Metallography Analysis

Metallography Analysis

Metallography is defined as the study of components and physical structure of metals, which is great support in testing the quality of your metals. Sample are prepared by various methods to examine the indications or structure contained within To test the mechanical properties of various materials, such as hardness testing. Metal testing is an important part of testing the quality of metals. It is an important step in determining the quality of the metal by analyzing its microstructure.

1. Microstructure analysis

We can cover all the metal used widely in industry to evaluate products and materials. The microstructure is used to provide information such as defect, damage representation or grade of the metal. It is often used in a wide range of industries to assess the properties of materials and workpieces. The laboratory can examine a wide range of microstructures, such as grain size, ferrite content, and so on. and analysis report with details and photos. Microstructure analysis in industrial applications can be divided into 2 types.

  • Destructive microstructure inspection
  • Non-destructive microstructure tracing Replica

2. Macrostructure analysis

Macrostructure represent in low magnification up to 1-50 times. It reveals the weldment layers or defects that considered in welding procedure and welder qualification specifications. Macrostructural analysis is the examination of metal or workpieces. By shooting at low magnification sandpaper polishing metal etching gives an overall picture of the workpiece in order to analyze the damage that occurs in the workpiece For the benefit of quality control Analysis of macrostructures in industry includes:

  • Analysis of sulfur in steel
  • Grain size measurement Grain shape analysis
  • Weld quality inspection
  • Checking the quality of surface welding work
  • Checking the quality of castings

3. Grain Size Number

According to ASTM E112, AS 1733, ISO 643 and JIS G0551, these test methods of determination of average grain size in metallic materials are primarily measuring procedures and, because of their purely geometric basis, are independent of the metal or alloy concerned. In fact, the basic procedures may also be used for the estimation of average grain, crystal, or cell size in nonmetallic materials.

4.Replica Test

Nondestructive material examination by the means of replica technique is a metallographic method which is based upon the examination of the microstructure of the surface metal. Replica technique can be performed on site and enables experts to analyze and to determine creep damage. It can present the information to estimate the remaining service lifetime of a piece of equipment.