ADC12ポーラスAl/純Al複層パイプの作製

抄録

Porous aluminum is a multifunctional material with ultra light weight and high energy absorption properties. In the past study, pure Al dense pipe were fabricated and combining it with ADC12 porous Al by applying friction welding. Precursor of ADC12 porous Al was fabricated by adding blowing agent powder into ADC12 plates by means of applying friction stir processing. The precursor was put into the fabricated pure Al pipe, and the rotating tool was pressed into the precursor. Friction heat was generated and ADC12 precursor / pure Al dense pipe composite materials were fabricated by friction welding. It was shown that metal bending between porous Al and pure Al pipe of the composites can be realized. Therefore in this study, ADC12 porous Al / pure Al bilayer pipe were fabricated to combine ADC12 porous Al to the outside of pure Al by applying friction welding. As the result, this specimen with porosities of 73.6 % was successfully fabricated.