Importance Of Metallography
The properties of metals highly depend on their structures. The internal structure determines how materials perform under a given application. The effects of most industrial applied to metals to control their micro structures. The branch of materials science dealing with microscopic examination of metals is called metallography. Metallography has proven to be one of the most accurate and effective means of evaluating materials and explaining their behavior .metallography or metallographic analysis is the study of microstructure of materials by various methods, especially light and electron microscopes. Microstructural analysis of a materials microstructure helps in determining if the material has been processed correctly and is therefore a critical step for determining procedure reliability or quality control. The …show more content…
Normal metallographic examination usually falls in between two extremes. Grain size and shape, porosity, cracks, second phases, and fracture processes are investigated. From a brief review of these parameters, metallography can be shown to be an extremely powerful analytical tool. For example, the mechanical properties of materials depend upon grain size and shape, and the amount, nature, and distribution of second phase. Thus metallography can 'predict ' the mechanical properties of given material. It basically includes techniques that is used to prepare specimens for examining purposes and interpreting the structures. The most important part of metallography would be specimen preparation. A specimen must come across with all the requirements that ensures correct observation and interpretation of the microstructure. Specimen preparation consists of following steps, 1. Sample selection 2. Sectioning 3. Grinding 4. Polishing 5.
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