Informações sobre o curso
4.7
141 ratings
17 reviews
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....
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Sugerido: 6 hours/week

Aprox. 7 horas restantes
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Globe

cursos 100% online

Comece imediatamente e aprenda em seu próprio cronograma.
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Prazos flexíveis

Redefinir os prazos de acordo com sua programação.
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Sugerido: 6 hours/week

Aprox. 7 horas restantes
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English

Legendas: English

Programa - O que você aprenderá com este curso

1

Seção
Clock
5 horas para concluir

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....
Reading
25 vídeos (Total de 180 min), 5 leituras, 4 testes
Video25 videos
1.2 One-Component Phase Diagrams and Gibbs Phase Rule11min
1.3 Regions of Two Phase Equilibrium8min
1.4 Additional One-Component Phase Diagrams3min
1.5 Binary Isomorphous Phase Diagrams8min
1.6 The Lever Rule9min
1.7 Phase Fractions6min
1.8 Equilibrium Cooling Curves7min
1.9 Equilibrium Isomorphous Diagrams6min
1.10 Analysis of a Phase Diagram5min
1.11 Deviations from Ideal Behavior10min
1.12 Eutectic Phase Diagram10min
1.13 Determination of Phase Boundaries7min
1.14 Eutectic Microstructure Development8min
1.15 Equilibrium Cooling of an Off-Eutectic Alloy7min
1.16 Equilibrium Cooling of an Off-Eutectic Alloy - Calculations6min
1.17 Microstructure Development in an Off-Eutectic Alloy6min
1.18 Invariant Reactions in Two Component Systems6min
1.19 Peritectic Phase Diagrams9min
1.20 Analysis of Complex Phase Diagrams12min
1.21 Monotectic Phase Diagrams5min
1.22 Phase Separation and Critical Points6min
1.23 Solid State Reactions11min
1.24 Summary of Invariant Reactions in Two-Component Systems2min
1.25 Summary1min
Reading5 leituras
Learning Outcomes10min
Consent Form10min
Get More from Georgia Tech10min
Supplemental Materials for this Module10min
Earn a Georgia Tech Badge and CEUs10min
Quiz4 exercícios práticos
Quiz 1.1 (Lessons 1.1 - 1.8)20min
Quiz 1.2 (Lessons 1.9 - 1.12)20min
Quiz 1.3 (Lessons 1.13 - 1.17)20min
Quiz 1.4 (Lessons 1.18 - 1.24)20min

2

Seção
Clock
5 horas para concluir

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....
Reading
33 vídeos (Total de 226 min), 3 leituras, 3 testes
Video33 videos
2.2 The Concept of a Driving Force6min
2.3 Homogeneous Nucleation6min
2.4 Undercooling and the Barrier to Homogeneous Nucleation4min
2.5 Random Clusters in the Liquid7min
2.6 Nucleation and Growth9min
2.7 Wetting5min
2.8 Heterogeneous Nucleation5min
2.9 Heterogeneous Nucleation - Spherical Cap Approximation7min
2.10 Heterogeneous Nucleation - Sodium Acetate Demonstration2min
2.11 Heterogeneous Nucleation - Applications4min
2.12 Homogeneous and Heterogeneous Nucleation6min
2.13 Types of Interfaces12min
2.14 Johnson, Mehl, and Avrami (JMA) Equation7min
2.15A Calculations Using the JMA Equation Part 14min
2.15B Calculations Using the JMA Equation Part 24min
2.16 Application of the JMA Equation7min
2.17 Developing High Strength Alloys6min
2.18 The Iron-Carbon System7min
2.19 Diffusional/DiffusionlessTransformations6min
2.20 Heat Treating a Plain Carbon Eutectoid Steel2min
2.21 Formation of Pearlite in Eutectoid Steel9min
2.22 Formation of Bainite in a Eutectoid Steel5min
2.23 Formation of Martensite9min
2.24 Heat Treatments of Austenite Decomposition Products2min
2.25 Isothermal Transformation (IT) Diagrams for a Eutectoid Steel6min
2.26 Off-Eutectoid Isothermal Transformation (IT) Diagrams7min
2.27 4340 Isothermal Transformation (IT) Diagram5min
2.28 Continuous Transformation (CCT) Diagrams13min
2.29 Precipitation Hardening in Al-Cu Alloys9min
2.30 Nonequilibrium Solidification12min
2.31 Sintering8min
2.32 Summary3min
Reading3 leituras
Learning outcomes10min
Supplemental Materials for this Module10min
Where to go from here10min
Quiz3 exercícios práticos
Quiz 2.1 (Lessons 2.1 - 2.5)20min
Quiz 2.2 (Lessons 2.6 - 2.10)20min
Quiz 2.3 (Lessons 2.11 - 2.15)20min
4.7
Briefcase

83%

consegui um benefício significativo de carreira com este curso

Melhores avaliações

por DUOct 30th 2016

Very informative and descriptive course. It encourages a person to do self calculations. Lecture and the material available are all very well explained. Would love to take similar courses.

por ABApr 25th 2018

I enjoyed this courese. It is going to be very usefull for me to carryon my research work. Thanku Coursera and JTU

Instrutores

Thomas H. Sanders, Jr.

Regents' Professor
School of Materials Science and Engineering

Sobre Georgia Institute of Technology

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....

Perguntas Frequentes – FAQ

  • Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.

  • When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.

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