MODULE 1:
Earlier and present development of atomic structure – Primary bonds: – characteristics of covalent, ionic and metallic bond – properties based on atomic bonding: – Secondary bonds: – classification, application. (Brief review only).
Crystallography: – SC, BCC, FCC, HCP structures, APF – theoretical density simple problems – Miller Indices: – crystal plane and direction – Modes of plastic deformation: – Slip and twinning -Schmid’s law – Crystallization: Effects of grain size, Hall – Petch theory, simple problems.
MODULE 2:
Classification of crystal imperfections – forest of dislocation, role of surface defects on crack initiation- Burgers vector –Frank Read source – Correlation of dislocation density with strength and nano concept – high and low angle grain boundaries– driving force for grain growth and applications – Polishing and etching – X – ray diffraction, simple problems –SEM and TEM – Diffusion in solids, fick’s laws, mechanisms, applications of diffusion in mechanical engineering, simple problems.
MODULE 3:
Phase diagrams: – need of alloying – classification of alloys – Hume Rothery`s rule – equilibrium diagram of common types of binary systems: five types – Coring – lever rule and Gibb`s phase rule – Reactions- Detailed discussion on Iron-Carbon equilibrium diagram with microstructure and properties -Heat treatment: – TTT, CCT diagram, applications – Tempering- Hardenability, Jominy end quench test, applications- Surface hardening methods.
MODULE 4:
Strengthening mechanisms – cold and hot working – alloy steels: how alloying elements affecting
properties of steel – nickel steels – chromium steels – high speed steels -cast irons – principal non ferrous alloys.
MODULE 5:
Fatigue: – creep -DBTT – super plasticity – need, properties and applications of composites, super alloy, intermetallics, maraging steel, Titanium – Ceramics:- structures, applications.