Materials Science & Engg. | Department of Mechanical Engineering

Materials Science & Engg.

Chapter-1: Introduction Material science and engineering, Classification of engineering materials, Structureproperty relationship, Bonding forces and energies, Equilibrium and kinetics, Stability and Meta-stability, Basic thermodynamic functions, Entropy, Kinetics of thermally activated processes
Chapter-2: Crystal Geometry and Structure Determination Geometry of crystal, Space lattice, Crystal structure, Crystal directions and planes, Structure determination by X-ray diffraction, atomic structure and chemical bonding Chapter-3: Crystal Imperfections Defects in materials, Point defects, Dislocations, Properties of dislocations, Dislocation theory Surface imperfections
Chapter-4: Phase Diagrams The phase rule, Single-component systems, Binary-phase diagrams, Iron-Carbon Phase diagram, Microstructural changes during cooling, The lever rule.
Chapter-5: Phase Transformations
Time-scale for phase change, Nucleation and grain growth, Nucleation kinetics, Overall transformation kinetics, Applications, Recovery, recrystallization and grain growth, Diffusion
Chapter-6: Plastic Deformation in Crystalline Materials Plastic deformation by slip, Shear strength of perfect and real crystals, Critical resolved shear stress for slip, Stress to move a dislocation, Effect of temperature on dislocation movement, Dislocation multiplication, Work hardening and dynamic recovery
Chapter-7: Strengthening Mechanisms in Materials Introduction, strengthening from grain boundaries, Solid solution strengthening, strengthening by fine particles, Strain hardening, Bauschinger effect
Chapter-8: Material Properties Concept of stress and strain, True stress and strain, Compressive, shear and torsional deformation, Hardness, Ductile and brittle fracture, Cyclic stresses, S-N Curve

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