Mechanical and Metallurgical Behavior of Friction welded Dual Nano Particles Reinforced Armour Grade Al based Nanocomposite joints in optimized Condition
Abstract The transformation of world from micro to Nano level are rapidly increasing. The Nano particles play a major role in the improvement in materials properties due to its bonding nature. Therefore, in this research work, the hard Nano particles were used instead of micron level particles for fabrication of armour grade AA7075 T651 aluminum Metal Matrix Nano Composites (MMNCs) by stir casting process. Friction Welding (FW) is a well established solid state welding process which is used to produce the joints with minimum defects over fusion welding process. Though FW produces good joints, there are many areas of concern while characterizing its joints and so it is important to have complete control over the relevant process parameters for producing good weldments with better efficiency and hence the joints were optimized by Response Surface Methodology (RSM) Thus, the ultimate aim of this research work is to produce the MMNC joints with maximum tensile strength and the integrity of the joints are characterized by OM, SEM in order to determine its quality.