Flashcard on Phase Diagrams and Materials Science

Front

What is a phase in a material system?

Back

A portion with uniform characteristics

Front

What does the solubility limit refer to?

Back

The maximum amount of a component that can dissolve

Front

Example of a binary isomorphous system: Copper-Silver alloy, Iron-Carbon alloy, Lead-Tin alloy, Cu-Ni alloy

Back

Cu-Ni alloy

Front

What is the primary characteristic of a eutectic reaction?

Back

Involves two solid phases and a liquid

Front

What is the significance of the lever rule in phase diagrams?

Back

To calculate the amounts of phases present

Front

What does a phase diagram represent?

Back

Equilibrium phases as a function of temperature and pressure

Front

In the iron-carbon phase diagram, what is the maximum solubility of carbon in α-ferrite?

Back

0.022 wt%

Front

What is the eutectoid composition in the iron-carbon system?

Back

0.76 wt% C

Front

What type of microstructure forms in eutectoid steel?

Back

Pearlite

Front

Which of the following describes a peritectic reaction?

• A liquid phase forms two new liquid phases
• A solid phase transforms into a liquid
• A liquid transforms into two solid phases
• A solid and liquid phase form a new solid phase

Back

A solid and liquid phase form a new solid phase