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Information
| Code | MMB208 |
| Name | Material Science II |
| Term | 2024-2025 Academic Year |
| Semester | 4. Semester |
| Duration (T+A) | 3-0 (T-A) (17 Week) |
| ECTS | 5 ECTS |
| National Credit | 3 National Credit |
| Teaching Language | Türkçe |
| Level | Lisans Dersi |
| Type | Normal |
| Label | C Compulsory |
| Mode of study | Yüz Yüze Öğretim |
| Catalog Information Coordinator | Prof. Dr. ABDULKADİR YAŞAR |
| Course Instructor |
1 2 |
Course Goal / Objective
The aim of this course is to realize the basic principles involved in materials selection based on the properties of materials and how the tests are conducted to obtain information about the mechanical properties of engineering materials.
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
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Resources
Material Science, Prof.Dr. Abdulkadir YAŞAR Lectures Notes
Notes
Prof.Dr. Melih BAYRAMOĞLU Ders Notları, Steel and its Heat Treatment by Karl-Erik
Course Learning Outcomes
| Order | Course Learning Outcomes |
|---|---|
| LO01 | Understands the basic principles of phase diagrams and uses them in thermal processing of steels |
| LO02 | Understands hardenability, how to measure it and how to analyse interpret hardenabiliy for heat treatment and designs application problems. |
| LO03 | Understands the effect of alloying elements on hardenability of steels. |
| LO04 | Interprets the relationship between the microstructure and properties of steels. |
| LO05 | Understands the formation of microstructures during heating and different cooling rates. |
| LO06 | Understands the effect of heat treatment parameters on final structure and properties. |
| LO07 | Is able to select an appropriate heat treatment according to specific requirements. |
| LO08 | Interprets the properties to be obtained according to the heat treatment processes. |
Relation with Program Learning Outcome
| Order | Type | Program Learning Outcomes | Level |
|---|---|---|---|
| PLO01 | Beceriler - Bilişsel, Uygulamalı | Understanding the fundamentals of Mechanical Engineering | |
| PLO02 | Beceriler - Bilişsel, Uygulamalı | Being well equipped with knowledge of Mathematics, Science and Basic Engineering | 3 |
| PLO03 | Yetkinlikler - Öğrenme Yetkinliği | Having capability of designing and executing experiments; examining the results and data | |
| PLO04 | Yetkinlikler - Öğrenme Yetkinliği | Being well equipped with various engineering techniques and skills | 2 |
| PLO05 | Yetkinlikler - Öğrenme Yetkinliği | Being able to design a system ,a component or a process with taking into consideration the technical, economic, enviromental, sustainability limitations | |
| PLO06 | Bilgi - Kuramsal, Olgusal | Ability to analyze the applications on a factory without any help, investigate the problems, formulizing and finding a proper solution for the problems | 2 |
| PLO07 | Yetkinlikler - Öğrenme Yetkinliği | Ability to design , developing getting ready for use of a product or manufacturing process | 3 |
| PLO08 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Understanding the importance of life-time learning and being updated | 3 |
| PLO09 | Beceriler - Bilişsel, Uygulamalı | Having advanced speaking and writing English skills | |
| PLO10 | Yetkinlikler - Öğrenme Yetkinliği | Using Computer effectively; for computed aided design, analysis and illustrating | 2 |
| PLO11 | Yetkinlikler - Bağımsız Çalışabilme ve Sorumluluk Alabilme Yetkinliği | Being prone to teamwork, well communication with others, adaptability to interdisciplinary teams | |
| PLO12 | Bilgi - Kuramsal, Olgusal | Being aware of the technical and ethical responsibility, being curious and innovative | 3 |
Week Plan
| Week | Topic | Preparation | Methods |
|---|---|---|---|
| 1 | The Transformations and Crystal Structures of Iron | Read the related topics in the lecture notes and reference books | |
| 2 | The Iron Carbon Equilibrium Diagram. Slow heating and cooling of plain carbon steels | Read the related topics in the lecture notes and reference books | |
| 3 | Time-Temperature-Transformation (TTT) Diagrams. Continuos cooling diagrams | Read the related topics in the lecture notes and reference books | |
| 4 | Hardenability. The Jominy end quench hardenability test. Practical applications of Jominy Curves | Read the related topics in the lecture notes and reference books | |
| 5 | Introduction to heat treatments. Austenizing. Spheroidizing Annealing. Recyrstallization Annealing | Read the related topics in the lecture notes and reference books | |
| 6 | Stress Relief Annealing. Full Annealing. Normalizing | Read the related topics in the lecture notes and reference books | |
| 7 | Hardening (Quenching). Heating Media. Rate of Heating. Hardening Temperature. Holding time at temperature | Read the related topics in the lecture notes and reference books | |
| 8 | Mid-Term Exam | Midterm Exam | |
| 9 | Direct Quenching to Martensite. Martempering. Austempering. Tempering | Read the related topics in the lecture notes and reference books | |
| 10 | Surface Hardening of Steel. Carburizng and heaet treatments applied after carburizing | Read the related topics in the lecture notes and reference books | |
| 11 | Selective Heating; Flame Hardening, Induction Hardening, Laser beam hardening, Electron beam hardening | Read the related topics in the lecture notes and reference books | |
| 12 | The role of design in the heat treatment of steel and residual stresses | Read the related topics in the lecture notes and reference books | |
| 13 | Case studies; Problems related to heat treat treatments and their elimination. Jominy experiments. | Read the related topics in the lecture notes and reference books | |
| 14 | Metallography | Read the related topics in the lecture notes and reference books | |
| 15 | Composite materials and production methods | Read the related topics in the lecture notes and reference books | |
| 16 | Term Exams | Final exam | |
| 17 | Term Exams | Final exam |
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 | ||