. "Microstructure is the small scale structure of a material, defined as the structure of a prepared surface of material as revealed by a microscope above 25\u00D7 magnification. The microstructure of a material (such as metals, polymers, ceramics or composites) can strongly influence physical properties such as strength, toughness, ductility, hardness, corrosion resistance, high/low temperature behavior or wear resistance."@en . . . .