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Part IB Materials Science and Metallurgy Course A: Metals & Alloys

This lecture discusses the energy per unit length of dislocations and the energy per unit area of boundaries in single crystal and bicrystal structures. It also covers coincidence site lattice before and after deformation, polygonisation, recrystallisation, grain growth, and the influence of cold work on grain size, tilt boundaries, and dislocation interactions.

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Part IB Materials Science and Metallurgy Course A: Metals & Alloys

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  1. Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture 6: The Solid-State

  2. Single crystal bicrystal

  3. Dislocation has an energy per unit length Boundary has an energy per unit area

  4. Coincidence site lattice

  5. after deformation before deformation Deards, 1992

  6. polygonisation

  7. Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture 7: Recrystallisation, grain growth

  8. Ian Brough & John Humphreys Al-0.1Mg wt% cold-rolled 50%

  9. John Humphreys Al-0.8Si wt% cold-rolled 60% Acta Met. 25, 1323-1344. 1977

  10. Terashima & Bhadeshia, 2006

  11. Grain size • Tilt boundary • Cold work • Dislocation interactions • Recovery

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