physical metallurgy recap lecture #4
DESCRIPTION
Physical Metallurgy Recap Lecture #4. John Hanson 9/20/12. 3D to 2D Projections. 100 Stereographic Projection (Cubic Crystal). 3D to 2D Projections. 100 Stereographic Projection (Cubic Crystal). 3D to 2D Projections. 100 Stereographic Projection (Cubic Crystal). 3D to 2D Projections. - PowerPoint PPT PresentationTRANSCRIPT
Physical Metallurgy RecapLecture #4
John Hanson9/20/12
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)
3D to 2D Projections
48 symmetric triangles
Studying anisotropies requires measuring over 4π/48 rather than the entire sphere
Anisotropy and Material PropertiesProperties
Anisotropy and Material PropertiesProperties Single vs. Poly Crystals
Anisotropy and Material PropertiesProperties Single vs. Poly Crystals
Processing
Random
Anisotropy and Material PropertiesProperties Single vs. Poly Crystals
Processing
Random
RollingDrawing
Anisotropy and Material PropertiesProperties Single vs. Poly Crystals
Processing
Random Preferred
RollingDrawing
Euler Angles• Series of three rotations:
Source: Euler Angles - Wikipedia
Euler Angles• Series of three rotations:
Source: Euler Angles - Wikipedia
13
My Work: Hydrogen Embrittlement• In situ TEM straining is
employed to further study “strongest links”
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
15SEM image overlaid with EBSD data
My Work: Hydrogen Embrittlement• Inconel 725
• Pure Nickel
SEM image overlaid with EBSD data
My Work: Hydrogen Embrittlement
• Pure Nickel
SEM image overlaid with EBSD data
My Work: Hydrogen Embrittlement
Questions/comments?