Microstructure and grain growth of the matrix of SiCf/Ti-6Al-4V composites prepared by the consolidation of matrix-coated fibers in the β phase field

The microstructural characteristics in the matrix of SiCf/Ti-6Al-4V composites prepared by consolidation of the matrix-coated fibers in the high-temperature β single-phase field were investigated using both experimental and modelling methods. Some of the critical microstructure features, like volume fraction of component phases, composition of matrix alloys and matrix morphology were systematically studied, providing valuable insight into the microstructural characteristics in the matrix of SiCf/Ti-6Al-4V composites. In order to assist in understanding the grain growth occurred in the matrix during consolidation processing, a theoretical model was developed. Excellent agreement between theoretical and experimental results was achieved.