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2023　Recovery, Recrystallization and Texture of Metals

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Academic unit or major
Graduate major in Materials Science and Engineering
Instructor(s)
Tahara Masaki  Inamura Tomonari 
Class Format
Lecture    (Face-to-face)
Media-enhanced courses
Day/Period(Room No.)
Mon1-2(J2-303(J234))  
Group
-
Course number
MAT.M425
Credits
1
Academic year
2023
Offered quarter
3Q
Syllabus updated
2023/3/20
Lecture notes updated
-
Language used
English
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Course description and aims

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.

Student learning outcomes

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

Keywords

recovery, recrystallization, texture, grain growth, thermomechanical treatment,

Competencies that will be developed

✔ Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills

Class flow

Towards the end of class, students are given exercise problems related to what is taught on tha day to solve

Course schedule/Required learning

  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

Out-of-Class Study Time (Preparation and Review)

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.

Textbook(s)

Recrystallization and related annealing phenomena, F. J. Humphreys and M. Hatherly, Elsevier

Reference books, course materials, etc.

Course materials are provided during class

Assessment criteria and methods

Report (70%) and exercise problem (30%)

Related courses

  • MAT.M303 ： Lattice Defects and Dislocation

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Basic knowledge of dislocation is necessary

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