macro micro weld

Metallography Testing

Metallography is the study of the physical structure and components of metals by using Microscope.  Metallography is a detailed analysis of micro-structural changes when a metal is exposed to heat treatments. These micro structural changes have a direct effect and correlation of the metals mechanical behavior.  Often it is necessary to check the metal's micro structure for the changes occurred.

The laboratory is equipped to carry out tests to determine

  • Macrostructural examinations for rolled bars and grain flow tests for forgings.
  • Microstructural examinations. (including evaluation of % of phases by image analysis and SMP methods)
  • Inclusion Rating. (as per ASTM E45)
  • Decarburization depth
  • Case depth evaluation
  • Coating thickness measurements
  • Weld evaluations
  • Weld length, Throat length, Depth of penetration
  • Grain size determination (by lineal intercept method, comparison methods and by automatic Image analysis methods)
  • Phase Identification
  • Depth of Penetration
  • Nitriding depth measurement
  • Grain Size
  • Grain Flow
  • Nodularity
  • Particle Count
  • Evaluation of surface coatings for contaminants
  • Failure Analysis
  • Material Defects
  • Heat Treatment Condition
  • Surface Carburization