Metallurgists often devise the complex heat-treating cycles or schedules for optimization of mechanical properties of alloys. In the aerospace industry, super alloy undergoes 5 or more different operations of heat treating for developing desired properties. all these operations are pre-planned such that there couldn`t be any aspect which can cause failure of the process by giving wrong results. Quality problems result from this heat treating, depending upon accuracy of temperature controls of the furnace & timer. Such operations are normally divided into the following basic techniques: –