Checklist for exam 1 (2005)

Know what these are:

1. steel

2. yield strength, tensile strength, elongation

3. quench

4. heat treatment

5. solution treat

6. ageing

7. phase diagram

8, phase

9. solid solution

10. substitutional atom

11. brass

12. close packing

13. tensile test

14. hardness

15. hardness tests, Rockwell, Brinell, diamond pyramid, Mohs

16. plastic deformation

17. plain carbon steel vs. alloy steel

18. toughness

19. impact test

20. Charpy bar

21. brittle-to-ductile transition temperature

22. fracture toughness

23. creep

24. ductile

25. transgranular

26. intergranular

27. chevron marks

28. S-N curves

29. endurance limit

30. beachmarks

31. dislocation

32. slip plane

33. hcp, ccp, "bcc"

34. densely packed planes

35. dislocation generator

36. work or strain hardening

37. dislocation entanglement

38. cold working

39. slip system

40. critical resolved shear stress

Know the basics of how to run these tests:

1. tensile

2. hardness

3. impact

4. fracture toughness

5. fatigue

6. creep

Alloy designation schemes:

1. steels

2. Al alloys

Concepts:

Changing structure changes properties

Common ways to change structure in steels:

1. strain hardening
2. change carbon content
3. heat treatments
4. add alloy elements

Solid solutions

Phase

Phase diagrams

Toughness, hardness, tensile properties

Nature of fracture surfaces

Dislocations & plastic deformation

Strengthening techniques - why do they work?

1. work hardening
2. precipitation hardening
3. grain size reduction
4. solution hardening

Metal crystal structures and slip systems

Critical resolved shear stress