Zeiss research grade Axio Scope.A1 optical microscope

Amplification of Microscope: 12.5X——1000X

 

Main function of metallographic microscope:

· 1. The structure of iron and steel materials (conventional structure, precipitated phase, Detrimental phase)

·  analysis, morphology photography.

· 2. Type analysis and grade evalsuation of inclusions of iron and steel materials.

· 3. evalsuation of grain size of iron and steel materials.

· 4. Widmannstatten structure analysis and grade evalsuation of iron and steel materials.

· 5. Banded structure analysis and grade evalsuation of iron and steel materials.

· 6. Decarburization layer analysis on surface of iron and steel materials.

· 7. evalsuation of spheroidization grade of iron and steel materials.

· 8. Depth measurement and morphology analysis of surface clad layer, infiltration layer and hardening layer

·  of iron and steel materials.

· 9. Defects analysis of iron and steel materials (continuous casting billet, rolled material, forging material, etc.).

· 10. Failure analysis of finished products and parts of iron and steel materials.

Microstructure of seamless steel pipe

· 20G normalizing     Ferrite and Pearlite    Grain size 8.0     500X

27SiMn Q+T     Tempered sorbite     Grain size 8.5     500X  

Parts microstructure

Ball ground cast iron guide plate  Pearlite + ferrite + graphite 500X

Abnormally thick columnar crystals at elbow weld of pipeline    

Ferrite + pearlite + bainite     12.5X