Microstructure and Mechanical Properties of Nano Alumina Particulate Reinforced A356 Nano Composites

摘要

A356, which is much lighter than steel, is an attractive replacement material. Therefore, it is of great interest to enhance its properties. There is strong evidence that the microstructure and mechanical properties can be considerably improved if nano particles are used as reinforcement to form metal-matrix- nano-composite (MMNC). In this thesis, a detailed analysis of alumina i.e.., 60μm is reduced to 32nm by high energy ball milling. For every 5hrs alumina powder is taken and calculating the crystallite size by X-Ray Diffraction. In this thesis, a detailed analysis of the microstructure and mechanical properties is provided for an A356 alloy enhanced with alumina nano particles via ultrasonic processing