Metallography – It All Depends on the Illumination!

Metallography is the study of the microstructures of all types of alloys. As a scientific discipline it examines and identifies the physical structure as well as constituents, inclusions or phases in alloys, typically using microscopes.

To visualize the properties of alloys under the microscope, different techniques are used. Most examinations are performed in brightfield incident light. Sometimes, other contrast techniques such as darkfield or differential interference contrast (DIC) are applied or it may be necessary to etch the sample to obtain the knowledge required. Further information is given in an introduction to metallography on the microscopy portal Science Lab.

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