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505111 A: Structural Metallurgy
Marks : 100
Plastic deformation of single crystal: Lattice defects, Slip in perfect lattice, easy
glide, slip by dislocation movement, Critical resolved shear stress for slip, deformation
by twinning, Stacking faults, Strain hardening of single crystal.
Dislocation Theory : Methods of observation of dislocations, Elastic properties of
dislocations, strain energy of dislocations. Forces on and between dislocations,
Dislocations in FCC and other crystal structures. Multiplication of dislocations.
Dislocation pileups, Strengthening of dislocations. Work hardening.
Diffusion in solids : Fick’s laws of diffusion, Solutions of Fick’s law and their
applications to metallurgical problems, Kirkendall effect, Atomic movements in
diffusion.
Strengthening mechanisms : Strengthening by grain boundaries, Yield point
phenomenon, Strain ageing, Solid solution strengthening from fine particles, fiber
strengthening, strengthening due to point defects, Cold Working.
Study of Phase Transformations: Nucleation and growth considerations,
Homogeneous and heterogeneous nucleation. Martensitic transformations, Order-disorder
changes, Precipitation hardening, Solution treatment Aging treatment, Nucleation of
precipitates, Theories of structural changes during ageing, Study of Al-Cu system,
Theories of precipitation hardening.
Fractures: Theoretical strength of materials, Types of fractures, Griffith theory of
brittle fracture, ductile to brittle transition, ductile fracture, Notch effects.
Reference Books.
1. Dieter George E. – Mechanical metallurgy, McGraw Hill.
2. Hayden, Moffat and Wulff – The structure and properties of materials, Vol. III
(Mechanical behaviour) Wiley Eastern Pvt. Ltd. New Delhi.
3. Reed – Hill Robert E. – Physical Metallurgy Principles, Affiliated East-West
Press Pvt. Ltd. New Delhi.
4. Brophy, Rose and Wulff – Thermodynamics of Structure, Vol. II, Wiley Eastern
Pvt. Ltd. New Delhi.
5. Smallman R. E. –Modern Physical Metallurgy, The English Language Book
Society, and London Butterworths.
6. Derek Hull – Introduction to Dislocations, Pergamon Press.
For more details, visit http://www.unipune.ernet.in/stud_info/Syllabi/Syllabus_2008.html
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