Mar 27, 2023
ES 181 - Engineering Materials
Credit Hours: 3
The investigation of materials commonly used in engineering applications. Topics include atomic structure and bonding, strengthening mechanisms such as strain hardening, age hardening and phase transformation, phase diagram interpretation and use, processing such as cold and hot working and solidification.
At the conclusion of this course, the student should be able to:
- apply the concepts related to atomic structures;
- understand atomic binding, binding energy and inter-atomic spacing;
- use the concept of unit cells to determine lattice parameters of crystal structures;
- determine and draw points, direction and planes in a unit cell;
- understand interstitial sites, crystal structures of ionic materials and covalent structures;
- understand diffraction technique for crystal structure analysis; and
- understand point defects, dislocations and its influence on material properties.
- apply the concepts related to atom and ion movements in materials;
- understand atomic diffusion, activation energy, rate of diffusion (Fick’s First Law), and factors affecting diffusion.
- apply the basics of the various materials testing methods and mechanical properties;
- know the principle of tensile testing, bend test, fatigue testing, creep testing, hardness testing;
- understand the basic concept of fracture mechanics; and
- compute engineering and true stress and strain.
- apply the concepts of strain hardening and annealing;
- understand strain hardening mechanisms, cold working;
- understand the stages of annealing, and control of annealing; and
- understand hot working.
- apply the Principles of Solidification; and
- understand nucleation, growth mechanisms, solidification time and dendrite formations; and
- understand cooling curves, solidification defects, directional solidification and casting.
- apply the concepts of Solid Solutions and Phase Equilibrium.
- interpret phase diagrams; and
- understand solubility and solid solutions, Solid-solution strengthening, dispersion strengthening.
Prerequisites: CH 180, MT181