Об этом курсе: Have you ever wondered why ceramics are hard and brittle while metals tend to be ductile? Why some materials conduct heat or electricity while others are insulators? Why adding just a small amount of carbon to iron results in an alloy that is so much stronger than the base metal? In this course, you will learn how a material’s properties are determined by the microstructure of the material, which is in turn determined by composition and the processing that the material has undergone. This is the second of three Coursera courses that mirror the Introduction to Materials Science class that is taken by most engineering undergrads at Georgia Tech. The aim of the course is to help students better understand the engineering materials that are used in the world around them. This first section covers the fundamentals of materials science including atomic structure and bonding, crystal structure, atomic and microscopic defects, and noncrystalline materials such as glasses, rubbers, and polymers.
Автор: Технологический институт Джорджии
Преподаватели: Thomas H. Sanders, Jr., Regents' Professor
School of Materials Science and Engineering
| Язык | English |
| Как пройти курс | Чтобы пройти курс, выполните все оцениваемые задания. |
| Оценки пользователей |
Программа курса
НЕДЕЛЯ 1
Phase Diagrams and Phase Equilibria
This course picks up with an overview of basic thermodynamics and kinetics as they pertain to the processing of crystalline materials. The first module deals with phase diagrams - charts that tell us how a material will behave given a certain set of variables such as temperature, pressure, and composition. You will learn how to interpret common and complex phase diagrams and how to extract useful information from them.
25 видео, 5 материалов для самостоятельного изучения
- Leyendo: Learning Outcomes
- Leyendo: Consent Form
- Leyendo: Get More from Georgia Tech
- Видео: 1.1 Introduction
- Видео: 1.2 One-Component Phase Diagrams and Gibbs Phase Rule
- Видео: 1.3 Regions of Two Phase Equilibrium
- Видео: 1.4 Additional One-Component Phase Diagrams
- Видео: 1.5 Binary Isomorphous Phase Diagrams
- Видео: 1.6 The Lever Rule
- Видео: 1.7 Phase Fractions
- Видео: 1.8 Equilibrium Cooling Curves
- Видео: 1.9 Equilibrium Isomorphous Diagrams
- Видео: 1.10 Analysis of a Phase Diagram
- Видео: 1.11 Deviations from Ideal Behavior
- Видео: 1.12 Eutectic Phase Diagram
- Видео: 1.13 Determination of Phase Boundaries
- Видео: 1.14 Eutectic Microstructure Development
- Видео: 1.15 Equilibrium Cooling of an Off-Eutectic Alloy
- Видео: 1.16 Equilibrium Cooling of an Off-Eutectic Alloy - Calculations
- Видео: 1.17 Microstructure Development in an Off-Eutectic Alloy
- Видео: 1.18 Invariant Reactions in Two Component Systems
- Видео: 1.19 Peritectic Phase Diagrams
- Видео: 1.20 Analysis of Complex Phase Diagrams
- Видео: 1.21 Monotectic Phase Diagrams
- Видео: 1.22 Phase Separation and Critical Points
- Видео: 1.23 Solid State Reactions
- Видео: 1.24 Summary of Invariant Reactions in Two-Component Systems
- Видео: 1.25 Summary
- Leyendo: Supplemental Materials for this Module
- Leyendo: Earn a Georgia Tech Badge and CEUs
Оцениваемый: Quiz 1.1 (Lessons 1.1 - 1.8)
Оцениваемый: Quiz 1.2 (Lessons 1.9 - 1.12)
Оцениваемый: Quiz 1.3 (Lessons 1.13 - 1.17)
Оцениваемый: Quiz 1.4 (Lessons 1.18 - 1.24)
НЕДЕЛЯ 2
Kinetics of Structural Transformations
If thermodynamics, which we covered in the previous module, tells us how a material wants to change, then kinetics tells us how and how quickly that transformation occurs. This module starts by explaining the driving force for phase transformations. We will cover the nucleation and growth of precipitates, solidification, and sintering. Finally, there are a number of lessons which apply all that has been covered in the course to understanding carbon steels.
33 видео, 3 материалов для самостоятельного изучения
- Видео: 2.1 Introduction
- Leyendo: Learning outcomes
- Видео: 2.2 The Concept of a Driving Force
- Видео: 2.3 Homogeneous Nucleation
- Видео: 2.4 Undercooling and the Barrier to Homogeneous Nucleation
- Видео: 2.5 Random Clusters in the Liquid
- Видео: 2.6 Nucleation and Growth
- Видео: 2.7 Wetting
- Видео: 2.8 Heterogeneous Nucleation
- Видео: 2.9 Heterogeneous Nucleation - Spherical Cap Approximation
- Видео: 2.10 Heterogeneous Nucleation - Sodium Acetate Demonstration
- Видео: 2.11 Heterogeneous Nucleation - Applications
- Видео: 2.12 Homogeneous and Heterogeneous Nucleation
- Видео: 2.13 Types of Interfaces
- Видео: 2.14 Johnson, Mehl, and Avrami (JMA) Equation
- Видео: 2.15A Calculations Using the JMA Equation Part 1
- Видео: 2.15B Calculations Using the JMA Equation Part 2
- Видео: 2.16 Application of the JMA Equation
- Видео: 2.17 Developing High Strength Alloys
- Видео: 2.18 The Iron-Carbon System
- Видео: 2.19 Diffusional/DiffusionlessTransformations
- Видео: 2.20 Heat Treating a Plain Carbon Eutectoid Steel
- Видео: 2.21 Formation of Pearlite in Eutectoid Steel
- Видео: 2.22 Formation of Bainite in a Eutectoid Steel
- Видео: 2.23 Formation of Martensite
- Видео: 2.24 Heat Treatments of Austenite Decomposition Products
- Видео: 2.25 Isothermal Transformation (IT) Diagrams for a Eutectoid Steel
- Видео: 2.26 Off-Eutectoid Isothermal Transformation (IT) Diagrams
- Видео: 2.27 4340 Isothermal Transformation (IT) Diagram
- Видео: 2.28 Continuous Transformation (CCT) Diagrams
- Видео: 2.29 Precipitation Hardening in Al-Cu Alloys
- Видео: 2.30 Nonequilibrium Solidification
- Видео: 2.31 Sintering
- Видео: 2.32 Summary
- Leyendo: Supplemental Materials for this Module
- Leyendo: Where to go from here
Оцениваемый: Quiz 2.1 (Lessons 2.1 - 2.5)
Оцениваемый: Quiz 2.2 (Lessons 2.6 - 2.10)
Оцениваемый: Quiz 2.3 (Lessons 2.11 - 2.15)
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Авторы
Технологический институт Джорджии
The Georgia Institute of Technology is one of the nation's top research universities, distinguished by its commitment to improving the human condition through advanced science and technology.
Georgia Tech's campus occupies 400 acres in the heart of the city of Atlanta, where more than 20,000 undergraduate and graduate students receive a focused, technologically based education.
Рейтинги и отзывы
Excelent!!
FUN AND INTERESTING COURSE.
A very good introductory course that provides a good qualitative and basic quantitative idea regarding phase transformations ranging from 1 component to multiple components. This is very essential for one to understand the conditions required to get the material of your interest to desired phase.
Coursera делает лучшее в мире образование доступным каждому, предлагая онлайн-курсы от ведущих университетов и организаций.
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I enjoyed this courese. It is going to be very usefull for me to carryon my research work. Thanku Coursera and JTU