Iron Structures

Question 1

What structure is ferrite?

Answer 1

BCC

Question 2

At what temperature does ferrite exist?

Answer 2

Below 910 degrees Celsius

Question 3

Ferrite: Magnetic or non-magnetic

Answer 3

Magnetic

Question 4

Describe the properties of a ferrite material

Answer 4

Soft and Ductile

Question 5

What structure is Austenite?

Answer 5

FCC

Question 6

At what temperature does Austenite exist?

Answer 6

910-1391 degrees Celsius

Question 7

Austenite: Magnetic or non magnetic

Answer 7

Non Magnetic

Question 8

Describe Austenite

Answer 8

Soft, moderately strong and paramagnetic

Question 9

Carbon content of Cementite?

Answer 9

6.7%

Question 10

Describe Cementite

Answer 10

Very hard and brittle

Question 11

The mechanical properties of steels largely depend on the amount of …………..

Answer 11

Cementite

Question 12

What structure is pearlite?

Answer 12

A Eutectoid structure

Question 13

What does pearlite consist of?

Answer 13

Alternating layers of Cementite and ferrite

Question 14

Which structure is stable over the UCP?

Answer 14

Austenite

Question 15

Pure Austenitic steel is produced when the material is heated to …………

Answer 15

Above the upper critical point

Question 16

The amount of carbon to produce a totally pearlitic structure is …….

Answer 16

0.8%

Question 17

The formation of steel depends upon?

Answer 17

The formation of austenite into pearlite

Question 18

The hardness of steel depends on?

Answer 18

The formation of cementite

Question 19

The properties of pearlite is?

Answer 19

It is strong without being brittle

Question 20

Wrought Iron is …….

Answer 20

Soft and malleable