Influence of deformation temperature on matrix metal flow and whisker reorientation in SiCw/6061 aluminium alloy composite during compressive deformation

Abstract

The matrix metal flow and whisker reorientation in directionally aligned SiCw/6061 aluminium alloy composites during compressive deformation were investigated by observing the changes in whisker orientation and specimen shape before and after compression. The results indicate that matrix metal flow and whisker reorientation during compressive deformation are dependent on deformation temperatures. The matrix metal can flow more uniformly at a higher temperature. Furthermore, the whiskers in the composites can not reorientate during compressive deformation at a lower temperature, while they can reorientate during deformation at a higher temperature in a ring specimen.