アルミニウムリサイクル材を原料としたポーラスアルミニウム充填アルミニウムパイプのfriction stir back extrusionによる作製

抄録

In this study, porous aluminum (Al) filled Al pipe was fabricated from recycle Al chips by friction stir back extrusion (FSBE). It was shown that curl powder can be consolidated to form an Al pipe by the plastic flow generated during FSBE. A mixture of Al burrs of Al high-pressure die-castings and a blowing agent powder can be sufficiently consolidated to form an Al precursor that is coated on the inner surface of the fabricated Al pipe. By heat treatment of the precursor coated Al pipe, porous Al was sufficiently filled in the Al pipe in the entire sample. From compression tests of the sample, it was shown that the Al pipe of the sample was sufficiently consolidated, and the combination of porous Al and Al pipe improves the compressive properties of Al pipe and porous Al.

Fig. 4 (a)-(d) Deformation behavior during compression tests of porous Al filled Al pipe. (e) Stress–strain curves of porous Al filled Al pipe and Al pipe.