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MaterialsMechanical EngineeringEngineering DesignElectrical Engineering

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教學大綱 - 您將從這門課程中學到什麼

1
完成時間為 1 小時

Course 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.

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10 個視頻 (總計 41 分鐘), 2 個測驗
10 個視頻
Summary2分鐘
Crystallography and the Electron Microscope6分鐘
Introduction to the Arrhenius Relationship5分鐘
The Arrhenius Relationship Applied to the Number of Vacancies in a Crystal4分鐘
Point Defects and Solid State Diffusion3分鐘
The Arrhenius Relationship Applied to Solid State Diffusion2分鐘
Summary36
2 個練習
Thing 110分鐘
Thing 224分鐘
2
完成時間為 1 小時

Dislocations 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 個視頻 (總計 34 分鐘), 2 個測驗
10 個視頻
The Stress versus Strain (Tensile) Test3分鐘
The “Big Four” Mechanical Properties3分鐘
Focusing on Strength and Stiffness4分鐘
Beyond the Tensile Strength4分鐘
Focusing on Ductility1分鐘
A Fifth Parameter – Toughness2分鐘
Summary1分鐘
2 個練習
Thing 38分鐘
Thing 416分鐘
3
完成時間為 1 小時

Creep 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 個視頻 (總計 34 分鐘), 2 個測驗
8 個視頻
Mechanisms for Creep Deformation3分鐘
Summary1分鐘
The Ductile-to-Brittle Transition and Crystal Structure7分鐘
Plotting the Ductile-to-Brittle Transition5分鐘
Summary1分鐘
2 個練習
Thing 516分鐘
Thing 68分鐘
4
完成時間為 1 小時

Fracture 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 個視頻 (總計 43 分鐘), 2 個測驗
10 個視頻
A Play of Good versus Evil!4分鐘
Summary33
Introduction to Fatigue1分鐘
Defining Fatigue6分鐘
The Fatigue Curve and Fatigue Strength5分鐘
Mechanism of Fatigue5分鐘
Summary1分鐘
2 個練習
Thing 718分鐘
Thing 812分鐘
4.6
244 個審閱Chevron Right

27%

完成這些課程後已開始新的職業生涯

15%

通過此課程獲得實實在在的工作福利

來自Materials Science: 10 Things Every Engineer Should Know的熱門評論

創建者 ZMJul 18th 2017

This course is good for engineers. It illustrated many fundemental and important concept in materials science. The teacher is great who explain nearly everthings in details with words and experiments.

創建者 SSJul 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

講師

Avatar

James Shackelford

Distinguished Professor Emeritus
Department of Chemical Engineering and Materials Science

關於 加州大学戴维斯分校

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....

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