We explore “10 things” that range from the menu of materials available to engineers in their profession to the many mechanical and electrical properties of materials important to their use in various engineering fields. We also discuss the principles behind the manufacturing of those materials.
By the end of the course, you will be able to:
* Recognize the important aspects of the materials used in modern engineering applications,
* Explain the underlying principle of materials science: “structure leads to properties,”
* Identify the role of thermally activated processes in many of these important “things” – as illustrated by the Arrhenius relationship.
* Relate each of these topics to issues that have arisen (or potentially could arise) in your life and work.
If you would like to explore the topic in more depth you may purchase Dr. Shackelford's Textbook:
J.F. Shackelford, Introduction to Materials Science for Engineers, Eighth Edition, Pearson Prentice-Hall, Upper
Saddle River, NJ, 2015
Materials Science: 10 Things Every Engineer Should Know
proposé par
Materials Science: 10 Things Every Engineer Should Know
University of California, Davis
À propos de ce cours
4.6
813 notes
Compétences que vous acquerrez
MaterialsMechanical EngineeringEngineering DesignElectrical Engineering
Programme du cours : ce que vous apprendrez dans ce cours
Semaine
1Course Overview / The Menu of Materials / Point Defects Explain Solid State Diffusion
Welcome to week 1! In lesson one, you will learn to recognize the six categories of engineering materials through examples from everyday life, and we’ll discuss how the structure of those materials leads to their properties. Lesson two explores how point defects explain solid state diffusion. We will illustrate crystallography – the atomic-scale arrangement of atoms that we can see with the electron microscope. We will also describe the Arrhenius Relationship, and apply it to the number of vacancies in a crystal. We’ll finish by discussing how point defects facilitate solid state diffusion, and applying the Arrhenius Relationship to solid state diffusion.
10 vidéos (Total 41 min), 2 quiz
10 vidéos
Course Introduction2 min
Six Categories of Engineering Materials8 min
Structure Leads to Properties5 min
Summary2 min
Crystallography and the Electron Microscope6 min
Introduction to the Arrhenius Relationship5 min
The Arrhenius Relationship Applied to the Number of Vacancies in a Crystal4 min
Point Defects and Solid State Diffusion3 min
The Arrhenius Relationship Applied to Solid State Diffusion2 min
Summary min
2 exercices pour s'entraîner
Thing 110 min
Thing 224 min
Semaine
2Dislocations Explain Plastic Deformation / Stress vs. Strain -The “Big Four” Mechanical Properties
Welcome to week 2! In lesson three we will discover how dislocations at the atomic-level structure of materials explain plastic (permanent) deformation. You will learn to define a linear defect and see how materials deform through dislocation motion. Lesson four compares stress versus strain, and introduces the “Big Four” mechanical properties of elasticity, yield strength, tensile strength, and ductility. You’ll assess what happens beyond the tensile strength of an object. And you’ll learn about a fifth important property – toughness.
10 vidéos (Total 34 min), 2 quiz
10 vidéos
Plastic Deformation by Dislocation Motion8 min
Summary min
The Stress versus Strain (Tensile) Test3 min
The “Big Four” Mechanical Properties3 min
Focusing on Strength and Stiffness4 min
Beyond the Tensile Strength4 min
Focusing on Ductility1 min
A Fifth Parameter – Toughness2 min
Summary1 min
2 exercices pour s'entraîner
Thing 38 min
Thing 416 min
Semaine
3Creep Deformation / The Ductile-to-Brittle Transition
Welcome to week 3! In lesson five we’ll explore creep deformation and learn to analyze a creep curve. We’ll apply the Arrhenius Relationship to creep deformation and identify the mechanisms of creep deformation. In lesson six we find that the phenomenon of ductile-to-brittle transition is related to a particular crystal structure (the body-centered cubic). We’ll also learn to plot the ductile-to-brittle transition for further analysis.
8 vidéos (Total 34 min), 2 quiz
8 vidéos
The Creep Curve5 min
Creep Deformation and the Arrhenius Relationship8 min
Mechanisms for Creep Deformation3 min
Summary1 min
The Ductile-to-Brittle Transition and Crystal Structure7 min
Plotting the Ductile-to-Brittle Transition5 min
Summary1 min
2 exercices pour s'entraîner
Thing 516 min
Thing 68 min
Semaine
4Fracture Toughness / Fatigue
Welcome to week 4! In lesson seven we will examine the concept of critical flaws. We’ll define fracture toughness and critical flaw size with the design plot. We’ll also distinguish how we break things in good and bad ways. Lesson eight explores the concept of fatigue in engineering materials. We’ll define fatigue and examine the fatigue curve and fatigue strength. We’ll also identify mechanisms of fatigue.
10 vidéos (Total 43 min), 2 quiz
10 vidéos
Fracture Toughness and the Design Plot8 min
Critical Flaw Size and the Design Plot5 min
A Play of Good versus Evil!4 min
Summary min
Introduction to Fatigue1 min
Defining Fatigue6 min
The Fatigue Curve and Fatigue Strength5 min
Mechanism of Fatigue5 min
Summary1 min
2 exercices pour s'entraîner
Thing 718 min
Thing 812 min
4.6
207 avis12%
83%
Meilleurs avis
par PC•Mar 5th 2018
This course was alot more educational then I thought it would be but now I compare what has shaped me in in life to creep deformation. I especially loved the lecture " a play on good and evil".
par SS•Jul 25th 2017
It helped me a lot to have a basic idea about different types of materials, processing and properties. I earned basic knowledge about materials and I can teach these relevant topics to students
Enseignant
James Shackelford
Distinguished Professor EmeritusDepartment of Chemical Engineering and Materials Science
À propos de University of California, Davis
UC Davis, one of the nation’s top-ranked research universities, is a global leader in agriculture, veterinary medicine, sustainability, environmental and biological sciences, and technology. With four colleges and six professional schools, UC Davis and its students and alumni are known for their academic excellence, meaningful public service and profound international impact.
Foire Aux Questions
Quand aurai-je accès aux vidéos de cours et aux devoirs ?
Une fois que vous êtes inscrit(e) pour un Certificat, vous pouvez accéder à toutes les vidéos de cours, et à tous les quiz et exercices de programmation (le cas échéant). Vous pouvez soumettre des devoirs à examiner par vos pairs et en examiner vous-même uniquement après le début de votre session. Si vous préférez explorer le cours sans l'acheter, vous ne serez peut-être pas en mesure d'accéder à certains devoirs.
À quoi ai-je droit si j'achète le Certificat ?
Lorsque vous achetez un Certificat, vous bénéficiez d'un accès à tout le contenu du cours, y compris les devoirs notés. Lorsque vous avez terminé et réussi le cours, votre Certificat électronique est ajouté à votre page Accomplissements. À partir de cette page, vous pouvez imprimer votre Certificat ou l'ajouter à votre profil LinkedIn. Si vous souhaitez seulement lire et visualiser le contenu du cours, vous pouvez accéder gratuitement au cours en tant qu'auditeur libre.
Quelle est la politique de remboursement ?
Une aide financière est-elle possible ?
D'autres questions ? Visitez le Centre d'Aide pour les Etudiants.
Coursera propose un accès universel à la meilleure formation au monde,
en partenariat avec des universités et des organisations du plus haut niveau, pour proposer des cours en ligne.
© 2018 Coursera Inc. Tous droits réservés.
