The PPT about Microstructure studies of Stainless steels based on the research work done by Dr. R. Narayanasamy, Retd Professor, NIT Trichy

1. Microstructure, TEM & SEM Images of Stainless Steels
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.

2. Rolling
direction
Ferrite grains
Microstructure of Ferritic Stainless Steel 430 Grade (Annealed)

3. Rolling
direction
Elongated
Ferrite grains
Microstructure of Ferritic Stainless Steel 430 Grade (Cold Rolled)

4. EBSD Microstructure of Closed Annealed Stainless Steel 430 Grade

5. EBSD Microstructure of Cold Rolled Stainless Steel 430 Grade
Cold rolled
grains

6. Void
Dimple
Ligament
Thickness
SEM image of Fracture Surface of Closed Annealed Stainless Steel 430 Grade

7. Void
Ligament
Thickness
Dimple
SEM image of Fracture Surface of Cold Rolled Stainless Steel 430 Grade

8. Microstructure of Annealed Austenitic Stainless Steel 202 Grade

9. Austenitic
Grains
Twin
Band
Microstructure of Austenitic Stainless Steel (Annealed) 304 LN Grade

10. Austenite
Grains
Grain
Boundary
Microstructure of Austenitic Stainless Steel ( Solution Annealed) 316 Grade

11. Austenite
Grains
Grain
Boundary
Twin
Band
Microstructure of Austenitic Stainless Steel ( Annealed) 316 L Grade

12. Microstructure of Martensitic Stainless Steel

13. Microstructure of Laser Treated Martensitic Stainless Steel

14. Hardened &
Tempered
Martensitic
Structure
Microstructure of Hardened and Tempered Martensitic Stainless Steel

15. Sumitomo Metals Developed High Strength and High Corrosion Resistant Alloy,
Super 17Cr OCTG

16. HAZ Microstructure in Super Martensitic Stainless Steels - TWI

17. Welded Microstructure without heat treatment of Martensitic Stainless Steel

18. Microstructure of Annealed Duplex stainless Steel

19. Microstructure of Annealed Duplex stainless Steel for Various Nickel Content

20. Microstructure of Welded Duplex stainless Steel 2205 Grade

21. SEM Image of Fractured Austenitic Stainless Steel
Void
Dimple
Ligament
Thickness

22. SEM Image of Fractured Martensitic Stainless Steel

23. SEM Image of Martensitic Stainless Steel

24. SEM Image of Fractured Surface of Duplex Stainless Steel
Cup and Cone Fracture
After Tensile Test

25. SEM Image of Fractured Surface of Duplex Stainless Steel
Void
Dimple
Ligament
Thickness

26. SEM Image of Cleavage Fracture in Duplex Stainless Steel

27. SEM Image of Brittle Fracture in Duplex Stainless Steel (Thermal Aged)

28. 800°C-100h sensitized 2205 duplex stainless steel

29. SEM Image of Intergranular Failure in Duplex Stainless Steel

30. TEM Image of Duplex Stainless Steel

31. TEM Image of Austenitic Stainless Steel 304 Grade

32. SEM Image of Brittle Cleavage Fracture

33. SEM Image of Super Duplex Stainless Steel (Corrosion)

34. Thank
You