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Course113102080146 lectures

Introduction to materials science and engineering

Prof. Rajesh Prasad · IIT Delhi

Start with lecture 1 At NPTEL

Lectures

week-01

  1. 1.1 Introduction Video
  2. 1.2 Crystal geometry Video
  3. 1.3 Unit cell Video
  4. 1.4 Classification of latices Video
  5. 1.5 Gaps in Bravais lattices Video
  6. Symmetry I Video
  7. Symmetry II Video
  8. Classification of lattices on the basis of symmetry Video
  9. A symmetry based approach to Bravais lattices Video

week-02

  1. Miller Indices of Directions Video
  2. Miller Indices for Planes Video
  3. Miller Indices for a plane and its normal in Cubic Crystal Video
  4. Weiss Zone law and its applications Video
  5. Inter-planar spacing Video
  6. Bragg’s Law Video
  7. 16: Close-packing of Hard Spheres Video
  8. 17 ABAB stacking: Hexagonal Close-Packed (HCP) structure Video
  9. Lattice and motif of HCP crystals Video
  10. c/a ratio of an ideal HCP crystal Video
  11. ABCABC stacking: Cubic Close-packing (CCP) Video

week-03

  1. Voids in close-packed structures Video
  2. Solid solutions I Video
  3. Solid solutions II Video
  4. Hume-Rothery rules Video
  5. Ordered and Disordered Solid Solutions Video
  6. Graphene Video
  7. Structure of graphite Video
  8. Structure of diamond Video

week-04

  1. Carbon Nanotubes (CNT) Video
  2. Buckminsterfullerene (C60) Video
  3. Ionic solids Video
  4. NaCl Video
  5. CsCl Video
  6. ZnS Video
  7. BCC vs CsCl Video
  8. Amorphous Solids Video
  9. Polymers Video
  10. Vinyl Polymers Video
  11. Thermoplasts and Thermosets Video
  12. Tacticity Video
  13. Copolymers Video
  14. Crystallinity in Polymers Video

week-05

  1. Defects in Crystals Video
  2. Vacancies Video
  3. Edge dislocation: Half plane Video
  4. Edge dislocation: Slip Video
  5. Characteristic vectors of a dislocation Video
  6. Edge, screw and mixed dislocations Video
  7. Screw dislocations Video
  8. Burgers circuit Video
  9. Elastic energy of a dislocation line Video
  10. Burgers vector: Shortest lattice translation Video
  11. Burgers vector of a dislocation is constant along the line Video

week-06

  1. Dislocation cannot end abruptly in a crystal: Free surface Video
  2. Dislocation cannot end abruptly in a crystal: Grain boundaries Video
  3. Dislocation cannot end abruptly in a crystal: Dislocation nodes Video
  4. MSE 57: Dislocation cannot end abruptly in a crystal: Dislocation loop Video
  5. Dislocation motion Video
  6. MSE Video 59: 2D Defects: Surfaces or Interfaces Video
  7. Free surface or external surface of a crystal Video
  8. Stacking Faults Video
  9. Twin boundary Video
  10. Grain Boundary Video
  11. Small Angle Symmetric Tilt Boundary Video
  12. Ball bearing model to demonstrate defects in crystals Video

week-07

  1. Phase diagrams: Introduction Video
  2. Phases and components Video
  3. Uses of phase diagrams Video
  4. Phases present in the system Video
  5. Composition of phases present in the system Video
  6. Proportion of phases present in the system Video
  7. Microstructure evolution during solidification in isomorphous systems Video
  8. Eutectic system Video
  9. Eutectic reaction Video
  10. Eutectic, hypoeutectic and hypereutectic alloys Video
  11. Gibbs’ phase rule Video
  12. Fe-C phase diagram Video

week-08

  1. Eutectoid, Hypoeutectoid and Hypereutectoid steels Video
  2. Microstructure of a Hypoeutectoid Steel Video
  3. Microstructure of a Hypereutectoid Steel (Contd) Video
  4. Diffusion: Introduction Video
  5. Fick's First Law Video
  6. Fick's Second Law Video
  7. Error function solution of Fick's second law Video
  8. Atomic Mechanisms of Diffusion Video
  9. Substitutional Diffusion Revisited Video
  10. Diffusion Paths Video
  11. Steady and Unsteady State Diffusion Video

week-09

  1. Phase transformations Video
  2. Nucleation Video
  3. Nucleation and capillary rise Video
  4. Nucleation, growth and overall transformation Video
  5. Time-temperature-transformation (TTT) diagram Video
  6. Homogeneous and heterogeneous nucleation Video
  7. Heat Treatment of plain carbon steels Video
  8. TTT diagram of Eutectoid Steels Video

week-10

  1. Quenching and Martensite Video
  2. Austempering and Bainite Video
  3. Tempering Video
  4. Residual Stresses and Quench Cracks Video
  5. Marquenching or Martempering Video
  6. TTT diagram of Hypoeutectoid and Hypereutectoid steels Video
  7. TTT Diagram of Alloy Steel Video
  8. Hardenability of steels Video
  9. Glass Ceramics Video
  10. Tensile Test Video
  11. Plastic Deformation and Crystal Structure Video
  12. Shape Change Without Change in Crystal Structure Video
  13. Slip Video
  14. Resolved Shear Stress Video
  15. CRSS Video
  16. Schmid’s law Video

week-11

  1. CRSS: Theory vs experiment Video
  2. Why is experimental CRSS less than theoretical CRSS? Video
  3. Strengthening mechanisms Video
  4. Dislocation density Video
  5. Frank-Read source Video
  6. Strain hardening Video
  7. Dislocation interaction leading to strain hardening I Video
  8. Dislocation interaction leading to strain hardening II Video
  9. Solid solution hardening Video
  10. Grain size hardening Video
  11. Age hardening I: Introduction Video
  12. Age hardening II: Microstructure and mechanisms Video
  13. Metastable precipitates Video
  14. Annealing of cold-worked metals Video
  15. Recovery Video
  16. Recrystallisation Video
  17. Grain growth Video

week-12

  1. True stress and True Strain Video
  2. Creep: Introduction Video
  3. Effect of Stress and Temperature on Creep Video
  4. Creep Mechanisms Video
  5. Composites Video
  6. Isostrain Modulus Video
  7. Isostress Modulus Video
  8. Fracture Video
  9. Ductile and Brittle Fracture Video
  10. Role of Crack Size Video
  11. Griffith's Criterion Video
  12. Stress Concentration Video
  13. Ductile to Brittle Transition Video
  14. Enhancing Fracture Resistance Video
  15. Toughening of Glass: Tempering Video
  16. Toughening of Glass: Ion-Exchange Video
  17. Fatigue Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Delhi
Department
Metallurgy and Material Science
Teacher
Prof. Rajesh Prasad
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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