Unit 1
Structure of Crystalline Solids – Interatomic Bonding – Crystal Systems – UNIT cells – Metallic Crystal Structures – Miller indices – Crystallographic planes and directions – Linear and Planar Atomic Densities – Imperfections in Solids: Point – Linear – Interfacial defects.
Elastic, Anelastic and Plastic behaviour. Mechanical properties – stress-strain curves for ductile and brittle alloys. Ductility – Resilience -toughness. Hardness testing. Dislocations and plastic deformation. Slip phenomenon. Slip in single crystals.