Microstructure of castings

The microstructure of castings refers to the small-scale arrangement of the materials, like grains and phases, inside the metal after it is cooled and solidified. This internal structure affects the casting's strength, toughness, and appearance. It includes features such as grain size, shape, and distribution of different mineral phases, which form during solidification. Controlled microstructure ensures the casting has desirable properties and quality. Essentially, it’s the detailed internal pattern that determines how the casting performs in real-world use.