ME 1305: METALLURGY AND MATERIAL SCIENCE

Syllabus

Module I

Crystallography : crystal structure, space lattice, crystal systems, miller indices of crystal planes and directions, atomic density of crystallographic planes and lines, atomic packing factor, coordination number, inter planar spacing. Solidification of metals : homogenous and heterogeneous nucleation, crystal growth, grains and grain boundaries, equi-axed and columnar grains, dendritic pattern, polymorphism. Crystal imperfections : point defect, line defect, edge dislocation, screw dislocation, interaction between dislocation, planar defects, stacking faults, grain boundary, twist and twin boundaries, volume defects. Diffusion : mechanism of diffusion in crystals, types of diffusion, factors affecting diffusion, Fick’s law of diffusion, metallurgical application of diffusion.

Module II

Phase: Equilibrium between phases, Gibb’s phase rule, solid solution, interstitial, substitutional, ordered and disordered types, Hume – Rothery rules, equilibrium phase diagrams of binary alloys complete solid solubility, partial solid solubility, no solid solubility,: eutectic, peritectic and eutectoid reactions, Cu- Ni, Cd-Bi, Pb-Sn, Ag-Pt, and Fe-C systems as examples. Heat treatment of steel: Definition and aims of heat treatment, T T T diagram, isothermal and continuous cooling, annealing, normalizing, hardening, tempering, austempering, martempering, hardenability of steels, jomini test,
surface treatments –case hardening, carburising, cyaniding, nitriding, flame hardening, induction hardening, metal coating- hot dipping, electro plating, metal cladding, impregnation, metal spraying.

Module III
Deformation of metals : Elastic, anelastic and visco elastic behaviour, plastic deformation, mechanism of slip, slip planes and slip directions, mechanism of twinning, strengthening mechanisms, work hardening, grain boundary hardening, precipitation hardening, cold working, hot working, recovery, recrystalisation and grain growth. Failure of metals : creep, mechanism of creep, creep curves, creep resistant materials, fracture, brittle fracture, Griffith’s theory, ductile fracture, ductile-brittle transition, protection against fracture, fatigue.

Module IV
Applications of ferrous and non ferrous alloys-steel- low, medium, high carbon steels-Stainless steels ferritic, austenitic, martensitic, duplex steels-tool steels cast iron- gray, white, ductile cast irons- copper and its alloysaluminium and its alloys-magnesium and alloys- titanium and its alloys-refractories- super alloys-ceramics-- composite and glasses-shape memory alloys- Nano materials, bio materials-Optical fibers.

References:

1) L.W. Van Vlack : Elements of material science – Addison – Wesley.
2) Reed Hill : Physical metallurgy principles – Affiliated east-west press New Delhi
3) Clark & Varney : Physical metallurgy for engineers – Van Nostrand
4) V. Raghavan : Material science and engineering, Prentice Hall of India
5) Avner: Mechanical metallurgy, McGraw Hill
6) Narula : Material Science, Tata McGraw Hill
7) B.K.Agarwal : Introduction to engineering materials, Tata McGraw Hill
8) Manas Chanda : Science to Engg. Materials Vol I, II and III, Macmillan Co. of India.
9) T.V Ravi,C.P Sharma, Heat Treatment Principles & Techniques, PHI
10) Fischer, Materials Science for Engineering Students –Elsevier

Type of Questions for University Exam.

Q 1.Eight short answer questions of 5 marks with two questions from each of the four modules. (8x5 = 40 marks)
Q 2. to Q.5 : Two questions A & B of 15 marks from each modules with option to answer either A or B. (4x15 = 60 marks)