Introduction to Dislocations

Defects in Crystals; Crystalline materials; Simple crystal structures; Observation of Dislocations: Surface methods; Decoration methods; Electron microscopy; Movemnet of Dislocations: Concept of slip; Dislocations and slip; The slip plane; Cross slip; Elastic dislocation; Dislocations in Face-Centred Cubic Metals: Perfect dislocations; Paartial dislocations - the Shockley partial; Dislocations in Other Crystal Structures: Dislocations in hexagonal close-packed metals; Dislocations in body-centred cubic metals; Jogs and the Intersection of Dislocations: Intersection of dislocations; Movement of dislocations containing elementary jogs; Origin and Multiplication of Dislocations: Dislocations in freshly grown crystals; Homogeneous nucleation of dislocations; Dislocation Arrays and Crystal Boundaries: Plastic deformation, recovery and recrystallisation; Simple dislocation boundaries; Strength of Crystalline Solids: Temperature-and strain-rate-dependence of the flow stress; The Peierls stress and lattice resistance