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Metallurgy > Chapter 1, 2 and 3 > Flashcards

Chapter 1, 2 and 3 Flashcards

1
Q

What are some things that can be learned from a study of metallurgy?

A

Properties of metals

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2
Q

What metal is the main ingredient in steel?

A

Iron

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3
Q

Why are other metals added to steel?

A

Different properties

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4
Q

Metals can be divided into two general categories. Name the two categories.

A

Ferrous and nonferrous

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5
Q

Reheating of metal to slightly soften it. Helpful to make metal more stress-free, distortion-free, and crack-free,

A

Tempering

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6
Q

Heat treating process that causes the metal to relax, removing the internal stresses.

A

Process Annealing

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7
Q

Produces a hard surface on the metal part while the interior core remains relatively soft and ductile.

A

Case Hardening

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8
Q

Workable; not brittle

A

Ductile

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9
Q

Large group of atoms or molecules

A

Family

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10
Q

Family of atoms that may be large enough to be seen with the naked eye

A

Grain or Crystal

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11
Q

Special kind of mixture

A

Solution

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12
Q

Solution in which both the solvent and solute are solids.

A

Solid Solution

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13
Q

two or more metals are dissolved together in a solid solution.

A

Alloys

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14
Q

Solutes that are dissolved

A

Alloys or alloying elements

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15
Q

Measure of resistance to deformation or a measure of resistance to penetration

A

Hardness

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16
Q

Hardness is ?

A

Strength, brittleness and ductility

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17
Q

Diameter size of the resulting impression (dent) is measured?

A

Brinell Hardness Testing Method

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18
Q

Fast and crude. Hard or Soft. Sample is scratched by the edge of a tool or object

A

Scratch hardness

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19
Q

First precision Quantitative hardness test for metals. Usually used on softer metals.

A

Brinell Hardness Testing method

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20
Q

Make very small indenture; use smaller loads; good for thin, brittle or small parts;

A

Microhardness Testing Method

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21
Q

Two type of microhardness testing methods

A

Vickers and Knoop Microhardness Testing

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22
Q

3 Main differences of Vickers and Brinell

A

Penetrator has a different shape; The load (force) is less; and the methods use different units.

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23
Q

Advantage of Vickers microhardness testing?

A

Used on harder materials because the pointed penetrator can probe into a hard surface more easily than a ball penetrator can; Can be used on smaller area; requires a smalller load.

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24
Q

Uses a smaller load than Vickers; Load of merely 25 grams can be used for extremely small areas. Does not have a square base.

A

Knoop Microhardness Testing Method

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25
Q

Advantages of Knoop Microhardness testing

A

Does essentially no damage to the specimen; can be used on very thin materials and on small surface areas.

26
Q

Most widely used of all metal hardness testing method. Eliminates the effects of small surface imperfections by applying a preliminary load (minor load) to the sample before the hardness test is taken

A

Rockwell Hardness Testing Method

27
Q

What does atom mean?

A

Indivisible

28
Q

5 Properties of metal

A

Ability to conduct electricity; ability to conduct heat; Hardness; high density; not transparent.

29
Q

What type of particle is formed when two or more atoms are chemically bonded

A

a molecule

30
Q

Two differences of compound and mixture

A

Compound is chemically joined and mixture is not and characteristics of mixture the same as the items that make it up.

31
Q

In which hardness testing method is the hardest based on the diameter of the indenture?

A

Brinell hardness testing

32
Q

Which hardness testing method does the impression look like a diamond, with one axis seven times as long as the other

A

Knoop microhardness testing method

33
Q

In which hardness testing method is the hardest for you depending on the height of the bounce

A

Shore scleroscope hardness testing method

34
Q

In which to hardness testing method is the hardest depending on the depth of the penetration rather than the width of the penetration

A

Rockwell hardness testing method and Rockwell superficial hardness testing method

35
Q

In which hardness testing method is a diamond tipped magneticoStrictive Rod used

A

Sonodur

36
Q

In which hardness testing methods is a minor load applied first to get through the outer surface of the metal before making the hardness test

A

Rockwell hardness testing method and Rockwell superficial hardness testing method

37
Q

In most hardness testing methods the surface should be horizontal and as flat and smooth as possible. In which hardness testing method is this most critical?

A

Shore scleroscope hardness testing method

38
Q

In which type of hardness testing method is the hardest dependent on the width of a square, diamond shape impression?

A

Vickers hardness testing method

39
Q

In which hardness testing method is a very small impression made by diamond penetrator using a load so small it is measured in grams instead of kilograms?

A

Knoop Microhardness testing method

40
Q

Which hardness testing method employees either a C, A, E, G or K scale?

A

Rockwell hardness testing method

41
Q

List the hardness testing method that measures hardness in units of BHN?

A

Sonodur and Brinell

42
Q

Microhardness testers another name for which hardness testing methods

A

Vickers and Knoop Micro hardness testing methods

43
Q

What hardness testing method uses a 10 mm diameter ball in the 3000 kg force

A

Brinell hardness testing method

44
Q

The 30 T scale refers to which hardness testing method

A

Rockwell superficial hardness testing method

45
Q

Name the hardness testing method involves scratching the surface with 10 stones

A

Mohs scale hardness testing method

46
Q

Name hardness testing method that uses either diamond point penetrator or a ball penetrator would loads of 15 kg, 30 kg, or 45 kg?

A

Rockwell superficial hardness testing method

47
Q

Which hardness testing that is the fastest to use but does not give accurate numerical results

A

File hardness testing method

48
Q

In the 40 5T scale, what does the 45 stand for?

A

The load in kilograms

49
Q

What is the greatest hardness value, in Rockwell units, that steel can attain?

A

70 Rc

50
Q

Which Rockwell hardness test, what skill is most commonly used for hard metals?

A

Rockwell “C “

51
Q

Hardness reacting to loads

A

Strength

52
Q

Hardness with little deformity before fracture

A

Brittleness

53
Q

Hardness related to stretching

A

Ductility

54
Q

Hardness relating to ease of cutting

A

Machinability

55
Q

Hardness related to ease of stamping or extruding

A

Formability

56
Q

Hardness related to impact response

A

Toughness

57
Q

Based on the way hardness affects the resonant frequency of a piece of metal

A

Sonodur

58
Q

Extractive metallurgy

A

The study of extraction and purification of metals from their ores

59
Q

Mechanical metallurgy

A

Stacy effects of stress time temperature right of healing and cooling geometry of the metal and finish product and the effects of the environment

60
Q

Physical metallurgy

A

Studies the effects of material microstructure on the properties of metals

Metallurgy (5 decks)

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