COURSE OBJECTIVES

The objective of the course is to provide the background necessary to make informed decisions and recommendations concerning the suitability of materials for engineering applications. It explores the way in which materials are used and the way in which production and fabrication routes influence their fitness for purpose.
The first segment of the course considers the principal properties of engineering materials that are of major importance for the practicing mechanical engineer, namely properties such as strength, toughness, stiffness, and dynamic properties. Following are major millstones:

• To help in understanding different types of materials, their structure, chemical make-up and different macroscopic properties and microscopic properties.
• To understand process of extraction, refining and production of different metals, ferrous and non-ferrous alloys.
• The major categories of engineering materials other than metals and alloys such as engineering polymers, engineering ceramics, semiconductors and composites are covered. Introduction to emerging materials such as composites and nanomaterials are included.

The next section covers the common processes available to turn these materials into actual components, and considers the process itself and the influence of the choice of processing route itself on material properties, inherent defects, failure analysis etc.

COURSE LEARNING OUTCOMES (CLO)

CLO-1: Describe structures, properties and applications of metals, ceramics, polymer and composite materials

CLO-2: Understand causes of environmental pollution due to processing of engineering materials and environmental cost of corrosion of materials and propose their control. (C2)

CLO-3: Apply the acquired knowledge to make appropriate materials selection for engineering applications. (C3)

COURSE CONTENTS

  1. Introduction to Engineering Materials – One Lecture                             
  • Importance of materials in everyday life
  • Classification of materials

2. Atomic Structure and Interatomic Bonding – Two Lectures                               

  • Atomic Structure and Types of bonding
  • Atomic bonding and Material properties
  • Polymorphism and Allotropic forms
  • Crystallography basics: points, directions, planes
  • Unit Cell and Crystal System
  • Polymorphism and Allotropic forms
  • Structure Analysis instrumentation

3. Structure of Engineering Materials – Three Lectures                  

  • Structure of Metals
  • Structure of Ceramics
  • Structure of Polymers

4. Imperfections in Materials – Two Lectures         

  • Different types of Defects
  • Slip and slip systems
  • Effects of defects and dislocation on materials properties

5. Diffusion and Thermal Properties of Materials – Two Lectures  

  • Introduction to diffusion
  • Factors effecting diffusion
  • Heat Capacity and Specific heat
  • Thermal Conduction, expansion and stresses

6. Mechanical Properties of Materials – Three Lectures                                         

  • Mechanical Behavior of Metals
  • Mechanical Behavior of Ceramics
  • Mechanical Behavior of Polymers
  • Fracture
  • Fatigue
  • Creep

7. Solidification and Strengthening in Metals – Two Lectures                                 

  • Nucleation and Grain growth
  • Cooling curves
  • Solid Solution and phases
  • Solid Solution Alloys formation

8. Phase Diagram and Phase Transformation – Three Lectures      

  • Basic Concepts
  • Relationship between properties and phase diagram
  • Eutectic System and microstructure formation
  • Eutectoid and reaction
  • Introduction of Iron-carbon System
  • Phase diagram of Ceramics and non-ferrous Alloys

9. Formation and Heat treatment of Steel – Three Lectures            

  • Formation of different Iron-Carbon Alloys
  • Strain Hardening and Annealing
  • Heat treatment of Steels
  • Austempering and Martempering of steel

10. Processing of Ceramics and Polymers – Two Lectures                            

  • Glass Transition phenomena
  • Fabrication and Processing of Ceramics
  • Processing of Polymers

11. Types and Application of Materials – Three Lectures                 

  • Types and application of Metal alloys
  • Types and application of Ceramics
  • Types and application of Polymers

12. Introduction to Composite Materials – Two Lectures                              

  • Particles reinforced Composites
  • Fiber Reinforced Composites
  • Products and Applications of Composite materials

13. Corrosion, Wear and Its Control – Two Lectures

  • Electrochemical Corrosion and Its Types
  • Protection against different Types of corrosion
  • Wear and Erosion

14. Materials Selection and Testing – Two Lectures                                      

  • In-service Analysis and Testing of materials
  • Material Section Procedure
  • Case Studies