Metallographic Specimen Preparation
Metallographic Specimen Preparation is one of five main operations in the preparation of metallographic specimens. It involves removing a conveniently shaped, representative specimen from a larger sample. Mounting, grinding, polishing, and etching are the remaining operations.
Examinations of metal structures are usually done on parts that have been removed from a bulk specimen. Only a single section surface is often prepared, and the structural features exposed on this surface can be studied using a variety of techniques like optical examination, scanning electron microscope.