Previous year question paper for MS (B-TECH Mechanical Engineering 3rd)

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.