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2016　Crystal Growth and Structure Formation

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Academic unit or major
Undergraduate major in Materials Science and Engineering
Instructor(s)
Kumai Shinji  Kobayashi Equo 
Class Format
Lecture     
Media-enhanced courses
Day/Period(Room No.)
Tue5-6(S8-101)  Fri5-6(S8-101)  
Group
-
Course number
MAT.M304
Credits
2
Academic year
2016
Offered quarter
1Q
Syllabus updated
2016/4/27
Lecture notes updated
-
Language used
Japanese
Access Index

Course description and aims

This course focusses on solidification or crystal growth from molten metals and alloys, and covers the important fundamentals of designing and minifacturing of metallic products. Great change in physical, chemical and mechnical properties caused by liquid/solid transformation is reviewed from the wide standpoint from nanoscopic-scale to macroscopic-scale. Students learn nucleation and growth of solids and microstructure formation, and understand the formationn mechanism of solidification structure and its controlling methods. Introduction of other crystal growth structure formation processes, such as powder metallurgy, mechanical alloying, vapor deposition etc. are also included.

Student learning outcomes

Physical, chemical and mechanical properties of metallic materilas are strongly related to their microstructure. The microstructure of metallic materials is different depending on their fabrication processes. At the end of this course, students will be able to understand the relationship between the crystal growth manner and the resultant microstructure, and how it affects the properties of metallic materials.

Keywords

solidification, dendrite growth, solute segregation,structure control, shape casting, continuous casting, powder metallurgy, mechanical alloying

Competencies that will be developed

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

Class flow

Attendance is taken in every class.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Difference between solids and liquids (Structure and properties) Due date of a report will be announced by instructor, if necessary
Class 2 Crystal growth from molten pure metals / Homogeneous nucleation of solids
Class 3 Heterogeneous nucleation of solids
Class 4 Crystal growth (From the viewpont of atomic movement)
Class 5 Crystal growth (From the viewpoint of heat flow)
Class 6 Crystal growth from molten alloys / Solute distribution and segregation (Equilibrium solodification and non-equilibrium solidification)
Class 7 Solute distribution and segregation (Non-equilibrium solidification and constitutional supercooling)
Class 8 Crystal growth and microstructure formation of single-phase alloys
Class 9 Crystal growth and microstructure formation of dual-phase alloys
Class 10 Achievement evaluation and general practice (1) Solidification and crystal growth
Class 11 Sintering and Powder metallurgy I (Sintering of metals)
Class 12 Sintering and powder metallurgy II (Sintering of other materials)
Class 13 Mechanical alloying
Class 14 Vapor deposition process and microstructure
Class 15 Achievement evaluation and general practice (2) Powder metallurgy and vapor deposition

Textbook(s)

None required.

Reference books, course materials, etc.

KINZOKU NO GYOUKO WO SHIRU (in Japanese): Eisuke Niiyama (Maruzen)
Phase Transformation in Metals and Alloys: D.A.Porter and K.E. Easterling (Taylor & Francis)、Welding Metallurgy: Shindo Kou (Wiley-Interscience)

Assessment criteria and methods

Students will be assessed and scored based on Final exam (80%) and General exercize problems (20%).

Related courses

  • MAT.M207 ： Phase Diagram and Stability in Metals

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

Enrollment in related courses is desirable

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