Lecture 4 John Hanson 92012 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 ID: 357656
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Slide1
Physical Metallurgy RecapLecture #4
John Hanson
9/20/12Slide2
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)Slide3
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)Slide4
3D to 2D Projections
100 Stereographic Projection (Cubic Crystal)Slide5
3D to 2D Projections
48 symmetric triangles
Studying
anisotropies
requires measuring over 4π/48 rather than the entire sphereSlide6
Anisotropy and Material Properties
PropertiesSlide7
Anisotropy and Material Properties
Properties
Single vs. Poly CrystalsSlide8
Anisotropy and Material Properties
Properties
Single vs. Poly Crystals
Processing
RandomSlide9
Anisotropy and Material Properties
Properties
Single vs. Poly Crystals
Processing
Random
Rolling
DrawingSlide10
Anisotropy and Material Properties
Properties
Single vs. Poly Crystals
Processing
Random
Preferred
Rolling
DrawingSlide11
Euler Angles
Series of three rotations:
Source: Euler Angles - WikipediaSlide12
Euler Angles
Series of three rotations:
Source: Euler Angles - WikipediaSlide13
13
My Work: Hydrogen
Embrittlement
In situ
TEM straining is employed to
further study “strongest links”Slide14
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
μ
m
SEM image
My Work: Hydrogen
EmbrittlementSlide15
15
SEM image overlaid with EBSD data
My Work: Hydrogen
Embrittlement
Inconel 725Slide16
Pure Nickel
SEM image overlaid with EBSD data
My Work: Hydrogen
EmbrittlementSlide17
Pure Nickel
SEM image overlaid with EBSD data
My Work: Hydrogen
EmbrittlementSlide18
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