TÜRKÇE
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Information
| Code | ME208 |
| Name | Materials Science II |
| Semester | 4. Semester |
| Duration (T+A) | 3-0 (T-A) (17 Week) |
| ECTS | 5 ECTS |
| National Credit | 3 National Credit |
| Teaching Language | İngilizce |
| Level | Lisans Dersi |
| Type | Normal |
| Mode of study | Yüz Yüze Öğretim |
| Catalog Information Coordinator | Dr. Öğr. Üyesi DURMUŞ ALİ BİRCAN |
Course Goal
to introduce the students to the basic principles heat treatment applied to steels and use them to obtain required propertis in steels for design and maufacturing purposes.
Course Content
The transformation and crystal structures of iron. The iron-carbon equilibrium diagram. Time-Temperature Transformation (TTT) diagrams. Formation of pearlite. Formation of bainite. Formation of martensite. Hardenability. Heat treatment of steel. Annealing processes. Hardening. Heating media. Rate of heating. Hardening temperature. Holding time. Methods of cooling; direct quenching to martensite, martempering, austempering. Quenching media; water, brine, oil, air. Tempering. Surface hardening of steel; flame hardening, induction hardening, carburising, nitriding. The role of design in the heat treatment of steel and residual stresses.
Course Precondition
none
Resources
ME 208 Materials Science II Lecture Notes
Notes
Materials Science and Engineering: An Introduction, 8th Edition, William D. Callister Jr., David G. Rethwisch, 2010, John Wiley and Sons, ISBN-10: 111993611X The Science and Engineering of Materials, Donald R. Askeland and Wendelin J. Wright, 2015, Cengage Learning, 1305076761. Foundation of Materials Science and Engineering, William F. Smith and Javad Hashemi, 2018, Mc Graw Hill, 9781260092035 Engineering Materials 1: An Introduction to Properties, Applications and Design, 5th Edition, Jones, Ashby, 2019 Engineering Materials 2: An Introduction to Microstructures and Processing 4th Edition, Ashby, 2013 Malzeme Biliminin Temelleri, Hüseyin Uzun, Fehim Fındık, Serdar Salman, Değişim Yayınları, 2003, İstanbul. Malzeme Bilimi ve Mühendislik Malzemeleri, 1-2 Cilt, Çev. Mehmet Erdoğan, Nobel Yayın Dağıtım, 1998.David G. Rethwisch, 2010, John Wiley and Sons, ISBN-10: 111993611X 3. The Science and Engineering of Materials, Donald R. Askeland and Wendelin J. Wright, 2015, Cengage Learning, 1305076761. 4. Foundation of Materials Science and Engineering, William F. Smith and Javad Hashemi, 2018, Mc Graw Hill, 9781260092035 5. Engineering Materials 1: An Introduction to Properties, Applications and Design, 5th Edition, Jones, Ashby, 2019 6. Engineering Materials 2: An Introduction to Microstructures and Processing 4th Edition, Ashby, 2013 7. Malzeme Biliminin Temelleri, Hüseyin Uzun, Fehim Fındık, Serdar Salman, Değişim Yayınları, 2003, İstanbul. 8. Malzeme Bilimi ve Mühendislik Malzemeleri, 1-2 Cilt, Çev. Mehmet Erdoğan, Nobel Yayın Dağıtım, 1998.
Course Learning Outcomes
| Order | Course Learning Outcomes |
|---|---|
| LO01 | Understand the basic principles of phase diagrams and use them in thermal processing of steels |
| LO02 | Understand hardenability, how to measure it and how to analyse and interpret hardenabiliy for heat treatment and design applications problems |
| LO03 | Understand the effect of alloying elements on hardenability of steels |
| LO04 | Interpret the relationship between the microstructure and properties of steels |
| LO05 | Understand the formation of microstructures during heating and different cooling rates |
| LO06 | Understand the effect of heat treatment parameters on final structure and properties |
| LO07 | Be able to select an appropriate heat treatment according to a specific requirements |
| LO08 | Interpret the properties to obtained according to the heat treatment processes |
| LO09 | Understand how to obtain different properties at different locations |
| LO10 | Understand formation residual stresses and how to eliminate or minimize them during |
| LO11 | Prepare a speciemen for metallographic examination |
Relation with Program Learning Outcome
| Order | Type | Program Learning Outcomes | Level |
|---|---|---|---|
| PLO01 | Bilgi - Kuramsal, Olgusal | Student become equipped with the basic knowledge of math, science and engineering | |
| PLO02 | Bilgi - Kuramsal, Olgusal | Students gain a command of basic concepts, theories and principles in mechanical engineering | 1 |
| PLO03 | Bilgi - Kuramsal, Olgusal | Students are able to design and carry out experiments in the basic fields of mechanical engineering, and interpret the results and the data obtained from the experiments | 2 |
| PLO04 | Bilgi - Kuramsal, Olgusal | Students become equipped with a variety of skills and knowledge regarding engineering techniques | 2 |
| PLO05 | Bilgi - Kuramsal, Olgusal | Students are able to design a system, component or process in order to meet the needs of various engineering problems within technical, economic, environmental, manufacturability, and sustainability limits. | 2 |
| PLO06 | Bilgi - Kuramsal, Olgusal | Students independently review and learn the applications in an enterprise, make a critical assessment of the problems faced with, formulate problems and propose solutions by selecting the proper technique | 1 |
| PLO07 | Bilgi - Kuramsal, Olgusal | Students take initiative in identification, design, development and use of a product or production process. | 3 |
| PLO08 | Beceriler - Bilişsel, Uygulamalı | Students become aware of the necessity of lifelong learning and continuously self-renew | 2 |
| PLO09 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students use English effectively for technical or non-technical topics orally or in wirtten form. | 1 |
| PLO10 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students become effective in using computer, computer-aided drafting, design, analysis, and presentation | 1 |
| PLO11 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Students have good communicatino skills with a tendency to work in teams, and are able to work effectively as a member of an interdisciplinary team | 2 |
| PLO12 | Yetkinlikler - Öğrenme Yetkinliği | Students become aware of the technical and ethical responsibilities, as well as being inquisitive and innovative | 1 |
Week Plan
| Week | Topic | Preparation | Methods |
|---|---|---|---|
| 1 | The Transformations and Crystal Structures of Iron | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 2 | The Iron Carbon Equilibrium Diagram. Slow heating and cooling of plain carbon steels | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 3 | Time-Temperature-Transformation (TTT) Diagrams. Continuos cooling diagrams | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 4 | Hardenability. The Jominy end quench hardenability test. Practical applications of Jominy Curves | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 5 | Introduction to heat treatments. Austenizing. Spheroidizing Annealing. Recyrstallization Annealing | Lecture notes and references | Öğretim Yöntemleri: Anlatım |
| 6 | Stress Relief Annealing. Full Annealing. Normalizing | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 7 | Hardening (Quenching). Heating Media. Rate of Heating. Hardening Temperature. Holding time at temperature | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 8 | Mid-Term Exam | Lecture notes and references | Ölçme Yöntemleri: Yazılı Sınav |
| 9 | Direct Quenching to Martensite. Martempering. Austempering. Tempering | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 10 | Surface Hardening of Steel. Carburizng and heaet treatments applied after carburizing | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Soru-Cevap |
| 11 | Selective Heating; Flame Hardening, Induction Hardening, Laser beam hardening, Electron beam hardening | Lecture notes and references | Öğretim Yöntemleri: Soru-Cevap |
| 12 | The role of design in the heat treatment of steel and residual stresses | Lecture notes and references | Öğretim Yöntemleri: Anlatım |
| 13 | Case studies; Problems related to heat treat treatments and their elimination | Lecture notes and references | Öğretim Yöntemleri: Anlatım |
| 14 | Metallography | Lecture notes and references | Öğretim Yöntemleri: Anlatım, Alıştırma ve Uygulama |
| 15 | Practice for sample preparation and optical micoscopy | Lecture notes and references | Ölçme Yöntemleri: Performans Değerlendirmesi |
| 16 | Term Exams | Lecture notes and references | Ölçme Yöntemleri: Yazılı Sınav |
| 17 | Term Exams | Lecture notes and references | Ölçme Yöntemleri: Yazılı Sınav |
Student Workload - ECTS
| Works | Number | Time (Hour) | Workload (Hour) |
|---|---|---|---|
| Course Related Works | |||
| Class Time (Exam weeks are excluded) | 14 | 3 | 42 |
| Out of Class Study (Preliminary Work, Practice) | 14 | 3 | 42 |
| Assesment Related Works | |||
| Homeworks, Projects, Others | 0 | 0 | 0 |
| Mid-term Exams (Written, Oral, etc.) | 1 | 12 | 12 |
| Final Exam | 1 | 18 | 18 |
| Total Workload (Hour) | 114 | ||
| Total Workload / 25 (h) | 4,56 | ||
| ECTS | 5 ECTS | ||