In order to determine the microstructure of materials, it is always necessary to study the structure by light and electron microscopes. The study of etched surfaces of metals and alloy parts by light microscopy has always been one of the most basic and cost-effective methods of studying microstructure.
Usually, if we need to get more details from the metal surface and identify the phases along with determining the exact chemical composition of that phase, we can use advanced electron microscopes (FE-SEM and SEM) designed for this purpose.
