Microstructure of Low, Medium and High Carbon Steels.pptx

Microstructure of Low, Medium and High Carbon Steels
by Dr. R. Narayanasamy, Retired Professor (HAG), Department of Production Engineering, NIT - Trichy, Tamil Nadu, India

1. Microstructure of Low, Medium and High Carbon 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. Microstructure of Annealed Medium Carbon Steel Ferrite Grain Iron Carbide / Cementite Grain size is smaller, due to the presence of Iron Carbides along grain boundaries

3. Microstructure of Annealed Low Carbon Steel Ferrite Grain Grain Boundary Grain size is some what bigger compared to Low Carbon Manganese Steel

4. Microstructure of Normalised Low Carbon Manganese Steel Ferrite Grain Manganese Carbide Grain size is smaller compared to Low carbon steel

5. Microstructure of Low-Alloy-Medium-Carbon Steels After Quench-Hardening

6. Microstructure of Low-Alloy-Medium-Carbon Steels After Quench-Hardening Martensite

7. SEM micrograph, corresponding to single-tempered NiCrSi steel Tempered Martensite

8. SEM micrograph, corresponding to double-tempered NiCrSi steel Tempered Martensite

9. SEM micrograph, corresponding to triple-tempered NiCrMoV steels Tempered Martensite

10. Pearlite Microstructure of Annealed High Carbon Steel

11. Microstructure of Hardened and Tempered Bearing Steel Tempered Martensite

12. Decarburised region Microstructure of Decarburisation of Steel

13. Microstructure of Dual-phase High-Carbon Steel Percipitate Grain Boundary

14. Ferrite Cementite Microstructure of Peralite Steel

15. Ferrite Carbide Microstructure of Iso -Thermally Treated Steel

16. Microstructure of High Carbon Spheroidzed Steel Globular shaped Cementite

17. Microstructure of Pearlite High Carbon Steel Pearlite Pearlite = Ferrite+Cementite

18. Microstructure of Hardened High Carbon Steel (Cast Microstructure)

19. Microstructure of High Strength Low Carbon Steel Feerite Grain Boundary Pan Cake type Grains suitable for Deep-draw Operation

20. Microstructure of High carbon micro alloyed martensitic steel with ultrahigh strength-ductility

21. Microstructure of modern steels for automotive applications

22. Microstructure of Upper Bainite

23. Microstructure of Lower Bainite Needle like structure

24. Martensitic Microstructures

25. Bainitic microstructure containing retained austenite and martensite

26. Microstructure of Martensitic Steel Needle like structure of Martensite

27. Microstructure of Martensitic Steel

28. TEM image of Lath Martensite in Steel Lath Martensite

29. Microstructure of Plate Martensite in Steel Plate Martensite

30. a) Martensite and b) Tempered Martensite

31. Microstructure of Iron Nickel Martensite

32. Microstructure of Lower Bainite

33. Microstructure of Tempered Martensite

34. References: Authors of Technical articles and Scopus Journals are Acknowledged.

35. Thank You