Overview

This module continues the teaching from Engineering Materials 1 to further the students understanding of materials science and engineering.

The students will learn about the influence of material’s mechanical and microstructural properties on engineering design choices, a very useful skills required in most materials engineering job. They will be introduced to the fundamentals of materials deformation mechanisms including theories of elasticity, plasticity, and dislocations. They will also learn about various failure mechanisms of metallic materials including fatigue, creep, and corrosion. Finally, they will learn about the basics of various material processing techniques such as forging, forming, casting, machining, and welding.

The learning will be both through theoretical teaching and practical lab works.

1. Discuss different class of materials such as, metals, ceramics, glasses, composites and polymers, and those corresponding mechanical behaviour
2. Understand various mechanical properties of materials including tensile strength, stiffness, Young’s modulus, Shear modulus, Bulk Modulus, Poisson’s ratio
3. Introduction to Hooke’s law, relationship between stress and strain, and continuum plasticity theory
4. Understand and conduct tensile test to obtain mechanical properties of materials.
5. Understand mechanisms of plastic deformation and strengthening of metallic materials in terms of dislocation theories
6. Demonstrate an understanding of fracture toughness and fracture behaviours of materials
7. Understanding the temperature dependence of materials deformation including detailed understanding of creep deformation of metals
8. Detailed understanding of the theory of fatigue failure including terminology, measurement, characteristic curves; Miner's Rule and S-N curves
9. Description of the general advantages and limitations of various materials processing techniques including the economic perspective
10. Description of main applications, equipment, characteristics, and manufacturing defects for metal forging, forming, and casting processes
11. Heat-treatment of metals and those corresponding effects on microstructure and mechanical properties
12. Introduction to joining and machining processes with an outlook to advanced manufacturing and joining processes

Assessment Strategy

The module will be assessed through coursework related to practical lab experiments (40%) and a final exam (60%).

-threshold -Equivalent to 40%.Uses key areas of theory or knowledge to meet the Learning Outcomes of the module. Is able to formulate an appropriate solution to accurately solve tasks and questions. Can identify individual aspects, but lacks an awareness of links between them and the wider contexts. Outputs can be understood, but lack structure and/or coherence.

-good -Equivalent to the range 60%-69%.Is able to analyse a task or problem to decide which aspects of theory and knowledge to apply. Solutions are of a workable quality, demonstrating understanding of underlying principles. Major themes can be linked appropriately but may not be able to extend this to individual aspects. Outputs are readily understood, with an appropriate structure but may lack sophistication.

-excellent -Equivalent to the range 70%+.Assemble critically evaluated, relevant areas of knowledge and theory to constuct professional-level solutions to tasks and questions presented. Is able to cross-link themes and aspects to draw considered conclusions. Presents outputs in a cohesive, accurate, and efficient manner.

Learning Outcomes

• Compare material processing techniques including forging, forming, casting, machining, and welding.

• Identify the deformation mechanisms acting in different types of material.

• Learn the methods to analyse failure mechanisms in engineering materials

• Understand the link between microstructure and materials properties and how this influences engineering design choices.