Properties of Metals Flashcard

Front

What is hexagonal close-packed (HCP) structure?

Back

A crystal structure where atoms are arranged in a hexagonal pattern, maximizing packing density.

Front

What is the significance of packing density in materials?

Back

Higher packing density often leads to improved mechanical properties and stability of materials.

Front

What is thermal expansion?

Back

The tendency of materials to increase in size when heated.

Front

What is the yield point in a stress-strain curve?

Back

The point at which a material begins to deform plastically and will not return to its original shape.

Front

What is the difference between elastic and plastic deformation?

Back

Elastic deformation is reversible, while plastic deformation is permanent.

Front

What is a simple cubic structure?

Back

A crystal structure where each atom touches only six neighbors, forming a cube.

Front

What is the body-centered cubic (BCC) structure?

Back

A crystal structure where atoms are located at each corner of a cube and one atom is at the center.

Front

What is face-centered cubic (FCC) structure?

Back

A crystal structure where atoms are located at each corner and the centers of all the faces of the cube.

Front

How does temperature affect the performance of materials?

Back

Increased temperature can lead to thermal expansion, affecting the material's dimensions and properties.

Front

What is the ultimate tensile strength?

Back

The maximum stress a material can withstand while being stretched or pulled before breaking.