This course focuses on the recovery, recrystallization and texture in single-phase polycrystalline metallic materials to understand the basic principle to control microstructure. Emphasis is placed on description of grain boundary, migration of grain boundary, deformation microstructure, annihilation and rearrangement of dislocations in recovery, kinetics of recrystallization, texture and its controlling factors.
At the end of this course, students will be able to:
1) Have understanding of basic principles to control microstructure that determine physical properties of metallic materials
2) Have understanding of basics of recovery, recrystallization and texture
3) Have understanding of basic concepts to control properties of various metallic materials by thermomechanical treatment
recovery, recrystallization, texture, grain growth, thermomechanical treatment,
|✔ Specialist skills||Intercultural skills||Communication skills||Critical thinking skills||Practical and/or problem-solving skills|
Towards the end of class, students are given exercise problems related to what is taught on tha day to solve
|Course schedule||Required learning|
|Class 1||Structure and energy of grain boundary||misorientation, grain boundary energy|
|Class 2||Grain boundary migration Mobility of low and high angle grain boundary||Equilibrium condition and pinning force of grain boundary migration, mobility Factors affecting the mobility of low and high angle grain boundary|
|Class 3||Deformed microstructure and stored energy||Energy of grain boundary and dislocations introduced by deformation|
|Class 4||Empirical low and kinetics of recovery and primary recrystallization||Empirical low of recovery and process of recovery as a thermally activated process of dislocation Empirical low and kinetics of recrystallization|
|Class 5||Grain growth, Continuity of reaction||Geometry and theory of grain growth|
|Class 6||Representation and measurement of texture Deformation texture||Pole figures, Euler angles Rotation of single crystal by deformation Taylor model|
|Class 7||Deformation and recrystallization textures||Deformation and recrystallization textures in fcc, bcc and hcp alloys|
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Recrystallization and related annealing phenomena, F. J. Humphreys and M. Hatherly, Elsevier
Course materials are provided during class
Report (70%) and exercise problem (30%)
Basic knowledge of dislocation is necessary