Abstract
Stainless steel fiber reinforced aluminum with using zinc to form the interface layer was fabricated, and bending of the composite as secondary forming was tried. That composite was fully strengthened at 643K which was just below eutectic temperature of Zn-Al alloy (655K). Over the eutectic temperature, the fiber-matrix interfacial stress τ of the composite was remarkably reduced. Taking advantage of loose state of the interface layer, bending of the composite became possible without fiber breakage and buckling which was impossible in the case of the composite at lower temperatures or without the interface layer. The once remarkably reduced τ could be increased by mutual diffusion between the interface layer and the matrix caused by heat treatment, and the composite was fully strengthened even at 673K which was beyond the eutectic temperature. Accordingly, the possibility of realizing long fiber reinforced metal which could be secondarily formed was clarified.
