65. Influence of Friction Pressure/Time on Mechanical and Microstructural Characteristics of Rotary Friction Welded LM25/10% SiC Aluminium Matrix Composites

The aluminium matrix composites have wide applications as structural components aerospace and automobile industries. Adding SiC to the aluminium matrix gives great value in terms of enhancing the mechanical properties of the material. Most of the materials used as structural components undergo not only forming processes but also joined by welding processes. Thus in this research work, the investigation is carried out on the rotary friction welded aluminium matrix composites, namely LM25 with added 10% SiC. The effect of the process parameter, i.e. friction pressure on the mechanical and microstructural characteristics, was analysed and studied. From the microstructural examination and mechanical property evaluation, it was found that increasing the friction pressure increases the mechanical properties and also aids in achieving finer microstructure.