Metallic materials such as steels and titanium alloys are widely used in transportation equipment such as cars and airplanes, in the steel framework of building such as the Tokyo Sky Tree, and in the daily necessities such as knives and frying pans. Metals can be obtained various functions by containing other elements, i.e., alloying. For example, steel with over 10.5 mass% chromium exhibits excellent corrosion resistance, known as "stainless" steel. In our research group, we examine the effects of alloying elements and heat and deformation processes on the microstructure formation to produce metallic materials for automobiles and aircraft.