Informações sobre o curso

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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.

Resultados de carreira do aprendiz

14%

consegui um benefício significativo de carreira com este curso

20%

recebi um aumento ou promoção

Certificados compartilháveis

Tenha o certificado após a conclusão

100% on-line

Comece imediatamente e aprenda em seu próprio cronograma.

Prazos flexíveis

Redefinir os prazos de acordo com sua programação.

Aprox. 10 horas para completar

Inglês

Legendas: Inglês

Resultados de carreira do aprendiz

14%

consegui um benefício significativo de carreira com este curso

20%

recebi um aumento ou promoção

Certificados compartilháveis

Tenha o certificado após a conclusão

100% on-line

Comece imediatamente e aprenda em seu próprio cronograma.

Prazos flexíveis

Redefinir os prazos de acordo com sua programação.

Aprox. 10 horas para completar

Inglês

Legendas: Inglês

Programa - O que você aprenderá com este curso

Classificação do conteúdo97%(1,160 classificações)

Semana

1

Semana 1

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.

5 horas para concluir

25 vídeos (Total 180 mín.), 5 leituras, 4 testes

25 videos

1.1 Introduction1min

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

5 leituras

Learning Outcomes10min

Consent Form10min

Get More from Georgia Tech10min

Supplemental Materials for this Module10min

Earn a Georgia Tech Badge and CEUs10min

4 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

Semana

2

Semana 2

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.

5 horas para concluir

33 vídeos (Total 226 mín.), 3 leituras, 3 testes

33 videos

2.1 Introduction5min

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

3 leituras

Learning outcomes10min

Supplemental Materials for this Module10min

Where to go from here10min

3 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

Perguntas Frequentes – FAQ

When will I have access to the lectures and assignments?
Access to lectures and assignments depends on your type of enrollment. If you take a course in audit mode, you will be able to see most course materials for free. To access graded assignments and to earn a Certificate, you will need to purchase the Certificate experience, during or after your audit. If you don't see the audit option:

The course may not offer an audit option. You can try a Free Trial instead, or apply for Financial Aid.

The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.
What will I get if I purchase the Certificate?

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.
What is the refund policy?

You will be eligible for a full refund until two weeks after your payment date, or (for courses that have just launched) until two weeks after the first session of the course begins, whichever is later. You cannot receive a refund once you’ve earned a Course Certificate, even if you complete the course within the two-week refund period. See our full refund policy.
Is financial aid available?

Yes, Coursera provides financial aid to learners who cannot afford the fee. Apply for it by clicking on the Financial Aid link beneath the "Enroll" button on the left. You’ll be prompted to complete an application and will be notified if you are approved. Learn more.

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Material Processing