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Materials and property’s Flashcards

(55 cards)

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1
Q

What is tensile strength?

A

The ability to resist being stretched

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2
Q

What is compressive strengths?

A

The ability to resist a squeezing force

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3
Q

What is torsional force?

A

The ability to resist a twisting force

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4
Q

What is the equation for stress?

A

Stress = force / cross-sectional area

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5
Q

What is the definition for stress?

A

The ability of a material to resist an applied force

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6
Q

What is the definition of yield strength?

A

It is the amount of stress needed to permanently deform a material

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7
Q

What is te definition of ultimate tensile strength?

A

Is the amount of stress at which the material breaks

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8
Q

What is the equation for strain?

A

Strain = change in length / original length

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9
Q

What is the equation for Young’s modulus?

A

Young’s modulus= stress / strain

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10
Q

What is the definition of ductility?

A

The amount that a material can be deformed

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11
Q

What is the definition of malleability?

A

The ability of a material to withstand an impact with out breaking

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12
Q

What is the definition of hardness?

A

The ability of a material to resist wear and abrasion.

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13
Q

What is the definition of toughness

A

The ability of a material to withstand impact without breaking

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14
Q

What is the definition of brittleness?

A

The potential for a material to shatter when it experience an impact.

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15
Q

What is the definition of stiffness?

A

The ability of a material to resist bending.

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16
Q

What is the definition of ferrous?

A

Metals that contain iron.

This means they are magnetic and can rust

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17
Q

What is the definition of non ferrous?

A

Metals that do not contain iron.

This means they are not magnetic and can not rust

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18
Q

What are examples of ferrous metals?

A 
Cast iron 
Low carbon steel 
Mild steel 
High carbon steel 
Stainless steel
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19
Q

What are the properties of cast iron?

A 
Good compressive strength 
Hard, so it is difficult to machine but easy to cast 
Brittle
Poor corrosion resistance 
Relatively low cost
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20
Q

What are the properties of low carbon steel?

A

Lower strength compared to other steel
Tough
Relatively low cost
Cannot be hardened

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21
Q

What are the properties of high carbon steel?

A

Strong
Hard
Difficult to form
Can be hardened

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22
Q

What are the properties of stainless steel?

A 
Strong 
Hard 
Difficult to machine 
Good corrosion resistance 
Relatively expensive
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23
Q

Examples of non ferrous metals?

Study These Flashcards
A 
Aluminium 
Copper 
Brass 
Bronze 
Lead 
Zinc
24
Q

What are the Properties of aluminium?

Study These Flashcards
A

Not as strong as steel
Relatively high cost
Good corrosion resistance
Good strength to weight ratio

25
What are the properties of copper?
Good electrical conductor Ductile very good corrosion resistance
26
What are the properties of lead?
Soft Malleable Ductile Very good corrosion resistance
27
What is the definition of annealing?
A heat treatment that makes a metal softer and easier to work
28
What is the definition of hardening?
A heat treatment that increases the hardness and strength of a metal due to a change in the arrangement of the atoms within it.
29
What is the definition of quenching?
The rapid cooling of a hot metal by immersing it in to a liquid often oil or brine
30
What is the definition of tempering?
A heat treatment to remove some of the brittleness in hardened steel at a cost of some hardness.
31
What is the definition of normalising?
A heat treatment that results in metal that is though with some ductility.
32
What is the definition of corrosion?
A reaction between the surface of a material and its environment that consumes some of the material.
33
What is the definition of thermosetting
A type of polymer that cannot be reshaped when heated
34
What is the definition of thermo plastic?
A type of polymer that can be reshaped when heated.
35
What are the properties of polyethylene terephthalate (PET)
Clear Though Shatter resistant Good resistance to moisture
36
What are the properties of high density polythene (HDPE)?
Hard Stiff Good chemical resistance Good impact strength
37
What are the properties of polyvinyl chloride (PVC)?
``` Stiff Hard Tough Good chemical resistance Weather resistance ```
38
What are the properties of low density polythene (LDPE)?
Tough Flexible Electrical insulator Good chemical resistance
39
What are the properties of polypropylene (PP)?
Hard Lightweight Good chemical resistance Good impact strength
40
What are the properties of Polystyrene?
Good toughness | Good impact strength
41
What are the properties of ABS?
Strong Rigid Harder and tougher than polystyrene Relatively high cost
42
What are the properties of acrylic?
Hard wearing
43
What are the properties of nylon?
Good resistance to wear Low friction qualities Ductile Durable
44
What are the properties of polycarbonate?
High strength and toughness | Heat resistant
45
What are the properties of epoxy?
High strength Stiff Brittle Excellent temperature, chemical and electrical resistance
46
What are the properties of polyester resin?
Good strength Stiff but brittle Excellent temperature, chemical and electrical resistance
47
What are the properties of polyurethane?
``` Hard High strength Flexible Tough Low thermal conductivity ```
48
What is the definition of composites?
A type of material made by combining two or more different types of materials. These remain physically distinct within its structure
49
What are the properties of carbon-fibre-reinforced polymer (cpr)
Extremely high strength to weight ratio Rigid Low density Expensive to produce
50
What are the properties of glass-reinforced plastic (GRP)?
High strength Low density Good chemical resistance Good thermal insulation
51
What is the definition of non-renewable?
A finite resource that is consumed as it is used and is not quickly replaced
52
What is the definition of renewable?
A sustainable resource that is either not consumed as it is used or is quickly replaced
53
What are two examples of alloys
Brass and bronze
54
Why do you make a alloy?
To combine the properties of different materials
55
What is a composite material?
Two materials that are not chemically joined?

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