Microstructure, SEM and TEM images of Steels and Al alloys from the work of Dr. R. Narayanasamy Retired Professor (HAG), Department of Production Engineering, NIT - TRICHY, Tamil Nadu, India

1. Microstructure, SEM & TEM Images of Steels & Al Alloys
Dr.R.Narayanasamy, B.E., M.Tech., M.Engg., Ph.D., (D.Sc.)
Retired Professor,
Department of Production Engineering,
National Institute of Technology,
Tiruchirappalli-620015, Tamil Nadu, India.

3. Coarse Pearlite Formed at 700˚C
(Annealed Microstructure)
Cementite
Ferrite
Grain
Boundary

4. Fine lamellar peralite Formed at 600˚C
Fine
Pearlite
(Cementite
+ Ferrite)

5. Lower Bainite Formed at 315˚C
Bainite

19. Microstructure of Annealed Stainless steel 430 Grade

20. Microstructure of Annealed High Strength and Low Alloy
Steel

21. Microstructure of Annealed IF Steel

23. Fractrography SEM Image of Fractured IF Steel
Ligament Thickness (Space
between two consecutive
Dimples)
Void
Typical Ductile Fracture
Dimple

24. Void
Dimple
Fractography SEM Image of IF Steel

25. Void Dimple
Ligament
Thickness
Fractography SEM Image of IF Steel

26. Fractography SEM Image of HSLA Steel
Ligament
Thickness
Dimple
Void

27. Second
Phase
Particles
Fractography SEM Image of EDDQ Steel

28. Microstructure of Annealed Stainless Steel 430 Grade
(Ferritic Stainless Steel- Ferrite Grains)

29. EBSD Microstructure of Annealed Stainless Steel 430 Grade
(Ferritic Stainless Steel- Ferrite Grains)

30. EBSD Microstructure of Annealed Stainless Steel 430 Grade
(Ferritic Stainless Steel- Ferrite Grains)

31. Fractography SEM Image of Stainless Steel 430 Grade
Void
Dimple
Ligament
Thickness

42. TEM image of α-Fe2O3/g-C3N4

43. TEM micrographs of Al 5083 alloy of (a) solution treated (ST), (b) cryorolled 90%
reduction (CR).

44. Thank
You