Material Properties

Question 1

The phenomenon whereby a short-wavelength photon interacts with an atom and releases an electron

Answer 1

Photoelectric Effect

Question 2

The heat energy required to change the temperature of one unit mass of the substance by one degree

Answer 2

Specific Heat

Question 3

the maximum stress the material can take without failure or fracture

Answer 3

Ultimate or Tensile Strength. Su

Question 4

Alloable Stress for ductile materials

Answer 4

Yield Strength/Factor of Safety

Question 5

The amount of energy required to propagate a preexisting flaw

Answer 5

Fracture Toughness

Question 6

continuous yielding of a material under constant stress

Answer 6

Creep

Question 7

ability of a material to deform prior to failure

Answer 7

Ductility

Question 8

Steel’s good for hot working applications

Answer 8

Group-H Steel

Question 9

oil-hardened, cold-work tool steels

Answer 9

Group O steels

Question 10

Contains less the 8 % total allowing ingredients

Answer 10

Low-Alloy Steels

Question 11

what does adding chromium due to steel

Answer 11

Improves Corrosion Resistance

Question 12

what is the reason ferritic stainless steels cannont be signifiacntly hardened

Answer 12

Their molecular stucture is stable

Question 13

This metal is very low in ductility and high in machininability

Answer 13

Gray Cast Iron

Question 14

produced by reheating white cast iron between 800 C and 1000 c for several days, followed by slow cooling

Answer 14

Malleable Cast Iron

Question 15

Materials that lack a crystalline stucture like liquids, but are rigid and maintain their shape like solids.

Answer 15

Amorphous materials

Question 16

A large molecule in the form of a long-chain of repeating units

Answer 16

Polymers

Question 17

Polymers that are resistant to heat

Answer 17

Thermosetting Polymers

Question 18

undesriable degradation of a material resulting from a chemical or physical reaction with the environment

Answer 18

Corrosion

Question 19

When the temperature is raised to slightly above the recrystallizazation temperature

Answer 19

Annealing

Question 19

used to control the microstucture of steel by preventing the formation of equilibrium phases with undesirable characteristics

Answer 19

Quenching

Question 20

a measure of resistance a material has to plastic deformation

Answer 20

Hardness

Question 21

what can the toughness of a material be determined by

Answer 21

the number of chips produced

Question 22

an intricate abrasive machining proccess that involves an abrasive wheel as a cutting tool

Answer 22

Grinding

Question 23

Uses high energy electrical discharges to shape an electrically conducting shape

Answer 23

Electrical Dicharge Machining (EDM)

Question 24

the general term used to denote the blanking bending and forming, and shearing of thin-gage metals.

Answer 24

Presswork

Question 25

repeated hammering of a workpiece to obtain the desired shape

Answer 25

Forging

Question 26

a mold is produced by packing snad around a pattern

Answer 26

Sand Molding

Question 27

a combusitable fuel and oxdizing gas are combined in a torch to fuse two metals

Answer 27

Gas Welding

Question 28

welding using electric current

Answer 28

Arc Welding