Introduction to Materials Science: Questions and Exercises, Übungen von Externes Rechnungswesen / Rechnungslegung

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MSE- 225

INTRODUCTION TO MATERIALS SCIENCE

2021 - 2022 Fall

• INTRODUCTION-

Some questions related to material science from everyday life...

• Why is glass brittle, while copper is ductile? What is meant by a ductile material?
• If we take two rods, one of Al and one of steel, why is it easier to bend the Al rod as compared to the steel rod?
• How can I change properties like hardness, without changing the composition (say of 0.8% C steel)?
• Why is wire of copper conducting, while piece of brick or wood non-conducting?
• Why is glass transparent, while any typical metal is opaque?
• Why does Iron corrode easily, while Aluminium does not (or does not seem to?!)?
• Usually, good thermal conductors are also good electrical conductors. Why is this so? Why is diamond a good thermal conductor, but not a good electrical conductor?
• If I pull a spring and then release the load, it ‘comes back’ to its original shape. However, a if I bend an aluminium rod, does not come back to its original shape. How can one understand these observations?

10/7/

Why Study Materials Science &

Engineering

10/7/

Why Study Materials Science &

Engineering

The Materials Selection Process

Goal of MSE 225 …

• To understand the relationship between
  • Processing
  • Structure
  • Properties
  • Performance
• To give the ability to use the right material for the right

job.

• To help you recognize the design opportunities

offered by material selection in your own discipline

Materials Science Tetrahedron

Materials Science Tetrahedron

Property

Property

Property

Property