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Basics of Materials Engineering

NPTEL-NOC IITM via YouTube

Overview

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Explore the fundamental principles of materials engineering through this comprehensive lecture series from IIT Madras that systematically covers material properties, crystal structures, and defects in crystalline materials. Begin with an introduction to the material property landscape and delve deep into crystal structures, including Platonic solids, unit cells, lattices, Bravais lattices, and Miller indices for crystallographic analysis. Master the concepts of close-packed structures, stacking faults, single crystal and polycrystalline materials, and X-ray diffraction techniques for structure determination. Examine various types of crystalline defects including point defects, vacancies, dislocations, slip systems, and strengthening mechanisms, while understanding their effects on material behavior. Study mechanical properties through stress tensor concepts, tension testing for both elastic and plastic deformation, and hardness testing methodologies. Learn static failure theories including distortion energy theory, maximum shear stress theory, and failure mechanisms in brittle materials, along with Coulomb-Mohr criteria and stress concentration effects. Investigate fracture mechanics principles including Griffith's analysis, energy release rates, stress intensity factors, and fracture toughness concepts. Analyze fatigue failure mechanisms through S-N diagrams, high and low cycle fatigue, rotating beam bending tests, fatigue strength correction factors, mean stress effects, multiaxial fatigue, and Paris' law for fatigue crack growth. Understand phase diagrams for binary alloy systems, including eutectic, peritectic, eutectoid, and peritectoid reactions, with special focus on the iron-iron carbide phase diagram. Conclude with kinetics of phase transformations, homogeneous nucleation theory, isothermal transformation diagrams, martensite transformation, CCT diagrams, and heat treatment processes including annealing and normalizing of steels.

Syllabus

#1 Introduction | Basics of Materials Engineering
#2 Material Property Landscape | Basics of Materials Engineering
#3 Crystal Structure | Platonic Solids | Part 1 | Basics of Materials Engineering
#4 Crystal Structure | Unit Cell, Lattice, Crystal | Part 2 | Basics of Materials Engineering
#5 Crystal Structure | Bravais lattice | Part 3 | Symmetry in Crystals
#6 Crystal Structure | Miller Indices for Crystallographic Points & Directions | Part 4
#7 Crystal Structure | Miller Bravais Indices | Linear & Planar Density | Part 5
#8 Crystal Structure | Planar density | Close Packed Structures | Stacking Faults | Part 6
#9 Crystal Structure |Single Crystal & Polycrystalline Materials | Part 7
#10 Crystal Structure | X Ray Diffraction & Determination of Structure | Part 8
#11 Defects in Crystalline Materials | Types of Crystalline Defects | Part 1
#12 Defects in Crystalline Materials | Point Defects | Part 1
#13 Defects in Crystalline Materials | Equilibrium Concentration of Vacancies | Part 1
#14 Defects in Crystalline Materials | Theoretical Shear Strength | Part 1
#15 Defects in Crystalline Materials Effect of Point Defects | Part 2
#16 Defects in Crystalline Materials | Point Defects & Solid Solutions | Part 2
#17 Defects in Crystalline Materials | Part 3 | Basics of Materials Engineering
#18 Defects in Crystalline Materials | Slip Systems | Burger's Vector & Dislocation Motion | Part 4
#19 Defects in Crystalline Materials | Slip in Single Crystals & Resolved Shear Stress | Part 4
#20 Defects in Crystalline Materials | Different Stages of Slip in Single Crystal Materials | Part 5
#21 Defects in Crystalline Materials | Part 5 | Basics of Materials Engineering
#22 Defects in Crystalline Materials | Twinning, Interfacial Defects & Volume Defects | Part 6
#23 Defects in Crystalline Materials | Strengthening Mechanisms | Part 6
#24 Defects in Crystalline Materials | Part 7 | Basics of Materials Engineering
#25 Mechanical Properties of Materials | Concept of Stress Tensor | Basics of Materials Engineering
#26 Tension Test | Elastic Deformation | Basics of Materials Engineering
#27 Tension Test | Plastic Deformation | Part 1
#28 Tension Test | Plastic Deformation | Part 2
#29 Mechanical Properties | Hardness Test | Basics of Materials Engineering
#30 Static Failure Theories | Introduction, Definition of Failure | Part 1
#31 Static Failure Theories | General form of Failure Theory,Stress Tensor,Principal Stress | Part 2
#32 Static Failure Theories | Distortion Energy Theory | Basics of Materials Engineering | Part 3
#33 Static Failure Theories | Maximum Shear Stress Theory | Basics of Materials Engineering | Part 4
#34 Static Failure Theories | Design Problems | Part 5 | Basics of Materials Engineering
#35 Static Failure Theories | Failure of Brittle Materials | Part 6 |Basics of Materials Engineering
#36 Static Failure Theories | Coulomb Mohr & Modified Coulomb Mohr | Part 7
#37 Static Failure Theories | Notches & Stress Concentration | Part 8
#38 Introduction to Fracture Mechanics, Griffith's Analysis of a Cracked Body
#39 Fracture Mechanics | Energy Release Rate | Basics of Materials Engineering
#40 Fracture Mechanics Crack Resistance, Stress Intensity Factor, Fracture Toughness
#41 Fatigue Failure of Materials | Introduction | Historical Events | S N Diagram
#42 Fatigue Failure of Materials | S N Diagram | Types of Time Varying Loads
#43 Fatigue Failure of Materials | High Cycle Fatigue,Low Cycle Fatigue,Stress Ratio,Amplitude Ratio
#44 Fatigue Failure of Materials | Rotating Beam Bending Test | Estimated S N diagram
#45 Fatigue Failure Theories | Fatigue strength Correction Factors | Basics of Materials Engineering
#46 Problems on Fatigue Failure | S N Diagram | Corrected Endurance Strength | Part 1
#47 Fatigue Failure of Materials | Features of Fatigue Failure | Factor of Safety in Life & Stress
#48 Fatigue Failure of Materials | Effect of Mean Stress | Basics of Materials Engineering
#49 Fatigue Failure of Materials | Multiaxial Fatigue & Variable Amplitude Loading
#50 Fatigue Failure of Materials | Fatigue Stress Concentration Factor
#51 Fatigue Failure of Materials | Fatigue Crack Growth | Paris' law
#52 Problems on Fatigue Failure 2 | Effect of Mean Stress | Fatigue Crack Growth
#53 Problems on Fatigue Failure 3 | Effect of Notch | Multiaxial Loading
#54 Phase Diagrams | Introduction | Basics of Materials Engineering
#55 Phase Diagrams | Language of Phase Diagrams | Types of Binary Phase Alloys
#56 Phase Diagrams | Part 1 | Basics of Materials Engineering
#57 Phase Diagrams | Part 2 | Basics of Materials Engineering
#58 Phase Diagrams | Congruent Melting Alloys | Type II Alloys | Eutectic Reaction
#59 Phase Diagrams | Type III Alloys with Partial Solubility in Solid State
#60 Phase Diagrams | Congruent Melting Alloys | Peritectic Reaction | Monotectic Reaction
#61 Phase Diagrams | Allotropy, Eutectoid & Peritectoid Reactions | Basics of Materials Engineering
#62 Phase Diagrams | Iron Iron Carbide Phase Diagram | Basics of Materials Engineering
#63 Kinetics of Phase Transformations | Homogeneous Nucleation | Basics of Materials Engineering
#64 Kinetics of Phase Transformations | Homogeneous Nucleation | Basics of Materials Engineering
#65 Isothermal Transformation Diagram | Basics of Materials Engineering
#66 Martensite Transformation | C C T Diagram | Basics of Materials Engineering
#67 Heat Treatment of Steels | Annealing & Normalizing | Basics of Materials Engineering

Taught by

NPTEL-NOC IITM

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