Unit I
Crystallography: Review of crystal structure, space lattice, crystal planes and crystal directions, coordination
number, number of atoms per unit cell, atomic packing factor, Numericals related to
crystallography.
Unit II
Imperfection in metal crystals: Crystal imperfections and their classifications, point defects, line defects,
edge & screw dislocations, surface defects, volume defects & effects of imperfections on metal
properties.
Unit III
Solid solutions and phase diagram: Introduction to single and multiphase solid solutions and types of
solid solutions, importance and objectives of phase diagram, systems, phase and structural constituents,
cooling curves, unary & binary phase diagrams, Gibbs’s phase rule, Lever rule, eutectic and eutectoid
systems, peritectic and peritectoid systems, iron carbon equilibrium diagram and TTT diagram.
Unit IV
Heat Treatment: Principles, purpose, classification of heat treatment processes, annealing, normalizing,
stress relieving, hardening, tempering, carburizing, nitriding, cyaniding, flame and induction hardening.
Allotropic transformation of iron and steel, Properties of austenite, ferrite, pearlite, martensite.
Unit V
Deformation of Metal: Elastic and plastic deformation, mechanism of plastic deformation, twinning,
conventional and true stress strain curves for polycrystalline materials, yield point phenomena, strain
ageing, work hardening, Bauschinger effect, season cracking. Recovery, re-crystallization and grain
growth.
Unit VI
Failures of metals: Failure analysis, fracture, process of fracture, types of fracture, fatigue, characteristics
of fatigue, fatigue limit, mechanism of fatigue, factors affecting fatigue.
Unit VII
Creep & Corrosion: Definition and concept, creep curve, mechanism of creep, impact of time and
temperature on creep, creep fracture, creep testing and prevention against creep. Corrosion: Mechanism
and effect of corrosion, prevention of corrosion.
Unit VIII
Plastic, Composite and Ceramics: Polymers, formation of polymers, polymer structure and crystallinity,
polymers to plastics types, reinforced particles-strengthened and dispersion strengthened composites.
Ceramic materials: Types of ceramics, properties of ceramic, ceramic forming techniques, mechanical
behavior of ceramic.