ADC12ポーラスアルミニウムとステンレス金網の複合化による高強度化の検討

Abstract

Porous aluminum has lightweight and low density, with high shock absorption, sound absorption, and insulation properties, but generally has downward bending and tensile strengths. Improving its bending and tensile strengths is necessary for the industrial use of porous aluminum. In this study, composite materials with wire mesh inside porous aluminum were fabricated. By fabricating a composite material of porous aluminum and stainless steel wire mesh, we considered that the internal wire mesh could improve the tensile strength of the porous aluminum. The wire mesh was placed between precursors to fabricate the composite material of porous aluminum and stainless steel wire mesh. The precursors were heated and foamed, and pressed immediately after foaming. Scanning electron microscopy (SEM) showed no gaps at most boundaries between the porous aluminum and the wire mesh. It was also confirmed that there was no clear joint boundary between the porous aluminum foamed from the two precursors. Tensile test results showed that the tensile strength of the composite material in this study was the sum of the strength of the porous aluminum and the wire mesh, and that the strength was increased.