GAZI UNIVERSITY INFORMATION PACKAGE - 2019 ACADEMIC YEAR

COURSE DESCRIPTION

DIRECTIONAL SOLIDIFICATION/5211337

Course Title:	DIRECTIONAL SOLIDIFICATION
Credits	3	ECTS	7.5
Course Semester	2	Type of The Course	Elective

COURSE INFORMATION

-- (CATALOG CONTENT)

-- (TEXTBOOK)

-- (SUPPLEMENTARY TEXTBOOK)

1. Tüzünalp, K.K., “Alüminyum Alaşımlarının Yönlü Katılaşması ve Süreç Parametrelerinin İrdelenmesi”, Doktora Tezi, Gazi Üniversitesi Fen Bilimleri Enstitüsü, Ankara, 5-90 (2002).
2. Ünalan İ, “Yönlü Katılaştırılmış Alüminyumun Döküm Mikro ve Makro Yapılarının İncelenmesi”, Yüksek Lisans Tezi, Gazi Üniversitesi Fen Bilimleri Enstitüsü, Ankara, (2006).
3. Porter, D.A., Easterling, K.E., “Phase Transformations in Metals and Alloys”, Chapman & Hall, London, (1995).
5. Sreenivas, Rao, K.V., Tejaswini. G.C., Jamuna.K., “Evolution of Columnar-Dendritic Microstructure during Upward Directional Solidification of Eutectic and Off-Eutectic Pb-Sn Alloys”,  Materials Today: Proceedings 4, pp. 11102–11106, (2017).
6. Battaglioli, S., McFadden, S., Robinson, A.J., “Numerical Simulation of Bridgman Solidification of Binary Alloys”, International Journal of Heat and Mass Transfer, 104, pp 199-211, (2017). 
7. McFadden, S., Browne, D.J., Gandin, Ch.A., “A Comparison of Columnar-to-Equiaxed Transition Prediction Methods Using Simulation of the Growing Columnar Front”, Metallurgical and Materials Transactions A, 40A, 662-672, (2009).
8. Gandin, Ch.A., “From Constrained to Unconstrained Growth During Directional Solidification” Acta Materialia,

-- (PREREQUISITES AND CO-REQUISITES)

-- LANGUAGE OF INSTRUCTION

Turkish

-- COURSE OBJECTIVES

-- COURSE LEARNING OUTCOMES

Being able to design directional solidified materials.
Being able to design directional solidified materials.
To be able to conduct an academic research on a selected topic within the course content.

-- MODE OF DELIVERY

The mode of delivery of this course is face to face

--WEEKLY SCHEDULE
1. Week	Introduction to Solidification Theory: Homogeneous nucleation, Gibbs free energy, free energies of volume and surface, nucleation initiation conditions.
2. Week	Directional Solidification in pure metals: Initial conditions of growth, attachment mechanisms at the atomic level in the liquid-solid interface, faceted and non-faceted growth, initial evolution of stable and unstable interfaces and growth at the atomic scale. Interface growth under positive and ne
3. Week	Directional Solidification of Alloys: Constitutional undercooling, growth differences between conventional and directional solidification. Cellular and dendritic solidification and growth directions of dendrites.
4. Week	Directional Solidification of Alloys: Interfacial structures due to temperature gradient and growth rate, redistribution of solute atoms in cellular solidification, morphology and crystallography of dendrites.
5. Week	Directional Solidification of Alloys: Detailed shape analysis of the resulting dendrites and diffusion field at the tip of a growing thermal dendrite.
6. Week	Quality Control of Directional Solidification: Primary dendrite arm spacing and its effect on the growth structures. Secondary and tertiary dendrite arm spacing.
7. Week	Mid-term examination
8. Week	Directionally Solidified Eutectics: Regular and irregular eutectics, diffusion coupled growth, curvature effects at the eutectic interface, eutectic and eutectoid spacing as a function of growth rate, types of eutectic interface instability.
9. Week	Peritectic growth, micro and macro segregation, anisotropy of directionally solidified materials, comparison of microstructure, macrostructure and mechanical properties with conventional castings.
10. Week	Thermal analysis of directional solidification, analysis of the cooling curves and determination of liquid-solid interface velocities. Temperature distributions and thermal maps for analyzing directional solidification.
11. Week	Bridgman method, its solidification conditions and obtained products. Single crystal production methods, the effect of grain selectors, production parameters and temperature distributions.
12. Week	Czochralski single crystal growth method. Ostrogorsky submerged heater method, solidification conditions and obtained products. Dynamic solidification method for solar cells and advanced automated directional solidification furnace in space for single crystals.
13. Week	Second mid-term: homework presentation.
14. Week	Second mid-term: homework presentation.
15. Week	Final Examination
16. Week

-- TEACHING and LEARNING METHODS

-- ASSESSMENT CRITERIA

	Quantity	Total Weighting (%)
Midterm Exams	1	30
Assignment	1	30
Application	0	0
Projects	0	0
Practice	0	0
Quiz	0	0

Percent of In-term Studies		60
Percentage of Final Exam to Total Score		40

-- WORKLOAD

Activity	Total Number of Weeks	Duration (weekly hour)	Total Period Work Load
Weekly Theoretical Course Hours	14	3	42
Weekly Tutorial Hours			0
Reading Tasks		6	0
Searching in Internet and Library		8	0
Material Design and Implementation			0
Report Preparing		3	0
Preparing a Presentation	7	4	28
Presentation	7	4	28
Midterm Exam and Preperation for Midterm Exam	7	8	56
Final Exam and Preperation for Final Exam	7	5	35
Other (should be emphasized)			0
TOTAL WORKLOAD:			189
TOTAL WORKLOAD / 25:			7.56
Course Credit (ECTS):			7.5

-- COURSE'S CONTRIBUTION TO PROGRAM

NO	PROGRAM LEARNING OUTCOMES	1	2	3	4	5
1					X
2					X
3						X
4				X
5					X
6					X
7					X
8					X
9						X
10						X
11					X
12		X

-- NAME OF LECTURER(S)

(Assist. Prof. Dr. Kamil Kunt TUZUNALP )

-- WEB SITE(S) OF LECTURER(S)

(http://websitem.gazi.edu.tr/site/tuzunalp)

-- EMAIL(S) OF LECTURER(S)

( tuzunalp@gazi.edu.tr , ktuzunalp@gmail.com)

Gazi University

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GAZI UNIVERSITY INFORMATION PACKAGE - 2019 ACADEMIC YEAR