The Physical Properties of Hybrid Metal Matrix Composites Made of Al6061, Silicon Carbide,and Boron Carbide

Abstract

In demand of today's and future Al alloys are the best suitable materials for engineering applications. The development of AMCs needs new materials able to match by increasing strength in the place of conventional materials. The present article contains Al6061base matrix and reinforcement used as Silica carbide (SiC), boron carbide (B4C) with different composition percentages (5, 10, 15), and balancing of B4C (5).The Al hybrid composites are fabricated via stir die-casting process. Mechanical properties are investigated as per ASTM standards procedure incorporating with the variation of specimen’s samples. The results showed that higher thermal conductivity, tensile strength, hardness indention, and lower coefficient of thermal expansion are obtained at SM-4(Al-15SiC-5B4C) of hybrid composites. However, the experimental data of thermal conductivity and coefficient of thermal expansion are compared with theoretical data by Rule of mixtures or turners model.