Finding the grain boundaries in materials is vital because the material’s grain structure very often defines its mechanical properties. An example is given in the Hall-Petch relation, where strength ...

In the metallographic laboratory, grain analysis of metallic and alloy samples is an effective quality control procedure. The majority of metals have grain boundaries in their crystalline structure.

IN recent correspondence, Mr. P. A. P. Moran 1 has suggested a simple method of finding the surface area of small objects from their average area of projection. Another simple method of finding the ...