Metallographic Mounting

The primary purpose of mounting metallographic samples is for convenience in handling samples of difficult shapes or sizes during the subsequent steps of metallographic preparation and examination. A secondary purpose is to protect and preserve extreme edges or surface defects during metallographic preparation. The method of mounting should in no way be injurious to the […]

Metallographic Grinding and Polishing Guide

Types of Metallography Preparation Mechanical Preparation & Etching Mechanical preparation is the most widely used method in metallographic sample preparation. This approach involves the systematic refinement of the sample surface through material removal, with the primary objective of eliminating deformation and damage introduced during prior processing steps. Material removal is achieved using abrasive media applied […]

Metallographic Etching

Metallographic etching encompasses all processes used to reveal particular structural characteristics of a metal that are not evident in the as-polished condition. Examination of a properly polished specimen before etching may reveal structural aspects such as porosity, cracks, and nonmetallic inclusions. Indeed, certain constituents are best measured by image analysis without etching, because etching will […]