Recrystallization Theoretical & Practical Aspects - Materials Science ...

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Intro <strong>Recrystallization</strong> Lab 1 Grain Boundaries LAGB to HAGB Transitions • The Read- Shockley equation describes the energy of low angle boundaries. • An exponential function is useful for describing the sharp transition in mobility from lowto high-angle boundaries Energy, Mobility 1 0.8 0.6 0.4 0.2 c1=c0/15.*(1.-ln(c0/15.)) Energy Mobility c2=1.-0.99*exp(-.5*(c0/15)^9) 0 0 5 10 15 20 25 Angle (°) 28
Intro <strong>Recrystallization</strong> Lab 1 Grain Boundaries Example: tilt boundary = array of parallel edge dislocations b • Low angle boundaries are arrays of parallel edge dislocations if the rotation between the lattices is small and the rotation axis lies in the boundary plane. In this example, the rotation axis between the two crystals is perpendicular to the plane of the picture. 29
Page 1 and 2: Intro Recrystallization Lab 1 Grain
Page 9 and 10: Grain size as a function of prior d
Page 13 and 14: Intro Recrystallization Lab 1 Tempe
Page 27: Intro Recrystallization Lab 1 Grain

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