Engineering Materials Flashcards
1
Q
Brittleness
A
Tendency to fracture without appreciable deformation
2
Q
Ductility
A
- Property that permits permanent deformation before fracture in tension
- Property of a material by virtue of which it may be plastically elongated
3
Q
Elasticity
A
- Ability of a material to be deformed and to return to its original shape
- Property which enables the material to regain its original form and shape when externally applied force is removed
4
Q
Hardness
A
Resistance to indentation or penetration
5
Q
Machinability
A
Relative ease with which a material can be cut
6
Q
Malleability
A
- Susceptibility to extreme deformation in rolling and hammering
- Property of a material by virtue of which it may be plastically compressed
7
Q
Plasticity
A
- Ability of a metal to be deformed considerably without rupture
- Property of a material by virtue of which permanent deformation will occur
8
Q
Stiffness
A
Ability to resist deformation
9
Q
Toughness
A
Ability to withstand shock load without breaking
10
Q
Poisson’s ratio
A
- Ratio of transverse strain to longitudinal strain.
- Constant within the proportional limit.
11
Q
Proportionality limit
A
Maximum stress to which a material can be subjected without any deviation from the proportionality of stress and strain
12
Q
Coal that has been previously burned
A
Coke
13
Q
The earth and stone mixed with the iron oxides
A
Gangue
14
Q
The place where the process to reduce iron oxides to pure iron takes place
A
Blast furnace
15
Q
Used to reduce the carbon content and purify the iron
A
Bessemer and oxygen processes
