A Detailed Study Analysis of Mechanical Behavior of High Temperature Materials

In this dissertation, I conducted a detailed study and analysis over mechanical behavior of the high temperature materials used in aircraft gas turbines. The most-demanding applications for high-temperature materials are found in the aircraft jet engines, industrial gas turbines, and nuclear reactors. However, many furnaces, ducting, and electronic and lighting devices operate at such high temperatures. To perform successfully and economically at high temperatures, a material must have two essential characteristics: it must be strong, because increasing temperature tends to reduce strength; and it must have resistance to its environment, because oxidation and corrosion also increase with temperature. Materials at elevated temperature may affect the properties of combustor materials so that they may subject to thermo - mechanical fatigue, creep – fatigue and other micro structural deformation. I performed a detailed analysis over structural behavior of existing materials to optimize the thermo – mechanical properties in order to improve the aerodynamic characteristics of combustion gases and improve safe-life of the materials.