Metallography Testing Laboratory
Metallography is that branch of science which deals with the study of properties and structure of metals and alloys by making use of X-Ray Diffraction and other Microscopic Techniques. The main objective of carrying out metallographic tests is to examine the microstructure of any metal or an alloy sample. The three dimensional arrangement of the atomic elements ranging from 1µm to 1mm is examined by the means of Light Optical or Scanning Electron Microscope.
Some of the interesting features which are studied under microstructure are phase transformation, volume fractions, grain size, phases, grain boundaries, morphology, effective case depth, banding, non-metallic inclusions in steel, porosity, cross contamination and several others. The microstructures signify the mechanical properties such as corrosion resistance, toughness, strength, mechanical workability and ductility and influence their applications. The specimen preparation for carrying out metallographic testing is a very crucial step and JK LAB has set a well devoted workshop for this purpose. The steps that needs to be followed for sample preparation are documentation, sectioning, cutting, mounting, planar grinding, rough polishing, final polishing, etching, microscopic analysis and hardness testing
Significance of Metallographic studies:
Tests under Metallographic Testing: