Penjelasan terkait heat treatment pada baja

1. Temperature Regions

2. Effect of Alloy

3. Transformation
on Heating

4. Transformation on Heating

5. Decomposition Austenite
 Austenite
Pearlite
 + Fe3C
Slow
Bainite
 + Fe3C
Medium
Martensite
Quench
Martemper
 + Fe3C
Temper

6. Decomposition Austenite

7. Effects of coooling of austenite transformation

8. Series of different cooling rates curves in TTT diagram

9. Structures of tempered states of martensite, troosite, sorbite and spherodite

10. Time Temperature Transformation

11. Transformation
on Cooling

12. TTT Diagram Steel 0.8% C

13. Isothermal
Transformation
(T-T-T)
Diagram
(Eutectoid
Steel)

14. Microstructures
Coarse pearlite Fine pearlite

15. Microstructures
Upper Bainite
Lower Bainite

16. Microstructure
Martensite

17. TTT Diagram Steel 0.5% C

18. Rate of Nucleation – Growth Pearlite
N  G
N = G
N  G

19. Austenite Decomposition

20. Decomposition Austenite to
Pearlite

21. Decomposition Austenite to
Pearlite

22. Austenite Decomposition

23. Decomposition Austenite to
Martensite

24. Grains Size Effect on TTT
Diagram

25. Alloy Effect on TTT Diagram

26. CCT - TTT Diagram

27. Martensite Start - Finish

28. Hardenability Test
(a) Jominy end-quench test (b) Typical hardness distribution

30. Jominy Hardness Curves
(a) Various alloy steels with (b) Plain carbon steels with
the same carbon content varying amounts of carbon

31. Harden ability

32. Grain Size

33. Martensite in iron and
steel

34. Retained Austenite

35. Rate of Nucleation – Growth Pearlite
and Bainite

36. Percentage Martensite