What are the differences in composition and microstructure between the steels and cast irons?

Understanding of Topics Expected of Students
Chapters 10-17

1. How much do you know about the important phases such as austenite, ferrite, cementite?

2. How much do you about pearlite, bainite, and martensite? How are they made?

3. Do you know how to read T-T-T diagrams (also known as isothermal transformation diagrams)?

4. What is marquenching process? Austempering process?

5. What is a tempered martensite?

6. What are the major types of cast irons? What makes them different?

7. What are the differences in composition and microstructure between the steels and cast irons?

8. What is the hardenability of steel?

9. How much do you know about Jominy end-quench test? What is the purpose of this test?

10. What is Dqe? What does it represent?

11. Do you know how to use hardenability curves to determine hardness of steel?

12. Why is water more effective than oil in quench-hardening of steel?

13. What is the precipitation hardening of alloys? How is it done?

14. What is natural aging process as oppose to artificial aging? What is overaging?

15. What is Avrami equation? What does it describe? Do you know how to determine the Avrami equation? How is rate of transformation calculated?

16. What is the functionality of an atom?

17. What is van der Waals force?

18. What are the major types of polymers based on their common properties? Based on molecular structure?

19. Why are thermosetting polymers not recyclable?

20. What are the major methods of polymerization? Do you how each of them is accomplished?

21. What is cross linking of polymers? What are the conditions needed for cross linking process?

22. What is vulcanization of polymer material?

23. What is the oxidation mechanism of polymers?

24. Do you know how to calculate molecular weight of a monomer? That of a polymer or a copolymer?

25. How is weight-average molecular weight determined?

26. How is the weight-average degree of polymerization calculated?

27. What is degree of polymerization? How is it determined?

28. Pay attention to analysis/calculation of addition polymerization, condensation polymerization, and
crosslinking processes.

29. What are the molecular configurations of polymer stereoisomerism?