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BSc Materials Science and Engineering / Course details
Year of entry: 2023
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Course unit details:
Phase Transformations and Microstructure Control
|Unit level||Level 5|
|Teaching period(s)||Semester 1|
|Offered by||Department of Materials|
|Available as a free choice unit?||No|
This unit provides the foundation in phase transformations required to understand microstructural development in metallic, ceramic, and polymeric systems. This includes providing the background theory and quantitative understanding required predicting phase transformation kinetics.
The unit aims to:
- Provide a fundamental understanding and quantitative description of the important phase transformation mechanisms in metallic, ceramic, and polymeric systems.
- Provide an understanding of the importance of phase transformations in determining microstructure and an ability to classify phase transformations by type.
- Provide a quantitative understanding of diffusion, nucleation, growth, and overall transformation kinetic theory.
- Provide a foundation in solidification theory including quantitative descriptions.
A greater depth of the learning outcomes will be covered in the following sections:
- Knowledge and understanding
- Intellectual skills
- Practical skills
- Transferable skills and personal qualities
Teaching and learning methods
Lectures, laboratories, recommended textbooks, web resources, past exam papers, electronic supporting information (Blackboard), peer-assisted study sessions (PASS).
Knowledge and understanding
a) Understand the important classes of phase transformations in materials (metallic, ceramic, polymeric).
b) Understand the importance of phase transformations and their relation to microstructure.
c) Understand the mechanisms of diffusion in materials.
d) Understand Ficks 1st and 2nd laws of diffusion.
e) Understand nucleation theory, including solid-state nucleation (homogeneous and heterogeneous).
f) Understand the difference between 1st and 2nd order phase transformations and give examples of both.
g) Understand growth mechanisms during phase transformations.
h) Understand and describe non-diffusional phase transformation mechanisms in materials.
i) Understand how solidification occurs in materials, including a quantitative ability to predict conditions for interface instability.
j) Understand overall phase transformation kinetics for diffusional and diffusion-less transformations.
a) Use Fick’s 1st and 2nd laws to solve diffusion problems.
b) Use nucleation theory to predict nucleation rates for phase transformations.
c) Predict the conditions for interface stability during solidification.
d) Create and interpret a time-temperature-transformation (TTT) diagram.
a) Use image analysis to quantify a microstructure.
b) Use the MATLAB computer language to run a simple model and interpret the results.
Transferable skills and personal qualities
a) Familiarization with the MATLAB computer language.
b) Experience and familiarization with image analysis techniques.
|Written assignment (inc essay)||30%|
Written and verbal
- See electronic reading list (BlackBoard, Course Information)
|Scheduled activity hours|
|Independent study hours|
|Joseph Robson||Unit coordinator|