This course explores the basic concept of thermomechanical processing of steel whereby the granular structure of steel is changed to meet desired properties.
Nucleation and Growth
Full Code
MET0105205
Module Type
E-learning
Description
Recrystallisation is a process accomplished by heating whereby deformed grains are replaced by a new set of grains that nucleate and grow until the original grains have been entirely consumed.
This process is usually accompanied by a reduction in the strength and hardness of a material and a simultaneous increase in the ductility. In this module we will explore the collective phenomena of recrystallisation and grain growth that cause work-hardened metals to soften during annealing and other high temperatures treatments. An explanation of heterogeneous and homogenous nucleation that cause different solidification of steel will be also introduced. Finally, the kinetics of solid state reactions will be explained.
What you will learn
- Explain the definition and characteristics of recrystallisation;
- Describe the homogeneous and heterogeneous nucleation;
- Define the kinetics of solid state reactions.
Module content
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