Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Engineering T-level Paper 1 > Material Poroperties > Flashcards

Material Poroperties Flashcards

(80 cards)

Start Studying
1
Q

What is density (p)

A

The mass (m) of the material contained per unit volume (v) where p = m/v measured in Kgm *-3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is thermal conductivity (k)

A

The ability of a material to conduct electricity. Measured in Wm-1K-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Electrical conductivity (s)

A

The ability of a material to conduct electricity. Measured in Sm*-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is Electrical resistivity (p)

A

The ability of a material to resist the flow of electricity (resistance is the inverse of conductivity) measured in Ωm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the Coeffienct of thermal expansion (α)

A

The rate at which a material expands or contracts when subject to a change in temperature measured in degree C*-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is corrosion resistance

A

How well a material resists the chemical, electrochemical and other processes that cause corrosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Specific heat capacity (c)

A

The quantity of heat energy required to raise the temperature of 1kg of a material by 1°c measured in J/kg°C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is hardenability

A

Indication of wheather heat treatment is able to alter the crystalline structure of a metal alloy to increase its hardness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is weldability

A

Indication of the ability of a material to be welded without cracking or adversely affecting the materials mechanical properties around the joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is tensile strength

A

The maximum pulling out tensile stress that a material can withstand before failure.
Measure in Nm-1 or Pa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is compressive strength

A

The maximum squeezing or compressive stress that a material can withstand before failure.
Measure in Nm-1 or pa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is Shear strength

A

The maximum shear stress that a material can withstand before failure.
Measured in Nm-1 or Pa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is torsional strength

A

The maximum twisting force or torque that a material can withstand before failure
Measured in Nm-1 or Pa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is hardness

A

How well a material resists surface indentation, scratching or abrasion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is toughness

A

The amount of impact energy a material can absorb up to the point when it fractures.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is brittleness

A

The tendency of a material to fracture or shatter with little or no deformation under stress

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is ductility

A

That ability for a material to undergo plastic deformation when subject to a tensile stress without failure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is elasticity

A

The ability of a deformed material under load to recover its original shape once the load causing the deformation is removed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is Plasticity

A

The ability of a deformed material under load to retain that deformation permanently when the load is removed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is malleability

A

The ability of a material to undergo permanent plastic deformation when subject to a compressive stress without failure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is a pure metal

A

Contains one type of metal in a repeating crystal lattice. There low in strength, ductile and malleable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is low carbon steel

A

Iron with 0.1-0.3% carbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What properties dose low carbon steel have

A

High ductility
Low corrosion resistance, tensile strength and hardness
Cannot be hardened by heat treatment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What applications is low carbon steel used for

A

Genital purpose
Steel beams
Car body panels
Nails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Medium carbon steel
Iron with 0.3-0.6% carbon High ductility
26
What properties dose medium-carbon steel have
Low corrosion resistance Medium ductility, tensile strength and hardness Cannot be hardened by heat treatment
27
What application dose medium carbon steel have
Railway tracks Crankshafts Gears
28
What is High-carbon steel
Iron with 0.6-1.0% carbon
29
What properties dose high-carbon steel have?
Low ductility and corrosion resistance Medium High tensile strength and hardness Cannot be hardened by heat treamtemt
30
What application does height-carbon steel use
Cutting tools Springs
31
What is Stainless steel
Iron with: >11.5% chromium <1.0% carbon
32
What are the properties of stainless steel
Low ductility High corrosion resistance Medium Medium tensile strength and hardness
33
What are the application of stainless steel
Cutlery Kitchen sinks Cookware Medical equipment
34
What is cast iron
Iron with 2-4% carbon
35
What properties does cast iron have
Low ductility, corrosion, resistance, tensile strength and hardness Cannot
36
What application is cast iron used for
Engine blocks Machine beds
37
What properties does aluminium have
Height ductility and electrical conductivity Moderate corrosion resistance Medium Very low tensile strength and hardness (Used for electrical cables)
38
What properties dose copper have
High ductility Very high electrical conductivity High corrosion resistance Low tensile strength and hardness Cannot (Used in electrical cables)
39
What properties dose nickel have
High ductility, electrical conductivity and corrosion resistance Moderate tensile strength and hardness (Used in plating and batteries)
40
What properties does zinc have
Low ductility High electrical conductivity and corrosion resistance Extremely low tensile strength and hardness
41
What are thermoplastic polymers
Polymers that soften when heated and can be moulded before being allowed to cool and re harden
42
What is ferrous metals
A group of Metals that contain iron.
43
What are thermoplastic polymers
Polymers that set permanently during manufacture and do not soften when heated
44
What are elastomers
A type of flexible polymer and consist of tangled long-chain molecules.
45
What is a composites material
Materials made up of a mixture or combination of distinctly different materials. Typically a fibre and matrix material
46
What is a smart material
A substance that can change their physical properties in response to external stimuli like temperature, light, or electric fields
47
What is an atom
The smallest possible quail it’s of an element that exhibits all the physical properties of that element.
48
What is a compound
Formed when atoms of two or more elements bond together into molecules.
49
What is metallic bonding
Metal atoms join into large structures in which their outer electrons ar free to move. These structures are held together by ,metallic bounding caused by the electrostatic forces between positive metal ions and their free-moving, delocalised electrons
50
51
What is Ionic bonding
This happens between a metal and a non metal and is due to the strong electrostatic forces between positively and neagtively charged ions. When in a liquid state they have a high electrical conductivity
52
What is covalent bonding
Happens between non metal atoms that share outer shell electrons. It’s very high in strength with a high melting point
53
What is hot working
Material processing arrived out above the recrystallisation temperature of the metal.
54
What are the disadvantages of hot working
Results in poor surface finish due to oxidation of the metal ions Dimensional accuracy of hot worked components is poor due to thermal expansion
55
What is hot rolling
Hot rolling between heavy tools is used to reduce the thickness of plates or sheets of metal.
56
What is drop forging
Uses an impact between dies to shape a billet of heated metal.
57
What is press forging
Squeezes the material between dies at very high pressure. This tends to cause deformation and therefore recrystallisation through the full thickness of the metal
58
What is cold working
Material processing carried out below the recrystallisation temperature of the material. It gives excellent surface finish, results in dimensional accuracy
59
What is brazing
A process used to join a rage of metals. Unlike welding brazing dose not melt and fuse. It instead relies on the surface adhesion of a brass or bronze filler material to make the join
60
What is sintering
Fine metal powders held in a resin binder are moulded into the shape for the required component
61
What is Case hardening
There process of adding heat and carbon to your metal to create a hard surface layer whilst keeping the inside soft. This is normally done for mild steel
62
What is quench hardening
This is the hardening of metal all throughout the structure. The material is heated and then cooled rapidly in water or oil. This increases strength and hardness but reduces ductility, making it brittle
63
What is tempering
This follows the quenching process, Achieved by re-heating the steel to between 200-300 and then quenching it again in water or oil.
64
What is normalising
Used to refine the grain structure in steels and other metals. The metal is heated up and then is left to cool down in the controlled air
65
What is annealing
A simpler process to normalising but after heating above critical temperature,the cooling process is much slower and more controlled. This makes the material ductile and soft
66
What is painting surface treatment
Once applied to the surface of a component, the solvent evaporates leaving a solid protective film on the material
67
What is plastic coating surface treatment
In powered coating an electrostatic charge is applied to fine particles of thermoplastic polymer and sprayed onto a metal component with the opposite charge
68
What is galvanising
The coating is applied by dipping the component in a tank of molten zinc.
69
What dose hooked law state
In elastic material, elongation is directly proportional to load
70
What effect does case hardening have on a material
It has increased hardness and wear resistance , while maintaining the cores toughness and ductility
71
What happens to the material when it is quench hardened
It has increased strength and hardness but reduces ductility, making the material brittle
72
What happens to the materials properties when it is tempered
Reduces hardness and increases toughness and ductility
73
What happens to a materials properties when normalised
Improves ductility and toughness, while reducing hardness and relieveing internal stresses
74
What happens to a materials properties when it is annealed
This makes the material as ductile and soft as possible
75
What are the advantages of a ferrous material
They are typically magnetic and have high tensile strength which makes them ideal for construction jobs
76
What are the advantages of a non ferrous material
They are much lighter in weight and malleable
77
What are the differences of thermosetting and thermoplastic polymers
Plastics: softer and can be reshaped, can be recycled, weak intermolecular bounds, flexible, durable Setting: irreversible hardening, not recyclable, strong chemical bounds, stronger, heat-resistant, and chemically resistant
78
What are causes of material failure
Overloading, fatigue, creep, and erosion
79
How can you prevent overloading
Through visual inspection you can identify signs of plastic deformation where a component has stretched or bent. This gives the engineers a warning that the compost is overloaded, and time to act in order to rectify the problem.
80
How can you prevent fatigue
You can reduce fatigue by optimizing load paths, changing to a high fatigue strength and fracture material.

Engineering T-level Paper 1 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions