SEM holds important application value in metallic materials research. It provides high-resolution surface morphology images, helping researchers observe microstructural features like grain size, phase distribution, crack morphology, and surface defects. Through secondary electron imaging, SEM clearly reveals microstructural changes in metals during processing, heat treatment, or corrosion, providing intuitive evidence for performance evaluation and failure analysis. Furthermore, coupled with EDS, SEM enables elemental analysis to determine alloy composition distribution, deepening the understanding of the relationship between material properties and composition. This multifunctional analytical approach makes SEM an indispensable tool in metallic materials science research and industrial applications, widely used in material development, quality control, and failure analysis.
