This lecture is designed for students who have already studied "Ferrous Materials I". The purpose of this lecture is to understand the heat treatments, microstructural control, and mechanical properties of iron and steels that are widely used in our society. In this lecture, students learn various steels such as structural steels, high strength/hardness steels, stainless steels, cast irons, and heat resistant steels. Visiting the steelworks is planned.
By the end of this lecture, students will be able to:
1) understand fundamental aspects of practical steels in terms of heat treatment, microstructural control, and mechanical properties.
2) understand the relationship between microstructure and mechanical properties, and surface modification method.
3) design and/or select the proper steels for required properties.
application and heat treatments of steels, microstructure and mechanical properties, heat treatment and microstructure, surface modification, visiting steelworks
|Intercultural skills||Communication skills||✔ Specialist skills||✔ Critical thinking skills||Practical and/or problem-solving skills|
Based on the text book. Different terms in terms of this lecture will be explained.
|Course schedule||Required learning|
|Class 1||Introduction to ferrous materials for industrial applications||reviewing the contents of "ferrous materials I".|
|Class 2||Yielding of pure-Fe and low carbon steels||reviewing yielding of Fe and carbon steels|
|Class 3||Structural steel strips and their heat treatments for automobile application, -high strength steels and thermo-mechanical controlled process -||reviewing the different steel strips for automobile application and manufacturing processes|
|Class 4||Structural steels and the heat treatments for automobile applications - hardenability and tempered embrittlement -||reviewing quenching, tempering, normalizing and phase diagram and CCT curve.|
|Class 5||Structural steels and the heat treatments - Ultrahigh-strength steels and free-cutting steels -||reviewing change in microstructure and mechanical properties of steels by different heat treatments.|
|Class 6||Microstructure (and mechanical properties) of cast iron - Maurer's structural diagram -||reviewing mechanical properties and microstructures of cast irons|
|Class 7||(Microstructure and) Mechanical properties of cast iron - Gray and white cast iron -||reviewing different cast irons and applications|
|Class 8||Exercises||review the course by 7th|
|Class 9||Surface modification of steels - carburizing and nitriding -||reviewing free energy curve, phase equilibria|
|Class 10||Surface modification of steels - induction hardening and shot peening -||reviewing dislocation and strain by work hardening|
|Class 11||High strength steels, spring steels, bearing steels, and tool steels||reviewing different high-strength steels for using spring, bearing and tools.|
|Class 12||Stainless steels - classification of stainless steels -||reviewing ferritic and austenitic stainless steels.|
|Class 13||Stainless steels - Schaeffler's diagram -||reviewing Schaeffler's diagram|
|Class 14||Heat resistant steels and alloys||reviewing heat resistant alloys and steels in terms of mechanical properties, composition, high-temperature oxidation and corrosion|
|Class 15||visiting steelworks||reviewing the course by 14th|
Tekko Zairyo, Japan institute of metals
Tekko zairyo no kayak, Uchida-rokakuho
Students' knowledge and ability to apply them to problems will be assessed. Midterm and final exams 50%, exercise problems 50%.
MAT.M305 ： Ferrous Materials I - Fundamentals of Iron and Steels