M6.1 Flashcards
1
Q
What is a ferrous material?
A
- Contains Iron as its main ingredient
- e.g. steel on aircraft structures
2
Q
Pure iron properties?
A
- Soft
- ductile
- easily formed
3
Q
What is the base material of steel?
A
- Iron
4
Q
What is hardness?
A
- resist cutting, penetration or abrasion
5
Q
What is malleability?
A
- ability to be bent, formed, shaped without cracking or breaking
6
Q
What is brittleness?
A
- materials tendency to break or shatter when exposed to stress
7
Q
What is elasticity?
A
Materials ability to return to original shape
8
Q
What is the carbon content for low carbon steel?
A
0.1%-0.3%
9
Q
Carbon content for medium carbon steel?
A
0.3%-0.5%
10
Q
Carbon content for high carbon steel?
A
0.5%-1.05%
11
Q
What does the first digit identify in classification of steels?
A
- alloying element
12
Q
What do the last 2 digits identify in the classification of steel?
A
- average carbon content in %
13
Q
What is the critical temperature?
A
-when phase change occurs (during heating or cooling)
14
Q
What is quenching?
A
-rapidly cool material after heating in water or oil etc
15
Q
What is annealing?
A
- softens steel and relieves internal stress
