Numerical Analysis of Effects of Inhomogeneous Matrix Microstructures on Deformation Characteristics in Aluminum Matrix Composites

摘要

Recently it has been reported that PFZ layers, ranging several ten and 100 nm in thickness, and coarse interfa- cial equiribrium precipitates were formed around reinforcements, and that solute atoms were simultaneously segregated toward the interface. In this study, SiC whisker-reinforced 6061 Aluminum alloys are adopted as model materials. Effects of such locally-inhomogeneous microstructures of a matrix on the deformation and fracture characteristics of the MMCs are analyzed by means of the elastic-plastic finite element analysis.