1. Physical Metallurgy Recap Lecture #4 John Hanson 9/20/12

2. 3D to 2D Projections 100 Stereographic Projection (Cubic Crystal)

3. 3D to 2D Projections 100 Stereographic Projection (Cubic Crystal)

4. 3D to 2D Projections 100 Stereographic Projection (Cubic Crystal)

5. 3D to 2D Projections 48 symmetric triangles Studying anisotropies requires measuring over 4π/48 rather than the entire sphere

6. Anisotropy and Material Properties Properties

7. Anisotropy and Material Properties PropertiesSingle vs. Poly Crystals

8. Anisotropy and Material Properties PropertiesSingle vs. Poly Crystals Processing Random

9. Anisotropy and Material Properties PropertiesSingle vs. Poly Crystals Processing Random Rolling Drawing

10. Anisotropy and Material Properties PropertiesSingle vs. Poly Crystals Processing RandomPreferred Rolling Drawing

11. Euler Angles Source: Euler Angles - Wikipedia

12. Euler Angles Source: Euler Angles - Wikipedia

13. 13 My Work: Hydrogen Embrittlement In situ TEM straining is employed to further study “strongest links”

14. 14 In situ TEM straining is employed to further study “strongest links” Prior to straining, EBSD is used to map grain structure of sample 100 μm SEM image My Work: Hydrogen Embrittlement

15. 15 SEM image overlaid with EBSD data My Work: Hydrogen Embrittlement Inconel 725

16. Pure Nickel SEM image overlaid with EBSD data My Work: Hydrogen Embrittlement

17. Pure Nickel SEM image overlaid with EBSD data My Work: Hydrogen Embrittlement

18. Questions/comments?