Metal properties

Question 1

Coeffiecent of thermal expansion

Answer 1

how muhc a metla expands when exposed to heat

Question 2

Modulus of elasticity

Answer 2

A materials resistant to elastic deformation.nstres/ strain relationship

Question 3

Galavanic corrosion

Answer 3

when two dismmialr metals are in the presence of an eloctoryte, one metal gives up an ion to the other metal causing it corrode

Question 4

Weldability

Answer 4

the ability of a metal to be joiiend by flux.

Question 5

what type of metal is more corrosive resitant

Answer 5

non ferrous metals

Question 6

Toughness and Impact strenght

Answer 6

the ability to resit shock

Question 7

Shear strenght

Answer 7

the ease at which a material can resits a sliding together motion

Question 8

The most common measure of ductility

Answer 8

% elongation. Elongation strian (cghnage in lengght)/length

Question 9

Torsational strenght

Answer 9

the ability to reists a load in a turning motion

Question 10

Strain

Answer 10

the deformation of a material
relating to a change from the original lengght. L .Deformation/Orginal Strength. measured in epsilon.

Question 11

Elastic and plastic Deformation

Answer 11

the material is given a load and then released, but returns to it’s original lenght. Plastic: the material is given a load and then released, but retains a permanent deformation

Question 12

Impact strenght

Answer 12

the ability to resit constant forces such as fracutruign and shock force as well as plastic deformation

Question 13

Fatigue

Answer 13

The ability to resit a constant load over a period of time.

Question 14

Flexural strength. Draw diagram

Answer 14

the ability of a material to bend before it yields. Or the amount of stress before it bends.
https://i.ytimg.com/vi/pdeaGx3fGxA/hqdefault.jpg

Question 15

Hardness

Answer 15

the abiltiy fo a material to resit a change in shape and penetration . includes resitantacne to wear, tear, scracthing

Question 16

Stress

Answer 16

the measure of a constant load/force on a material over a certain area. Force/cross-sectional area. measure in pounds per sq in or pascals.

Question 17

Shear Strenght

Answer 17

the ability of two objects to resits sling toghether

Question 18

Torsional Streghtn

Answer 18

the ability to resit twistign material

Question 19

Tensile Strenght

Answer 19

the force of being streched out and elongated

Question 20

Compression strength

Answer 20

the force of being pushed in

Question 21

Wear

Answer 21

how much a metal can resist slow deterioration over time. depends on hardness

Question 22

Proportional limit

Answer 22

the point at which a material wicthes from elastic to plastic deformation. calculated with a stress strain diagram or young modulus.

Question 22

Creep

Answer 22

Occurs slightly over time when metal exposed to a constant load. More prominent in higher temperatures

Question 23

Proportional limit

Answer 23

The point separating elastic and plastic deformation in graph

Question 24

carbon in steels and ductility relationship

Answer 24

low carbon more ductile. high carbon more brittle, has higher hardness

Question 25

Fle