COURSE UNIT TITLE

: PHASE DIAGRAMS

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
ELECTIVE

Offered By

Metallurgical and Materials Engineering

Level of Course Unit

First Cycle Programmes (Bachelor's Degree)

Course Coordinator

ASSOCIATE PROFESSOR ESRA DOKUMACI ALKAN

Offered to

Metallurgical and Materials Engineering

Course Objective

The aims of this course are to create phase equilibrium diagrams by associating with free energy diagrams; to describe the stable phases in the diagrams; to examine the behavior of phases at varying temperatures, pressures and compositions; to interpret the extractive metallurgy and material development processes by using phase diagrams.

Learning Outcomes of the Course Unit

1   To define the basic concepts of metallurgical thermodynamics, solution thermodynamics and phase equilibrium diagrams.
2   To create the phase equilibrium diagrams by using Gibbs free energy diagrams at different temperatures, pressures and compositions.
3   To draw the phase equilibrium diagram of a system based on its definations and to define a system based on its phase equilibrium diagram.
4   To calculate the phase compositions and their ratios by determining the stable phases in phase equilibrium diagrams under different conditions.
5   To specify the phase transformations under both equilibrium and non-equilibrium cooling by relating with their microstructures.
6   To associate a three-component system with its two-component subsystems by creating the phase equilibrium diagrams at the specified composition ranges.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Introduction, basic principles of thermodynamics related to phase equilibrium diagrams
2 One component systems: Gibbs free energy as a function of temperature and pressure.
3 Two component systems: ideal solution, regular solution, real solution concepts; chemical potential, activity, ordered and intermediate phases
4 Two component systems: equilibrium in heterogeneous systems; simple binary phase equilibrium diagrams and miscibility gap
5 Two component systems: phase transformation reactions and systems containing intermediate phases; Fe-C phase equilibrium diagram
6 Two component systems: the Gibbs' phase rule, the level rule, solubility and solid solutions; immiscibility and spinodal decompositon
7 1. Midterm exam
8 Three component systems: finding composition in ternary phase equilibrium diagrams and determining isotherm sections; ternary phase equilibrium diagrams involving two, three and four phases
9 Three component systems: ternary phase equilibrium diagrams with more than four phases; solidification and melting processes in three component systems; phase formations, their amounts and compositions during the solidification process
10 Three component systems: the eutectic and peritectic reactions in equilibrium solidification conditions; intermediate phases in ternary phase equilibrium diagrams; the transformation reactions in the melting process
11 Three component systems: vertical section method in ternary phase equilibrium diagram; deriving binary phase equilibrium diagrams from ternary phase equilibrium diagrams
12 2. Midterm exam
13 The usage of phase equilibrium diagrams in the production of metal alloys, heat treatment and solidification; determination of microstructures using phase equilibrium diagram
14 The usage of phase equilibrium diagrams in refractory, ceramic and cement technologies

Recomended or Required Reading

1. Porter, D. A., & Easterling, K. E. (1992). Phase Transformations in Metals and Alloys.
2. Gordon, P. (1968). Principles of phase diagrams in materials systems. MCGRAW HILL, NEW YORK. 1968, 232 P.
3. Hummel, F. A. (1984). Introduction to phase equilibria in ceramic systems.

Planned Learning Activities and Teaching Methods

Lecturing, exams and homeworks

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE1 MIDTERM EXAM 1
2 MTE2 MIDTERM EXAM 2
3 ASG ASSIGNMENT
4 QUZ Quiz
5 FIN FINAL EXAM
6 FCG FINAL COURSE GRADE MTE1 * 0.15 + MTE2 * 0.15 + ASG * 0.20 + QUZ * 0.10 + FIN * 0.40
7 RST RESIT
8 FCGR FINAL COURSE GRADE (RESIT) MTE1 * 0.15 + MTE2 * 0.15 + ASG * 0.20 + QUZ * 0.10 + RST * 0.40


*** Resit Exam is Not Administered in Institutions Where Resit is not Applicable.

Further Notes About Assessment Methods

None

Assessment Criteria

LO 1-6 will be evaluated by the questions in both howeworks and exams.

Language of Instruction

English

Course Policies and Rules

Lectures and examinations are carried out with respect to regulation of Engineering Faculty of Dokuz Eylul University, named "Principles of Education and Examination Practice".

If the homeworks are cited without reference directly from another source or quoted directly from other students, the relevant study is excluded from the evaluation.

Contact Details for the Lecturer(s)

Asst. Prof. Dr. Esra DOKUMACI
Dokuz Eylül University, Faculty of Engineering,
Metalurgical and Materials Engineering
Tınaztepe Campus, 35160 Buca / IZMIR
Tel+90 232 3017468
E-mail: esra.dokumaci@deu.edu.tr

Asst. Prof. Dr. Murat ALKAN
Dokuz Eylül University, Faculty of Engineering,
Metalurgical and Materials Engineering
Tınaztepe Campus,
35160 Buca / IZMIR
Tel+90 232 3017464
E-mail: alkan.murat@deu.edu.tr

Office Hours

The student counseling hours are stated in the weekly course schedule at the door of the academic staff.

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 12 3 36
Preparation for final exam 1 15 15
Preparation for midterm exam 2 10 20
Preparations before/after weekly lectures 12 2 24
Preparing assignments 2 10 20
Preparation for quiz etc. 3 2 6
Final 1 2 2
Midterm 2 2 4
Quiz etc. 3 1 3
TOTAL WORKLOAD (hours) 130

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11PO.12
LO.15
LO.24
LO.343432
LO.4422232
LO.5533322324
LO.64332232

CONTACT INFORMATION
Dokuz Eylül Üniversitesi Cumhuriyet Bulvarı No: 144 35210 Alsancak / İZMİR
Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

Copyright 2015 DEÜ. BİD

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