MATERIALS ENGINEERING II

MATERIALS ENGINEERING

(INGE 4001)

OUTCOMES

After the completion of the course the students should be able to:

	• characterize structure-property-performance relationship
	• distinguish the structure of different types of materials
	• specify the microstructure of an alloy from phase diagrams
	• analyze the mechanical and the electrical properties of materials
	• select materials for various engineering applications
	• establish how failures occur in materials and how to prevent them.
	• describe corrosion of materials and how to prevent them.

Chapter 1: Introduction
Chapter 2: Crystal Structures
Chapter 3: Solidification - Diffusion
Chapter 4: Phase Diagrams
Chapter 5: Strengthening Mechanisms
Chapter 6: Heat Treatment, Mechanical Properties
Chapter 7: Ferrous and Non-Ferrous Alloys
Chapter 8: Polymer, Ceramics and Composites
Chapter 9: Corrosion & Electrical Properties of Materials

Chapter 1 (EM1-1, EM1-2, EM1-3)

Metals - Definition, history and examples. Ceramics- Definition, history and examples. Plastics - Definition, history and examples. Electronic Materials - Definition, history and examples. Composites - Definition, history and examples. Concrete.

Atomic Structure. Electronic Structure. Electronegativity. Periodic Table. Atomic size. Ionic Size. Ionic Bond - Properties. Covalent Bond - Properties. Polar Covalent. Carbon Hybridization. Metallic Bond - Properties. Secondary Bonding. Mixed Bonds.

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Chapter 2 (EM2-1, EM2-2, EM2-3)

Crystal Structure. Lattice. Unit Cell. Crystal Systems. Bravais Lattices. Cubic Cells. Coordination Number. Atomic Packing Factor. Hexagonal Close Packed Cells. Atomic Position in Cubic Cells. Directions. Miller Indices. Planes. Packing of Atoms. Density. Polymorphism - Allotropy. X-Ray Diffraction.

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Chapter 3 (EM3-1, EM3-2, EM3-3)

Solidification. Driving Force. Nucleation - Homogeneous - Heterogeneous. Inoculation. Casting - Columnar Zone. Defects in Solids. Vacancies. Solid Solution - Substitutional - Interstitial. Interstitial Sites. Dislocations. Interfacial Defects. Grain size. Diffusion. Steady State Diffusion. Diffusivity. Non-Steady State Diffusion - Carburization.

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Chapter 4 (EM4-1, EM4-2, EM4-3)

Phase Diagrams. Pure substances. Gibbs Phase rule. Solubility limit. Binary isomorphous system. Interpretation of phase diagrams. Equilibrium cooling. Non-equilibrium cooling. Invariant points in binary systems. Eutectic - System and Microstructure. Microconstituents. Intermediate phases. Intermetallic compounds. Iron-Iron Carbide Diagram. Eutectoid steel - Pearlite. Hypo and hyper eutectoid steel.

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Chapter 5 (EM5-1, EM5-2, EM5-3)

Deformation in single crystals. Slip systems. Resolved shear stress. Plastic deformation in polycrystals. Strengthening Mechanisms. Strain hardening. Cold work. Recovery. Recrystallization. Grain growth. Solid solution strengthening. Strengthening by Grain size reduction. Dispersion strengthening. Precipitation hardening.

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Chapter 6 (EM6-1, EM6-2, EM6-3, EM6-4, EM6-5)

Heat Treatment - Basic Concepts. S- Shape Transformation Curve. Isothermal Transformation. TTT Diagrams, Pearlite Formation. Bainite Formation. Martensite Formation. Continuous Cooling Transformation. Common Industrial Heat Treatments. Annealing. Normalizing. Spheroidizing. Quench & Temper. Austempering. Martempering. Hardenability.

Mechanical Properties. Types. Basic Definitions. Tensile Testing. Engineering Stress and Strain. True Stress and Strain. Strain Hardening Parameter. Inestability on Tension. Fracture Behavior - Ductile and Brittle. Stress-Strain Behavior of Ceramics. Torsion Test. Impact Test. Ductile-Brittle Transition Temperature. Hardness. Hardness Types. Correlation between hardness and tensile strength. Fatigue Test. Creep Test.

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Chapter 7 (EM7-1, EM7-2, EM7-3, EM7-4)

Ferrous Alloys. Low Alloy steels. High Alloy Steels. Austenitic Steel. Stainless Steels. Cast Irons - Grey - White - Nodular - Malleable. Non-Ferrous Alloys. Copper and Copper Alloys - Bronzes - Brasses. Copper-Nickel. Aluminum Alloys - Wrought - Cast. Magnesium Alloys. Titanium Alloys. Others.

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Chapter 8 (EM8-1, EM8-2)

Polymers. Basic building blocks. Hydrocarbon molecules. Chemistry and Structure of Polymer Molecules. Common polymers. Isomers. Thermoplastic thermosetting. Polymer crystallinity. Mechanical behavior of polymers. Viscoelasticity. Forming techniques for plastics.

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Chapter 9 (EM9-1, EM9-2, EM9-3, EM9-4, EM9-5)

Corrosion. Mechanism of deterioration. Oxidation. Scale type. Electrochemical corrosion. Electrode Potential. Standard Electromotive Force (EMF) series. Galvanic series. Forms of Corrosion.