubara1, Takao Utsunomiya2 and Nobuhiro Yoshikawa3
1Graduate School of Science and Technology, Gunma University
1*Graduate Student, Graduate School of Science and Technology, Gunma University
2Faculty of Engineering, Shibaura Institute of Technology
3Institute of Industrial Science, The University of Tokyo
[Published in J. Japan Inst. Met. Mater. Vol. 85, No. 2 (2021), pp. 84–87]
https://www.jstage.jst.go.jp/article/jinstmet/85/2/85_J2020044/_article/-char/en
E-mail: utunomiy[at]sic.shibaura-it.ac.jp
Key Words: foam, functionally graded, aluminum, sintering
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 (70% / 80% / 75%), exhibited clear multiple plateau regions corresponding to the deformation of each layer. In contrast, when plateau stress of each layer had a close value (70% / 70% / 70%), such as three–layered porous aluminum with homogeneous porosities, exhibited no clear multiple plateau regions.
(a) Deformation behavior and (b) stress–strain curves of three-layered porous aluminum consisting of AC4CH (70%) / pure aluminum (80%) / A6061 (75%) and corresponding uniform porous aluminum.