IET Test 2

Question 1

steels that undergo a similar process, but structure will be coarse pearlite with excess cementite.

Answer 1

Hypereutectoid steels

Question 2

Heating steel to a temperature higher than in annealing (cheaper than annealing) (not as time consuming as annealing)

Answer 2

Normalizing

Question 3

Recrystallization is induced after a material has been cold worker to reduce strain hardening effects. (Note cast iron is not cooled worked)

Answer 3

Process Annealing

Question 4

Reduces residual stresses in casting, welded assemblies, and cold formed products. Materials are heated and then slow cooled.

Answer 4

stress relief annealing

Question 5

(Not iron based) metals do not have significant phase transitions (Not polymorphic)

Answer 5

Nonferrous metals

Question 6

(Not iron based) metals do not have significant phase transitions (Not polymorphic)

Answer 6

Nonferrous metals

Question 7

Has a number of different crystal structures.

Answer 7

Polymorphic

Question 8

Is a subsequent heating method to give the steel necessary ductility and fracture toughness

Answer 8

Tempering

Question 9

Adding an alloy element is to increase

Answer 9

Harden Ability and Toughness

Question 10

Eutectoid Steel is about _____ percent carbon

Answer 10

.77%

Question 11

Base metal dissolves other atoms as__________ solutions

Answer 11

Substitutional or interstitial solutions

Question 12

Increased strength by plastic deformation is called

Answer 12

Strain Hardening

Question 13

Metals with stronger grains tend to be stronger is an example of

Answer 13

Grain Size Refinement

Question 14

Strength that is obtained from a nonequilibrium structure

Answer 14

Precipitation Hardening

Question 15

Are processes of controlled heating and cooling to purposefully alter a materials structure and properties.

Answer 15

Heat Treatments

Question 16

Cooling a hot piece of metal rapidly, as in water or oil.

Answer 16

quenching

Question 17

Is a slow cooling method to insure uniforming properties throughout the process

Answer 17

Annealing

Question 18

Heated to convert the grain structure to homogenous single-phase Austenite, then control cooled.

Answer 18

Hypoeutectoid Steels

Question 19

Plastic Deformation increases strength in most metals is caused by

Answer 19

Strain Hardening/Work Hardening

Question 20

Properties that vary with direction

Answer 20

Anisotropic

Question 21

When the break occurs before plastic deformation

Answer 21

Brittle Fracture

Question 22

what happens when a metal is held above its recrystallization temperature is 1/2 (t-melting)

Answer 22

Grain Size Increases

Question 23

has a definable structure and composition. Can be continuous (gas or liquid) or discontinuous (solid grains/crystal) it can also be a pure substance like after or a solution like salt in water.

Answer 23

Phase

Question 24

is the solubility limit of the two materials at a given temperature

Answer 24

Saturation Point

Question 25

Properties that are uniform in all direction are considered to be

Answer 25

iso tropic

Question 26

Plastic deformation that occurs before the material breaks.

Answer 26

Ductile Fracture

Question 27

what tis the recrystallization melting temp

Answer 27

1/2 of the material

Question 28

Keeps crystallization and yield strength, if the material does not reheel it is -_________

Answer 28

Cold Working

Question 29

is a diagram that shows the natural tendencies of a material (does it become a solid or a liquid or a combination of a solid and liquid)

Answer 29

Equilibrium Phase Diagram

Question 30

are encountered when a material changes phase (Gas to a liquid or solid to a liquid)

Answer 30

Transitions

Question 31

(A special form of transition) occurs when a material goes from a solid to a gas-Freeze drying operates on this principle.

Answer 31

Sublimation

Question 32

Lowest temperature where material is a 100% liquid.

Answer 32

Liquidous Line

Question 33

Highest temperature where material is 100 percent solid

Answer 33

Solidus Line

Question 34

if the __________ is decreased then the amount of solute that can be held in a solution decrease

Answer 34

Temperature

Question 35

if they cannot stay in solution

Answer 35

insoluble

Question 36

steels having less than the eutectoid amount of carbon are __________steels

Answer 36

hypoeutectoid

Question 37

steels having more than the eutectoid amount pf carbon called _____________ steels

Answer 37

hypereutectoid

Question 38

Increased strength in metals is caused by _________ at defects

Answer 38

Dislocation Pile Ups

Question 39

Act as barriers to dislocation movements

Answer 39

Grain Boundaries

Question 40

A practice that causes New crystallization and new yield strength

Answer 40

Hot Working

Question 41

Temperature/Vibration causes

Answer 41

Heat Energy