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Machine Design > Review of Material Science > Flashcards

Review of Material Science Flashcards

1
Q

Engineering Materials

A

refers to selecting the correct materials for the application in which the engineered part is being used.

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2
Q

refers to selecting the correct materials for the application in which the engineered part is being used.

A

Engineering Materials

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3
Q

What entails the selection process in material selection in Engineering?

A

1.Choosing the material
2.Different Classification of Engineering materials
3.Properties of engineering materials
4.Mechanical properties and applications of engineering materials

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4
Q

Choosing the material; Different Classification of Engineering materials; Properties of engineering materials; Mechanical properties and applications of engineering materials

A

Considerations of Selecting process in Engineering Materials

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5
Q

What are the two general classification between materials

A

Metallic and Non - Metallic

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6
Q

Metallic and Non - Metallic

A

two general classification between materials

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7
Q

What are the two general classification between Metallic materials

A

Ferrous and Non - Ferrous

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8
Q

Ferrous and Non - Ferrous

A

Two general classification between Metallic materials

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9
Q

Ferrous materials are further subdivided into … ?

A

Steels and Cast Irons

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10
Q

Steels and Cast Irons

A

Different classification of ferrous materials

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11
Q

What are the three types of Steel?

A

Plain , Carbon , Alloy

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12
Q

Plain , Carbon , Alloy

A

three types of Steel

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13
Q

What are the different types of Cast Iron?

A

Grey, White, Malleable, Ductile, Nodular

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14
Q

Grey, White, Malleable, Ductile, Nodular

A

Kinds of Cast Iron

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15
Q

What are the Non - Ferrous metals mostly used in engineering?

A

Aluminum,Copper,Magnesium,Tin,Zinc,Lead,Nickel and alloys.

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16
Q

Aluminum,Copper,Magnesium,Tin,Zinc,Lead,Nickel and alloys.

A

Non - Ferrous

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17
Q

Two classifications of non-metallic materials

A

Organic and Inorganic

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18
Q

What are the different types of organic materials?

A

Plastic, wood, Paper, Rubber, Leather, Petroleum

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19
Q

Plastic, wood, Paper, Rubber, Leather, Petroleum

A

Organic

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20
Q

What are the different types of inorganic materials?

A

Minerals, Cements, Glass, Ceramic, Graphite

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21
Q

Grey cast iron

A

is an alloy of carbon and steel. Additionally, it also contains iron. Its composition is Carbon (2.5%-3.8%), Silicon (1.1%-2.8%), Manganese (0.4%-1%) and Phosphorous (0.15%).

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21
Q

is an alloy of carbon and steel. Additionally, it also contains iron. Its composition is Carbon (2.5%-3.8%), Silicon (1.1%-2.8%), Manganese (0.4%-1%) and Phosphorous (0.15%).

A

Grey cast iron

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22
Q

has a high resistance to wear. It has low ductility. And low impact strength when compared with steel. Its machinability is better than steel

A

Cast Iron

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23
Q

is recognized by the presence of carbon in the form of graphite flakes.

A

Grey Cast Iron

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24
Q

is plain carbon steel containing carbon percentage between 0.15%-0.3%. It is easily forgeable, malleable, and ductile

A

Mild Steel

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25
Q

metallic elements added to steel to make an alloy

A

nickel, chromium, vanadium and others.

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26
Q

nickel, chromium, vanadium and others.

A

metallic elements added to steel to make an alloy

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27
Q

The steel obtained by adding alloy elements is known as

A

alloy steel

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28
Q

has a high resistance to corrosion and is one of the best conductors of electricity

A

copper

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29
Q

copper

A

has a high resistance to corrosion and is one of the best conductors of electricity

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30
Q

is also another good conductor of electricity and is highly malleable and ductile

A

aluminium

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31
Q

aluminium is also used to form alloys with?

A

copper zinc and iron

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32
Q

has a very high resistance to corrosion compared to steel.

A

aluminum

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33
Q

is used in belt drives and washers

A

Leather

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34
Q

is used in packaging material and as an electrical insulator.

A

Rubber

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35
Q

Phenolform
Aldehyde
Polyesters
Epoxy Resins

A

Thermo-setting polymers

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36
Q

Thermo-setting polymers

A

Phenolform
Aldehyde
Polyesters
Epoxy Resins

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37
Q

Thermoplastics

A

PVC
Polythene
Acrylic
Resins

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38
Q

PVC
Polythene
Acrylic
Resins

A

Thermoplastics

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39
Q

consist of carbon, in chemical combination with hydrogen, oxygen or other non-metallic substances

A

Organic polymers

40
Q

simple molecules are chemically combined into long-chain molecules

A

Polymerization

41
Q

Two types of woods

A

Softwoods and Hardwoods

42
Q

Two different types of Hardwoods?

A

Temperate hardwoods and Tropical hardwood

43
Q

consists of strong and flexible cellulose fibers

A

Wood

44
Q

is the composite of thin sheets of wood. It hs grains of alternate sheets perpendicular to each other and bonded together by a polymer in between them.

A

Plywood

45
Q

are non-metallic solids made up of inorganic compounds like nitrides, oxides, and carbides.It possesses electrical, magnetic, chemical and thermal properties. These materials are used in electronic-controlled devices, computers, and the aerospace field.

A

Ceramics

46
Q

Traditional Ceramics

A

Refractories
Abrasives
Glass
Cement
Concrete

47
Q

Advanced Ceramics

A

Electroceramics
Piezoelectric ceramics
Magnetic ceramics
Optical ceramics
Conductive ceramics
Advanced Structural Ceramics
Nuclear ceramics
Bioceramics
Automotive ceramics

48
Q

Electroceramics
Piezoelectric ceramics
Magnetic ceramics
Optical ceramics
Conductive ceramics
Advanced Structural Ceramics
Nuclear ceramics
Bioceramics
Automotive ceramics

A

Advanced Ceramics

49
Q

are the mixture of materials like metals and alloys and ceramics, metals and organic polymers, ceramics and organic polymers. These are used in electrical devices and airplane parts

A

Composites

50
Q

is better than any of the individual components as regards to their strengths, heat resistance and stiffness.

A

composites

51
Q

Types of composites

A

Metal Matrix
Ceramic Matrix
Polymer Matrix

52
Q

are materials whose conductivity lies between that of conductor and insulator. These materials are generally hard and brittle. They are the building blocks of modern digital electronics. We use them to make devices like diodes, logic gates, flip-flops and latches, microprocessors, etc.

A

Semiconductors

53
Q

Semiconductors

A

are materials whose conductivity lies between that of conductor and insulator. These materials are generally hard and brittle. They are the building blocks of modern digital electronics. We use them to make devices like diodes, logic gates, flip-flops and latches, microprocessors, etc.

54
Q

Mild Steel

A

It is a good shock absorber, hence used to make manufacturing screws.
Universal beams
Case hardening steel
Gears

55
Q

It is a good shock absorber, hence used to make manufacturing screws.
Universal beams
Case hardening steel
Gears

A

Mild Steel

56
Q

Grey Cast Iron

A

Machine tool structure i.e Frame, bed.
Frames for electrical motors.
Cylinder blocks and heads for IC engine.
Lathe machine and drilling machine.

57
Q

Machine tool structure i.e Frame, bed.
Frames for electrical motors.
Cylinder blocks and heads for IC engine.
Lathe machine and drilling machine.

A

Grey Cast Iron

58
Q

Used to manufacture crankpins, crankshafts
spline shafts, gear shafts, and axles.
Also, anchor boats, Axe saw plates, hammers, valve string, and self-taping screws.

A

Medium Carbon Steel

59
Q

Medium Carbon Steel

A

Used to manufacture crankpins, crankshafts
spline shafts, gear shafts, and axles.
Also, anchor boats, Axe saw plates, hammers, valve string, and self-taping screws.

60
Q

High Carbon steel

A

Used in punches and dyes,railway rails,lift lead springs, and saws for cutting steel and broaches

61
Q

Used in punches and dyes,railway rails,lift lead springs, and saws for cutting steel and broaches

A

High Carbon Steel

62
Q

Nickel steel

A

is used to manufacture IC engine valves, turbine blades, clock pendulum, measuring instruments.

63
Q

is used to manufacture IC engine valves, turbine blades, clock pendulum, measuring instruments.

A

Nickel steel

64
Q

Vanadium steel

A

is used to make springs, gears, shafts, and various other tools.

65
Q

is used to make springs, gears, shafts, and various other tools.

A

Vanadium steel

66
Q

Copper

A

Used to make household utensils.
Used in the manufacturing of electrical cables and wires.
Used in motor windings.
Used in condensers and boilers.

67
Q

Used to make household utensils.
Used in the manufacturing of electrical cables and wires.
Used in motor windings.
Used in condensers and boilers.

A

Copper

68
Q

Aluminum

A

Since it has a high resistance to corrosion, it is used to make reflectors and telescopes.
Used to make foil as food packaging.
Used in the manufacturing of piston, electric cables, kitchen utensils, automobile parts.

69
Q

Since it has a high resistance to corrosion, it is used to make reflectors and telescopes.
Used to make foil as food packaging.
Used in the manufacturing of piston, electric cables, kitchen utensils, automobile parts.

A

Aluminum

70
Q

What are the different main properties of materials?

A

1.Mechanical
2.Physical
3.Electrical
4.Chemical
5.Thermal
6.Magnetic

71
Q

What are the different types of Mechanical properties?

A

1.Strength
2.Elasticity
3.Plasticity
4.Stiffness
5.Resillence
6.Toughness
7.Malleability
8.Ductility
9.Brittleness
10.Hardness
11. Weldability
12.Machinability

72
Q

what are the different types of Physical Properties?

A

1.Bulk Density
2.Porosity
3.Durability
4.Density
5.Density Index
6.Specific gravity
7.Fire resistance
8.Frost Resistance
9.Weathering resistance
10.Spalling Resistance
11.Water absorption
12.Water permeabilty
13.Hygroscopicity
14.Coefficent of softening
15.Refractoriness

73
Q

What are the different Chemical properties of Materials?

A

1.Chemical Resistance
2.Corrosion resistance

74
Q

What are the different types of Thermal Properties?

A

Thermal Capacity
Thermal conductivity
Thermal Resistivity
Specific Heat

75
Q

Electrical Properties

A

The properties of material to conduct or to resist electricity
through them

76
Q

Magnetic Properties

A

properties of material like permeability, hysteresis etc. are required in the case pf generators etc

77
Q

is defined as the ability of the material to resist, without rupture, external forces causing various types of stresses

A

Strength

78
Q

is the ability of the material to resist external load causing tensile stress without fracture

A

Tensile Strength

79
Q

Tensile Strength

A

is the ability of the material to resist external load causing tensile stress without fracture

80
Q

Compressive strength

A

is the ability to resist external load that causes compressive stress, without failure.

81
Q

is the ability to resist external load that causes compressive stress, without failure.

A

Compressive strength

82
Q

is defined as the ability of the material to regain its original shape and size after the deformation, when the external forces are removed

A

Elasticity

83
Q

Elasticity

A

is defined as the ability of the material to regain its original shape and size after the deformation, when the external forces are removed

84
Q

Steel is perfectly elastic within the

A

elastic limit

85
Q

is defined as the ability of the material to retain the deformation produced under the load on permanent basis. In this case, the external forces deform the metal to such an extent that it cannot fully recover its original dimensions.

A

Plasticity

86
Q

is an important consideration in machine tool components

A

Elasticity

87
Q

is desirable for components made by press working operations

A

Plasticity

88
Q

represents the maximum value of stress at which the stress-strain curve is linear.

A

proportionality limit

89
Q

proportionality limit

A

represents the maximum value of stress at which the stress-strain curve is linear.

90
Q

represents the maximum value of stress at which there is no permanent set.

A

elastic limit

91
Q

which represents the value of stress above which the strain will begin to increase rapidly.

A

yield point

92
Q

The stress at the yield point is called the

A

yield strength

93
Q

which is the maximum value of stress on the stress-strain diagram

A

Ultimate point

94
Q

phenomena when the load applied to specimen causes its cross-sectional area in a localized region to reduce significantly.

A

necking

95
Q

is the point at which the material fails and separates into pieces

A

fracture point

96
Q

a mathematical equation that can be used to approximate the stress strain curve of a material

A

Ramberg- Osgood stress strain

97
Q

is defined as the ability of the material to resist deformation under the action of external load.

A

Stiffness

98
Q
A

Machine Design (6 decks)

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