Materials Engineering
Definition: Materials Engineering studies the structure, properties, processing, and performance of engineering materials, including metals, ceramics, and composites.
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Detailed Syllabus
Unit 1: Crystallography and Associated Defects
- Introduction to Materials Science and Engineering.
- Basic concepts of Crystals, Unit Cells, Crystal Systems, Point Coordinates, Crystallographic Directions, Crystallographic Planes.
- Density Computations, Linear and Planar Densities.
- Single Crystals and Polycrystalline Materials, Polymorphism and Allotropy, Anisotropy, Non-crystalline solids.
- Imperfections in Solids, Point Defects, Dislocations, Interfacial Defects, Bulk or Volume Defects.
- Basic Concepts, Characteristics of Dislocations.
- Slip Systems, Slip in Single Crystals and CRSS.
- Plastic Deformation of Polycrystalline Materials, Deformation by Twinning.
- Strengthening of alloys by grain size reduction, solid solution strengthening and strain hardening.
Unit 3: Fracture in Alloys
- Fundamentals of Fracture, Failure vs. Fracture.
- Ductile Fracture, Brittle Fracture.
- Principles of Fracture Mechanics, Stress concentration, Fracture toughness.
- Fatigue, Cyclic Stresses, The S–N Curve, Crack Initiation and Propagation.
- Factors that affect Fatigue Life, Environmental Effects.
- Creep in alloys, Generalized Creep Behaviour, Stress and Temperature Effects on creep.
Unit 4: Phase Diagrams
- Introduction, Solubility Limit, Solid Solutions, Phases, Microstructure.
- Phase Equilibria, One-Component (or Unary) Phase Diagrams.
- Binary Isomorphous Systems, Interpretation of Phase Diagrams.
- The Gibbs Phase Rule, Tie Line Rule and Lever Rule.
- Development of Microstructure in Isomorphous and Binary Eutectic Alloys.
- Invariant Reactions.
- The Iron–Iron Carbide (Fe–Fe3C) Phase Diagram.
- Development of Microstructure in Iron–Carbon Alloys.
- Introduction, Isothermal Transformation Diagrams.
- Continuous Cooling Transformation Diagrams.
- Mechanical behaviour of Iron-carbon alloys during phase transformation.
- Introduction to Heat treatment of Metals.
- Methods of Annealing, Hardening and Tempering of Steels.
Unit 6: Advanced Engineering Materials
- Types and applications of Ceramics.
- Particle Reinforced Composites, Fiber-Reinforced Composites.
- Introduction to Nano-materials, Shape-Memory Alloys.
- Bio-materials, Recyclable polymers and Biodegradable Polymers.
- Economic, Environmental, and Societal Issues in Materials Engineering.
- Introduction to RoHS directives.