Polishing is the process of creating a smooth and shiny surface by using rubbing or a chemical action.
In metallography polishing is used to create a flat, defect free surface for examination of a metal's microstructure under a microscope. Silicon based polishing pads or diamond solution can be used in the polishing process. Metallograhy is a science, related to metallurgy that looks at the composition and structure of metals and alloys. ... Al-Si microstructure at 40x magnification Microstructure refers of the microscopic description of the individual constituents of a material. ...