Atomic structure of Metals: Crystal structure, crystal lattice of (i) Body centred cubic (ii) Face centred cubic
(iii) Closed packed hexagonal, crystallographic Notation of atomic planes and Directions (Miller Indices),
polymorphism and allotropy, Crystal imperfection.
Units: II
Theories of plastic deformation. Phenomenon of slip, twinning and dislocation. Identification of
crystallographic possible slip planes and direction in FCC, BCC, HCP. Recovery and recrystallization,
preferred orientation causes and effects on the property of metals.
Units: III
Classification of engineering materials. Solidification of metals and of some typical alloys: Mechanism of
crystallisation (I) nuclear formation (ii) crystal growth. General principles of phase transformation in alloys,
phase rule and equilibrium diagrams, Equilibrium diagram of binary system having complete mutual
solubility in liquid state and limited solubility in solid state, Binary isomorphous alloy system, Hume-Rothery
rule, Binary system with limited solid solubility of terminal phase and in which solubility decreases with
temperature and also alloy with a peritectic transformation. Equilibrium diagram of a system whose
components are subject to allotropic change. Iron carbon Equilibrium diagram, phase transformation in the
iron carbon diagram (I) Formation of Austenite (ii) Transformation of Austenite into pearlite (iii) Martensite
transformation in steel, TTT curves.
Units: IV
Engineering properties and their measurements. Principles and applications of annealing, normalising,
hardening, tempering. Recovery and recrystallization. Hardenability -its measures, variables, effecting
Hardenability, methods, for determination of Hardenability. Over-heated and Burnt steel, its causes and
remedies. Temper brittleness -its causes and remedies. Basic principles involved in heat treatment of plain
carbon steel, alloy steels, cast iron and Non-ferrous metals and their alloys. Chemical Heat treatment of
steels: Physical principles involved in chemical heat treatment procedure for carburizing, Nitriding, Cyaniding,
carbo-nitriding of steel.
Units: V
Effects produced by Alloying element on the structures and properties of steel Distribution of alloying
elements (Si, Mn, Ni, Cr, Mo, Co, W, Ti, Al) in steel, structural classes of steel. Classification of steels, BIS
Standards. Fibre reinforced plastic composites: Various fibres and matrix materials, basic composite
manufacturing methods, applications of composite materials.