Module 5 Non-Ferrous Alloys Objective One

Question 1

Ferrous Alloy

Answer 1

Fe is >50%, iron is the solvent

Question 2

Non-ferrous Alloys

Answer 2

alloy contains less then 50% iron

Question 3

Corrosion Resistance

Answer 3

the ability to prevent environmental deterioration by chemical or electro-chemical reaction.

Question 4

Conductivity

Answer 4

a property that allows electricity or heat to flow through a material

Question 5

Formability

Answer 5

the ease with which a material can be formed while satisfying quality requirements.

Question 6

Specific Strength

Answer 6

a materials ultimate tensile strength, divided by it’s density

Question 7

Ductile to Brittle transformation

Answer 7

occurs in some materials as the temperature drops, and the elasticity of the material drops, as slips can no longer occur and recover easily

Question 8

Solution Heat Treatment

Answer 8

material is heated into he single phase region where all the alloying elements are dissolved and a homogeneous structure is obtained

Question 9

Quench

Answer 9

rapid cooling of the material from a single phase region into a two phase region (material is ductile and soft)

Question 10

Aging

Answer 10

metal is heated slightly, which allows the the atoms to move and an extremely finely dispersed intermetallic precipate forms within the matrix
yield strength and hardness increases

Question 11

Overaging

Answer 11

temp too high, or held for long period of time. Stretch on atomic bonds increase, and fractures can occur

Question 12

Natural aging

Answer 12

occurs near room temp, so the precipitate will be much finer and very closely spaced compared to artificial aging

Question 13

Artificial Aging

Answer 13

material is slightly heated to allow rapid atom movement and a rapid increase in hardness