Final Material Science

Fill in the five blanks with the correct term (answers given below)

Isotopes of a single element have the same _________, __________, and __________ but will have different __________ and __________.

A) atomic mass

B) atomic weight

C) atomic number

D) number of neutrons

E) number of protons

B c e a d

B d

c d

M i s c s m i c

B c

A c

A) body centered cubic B) face centered cubic

What has a higher coordination number, Body centered cubic or face centered cubic?

Face Centered cubic

B

P s p p

Give one example of an element that is an allotrope.

Carbon

A g

B

F c e a b

c

A d

B d

D I d n

Increase in hardness and strength

L g d q b p f h n j

Which is engineering stress curve a or b?

B

E p p e p e p

C a b

A b c

A b c

C b a

D

D

Label the method with the way it causes edge dislocations to be impeded during plastic deformation

Solid solution strengthening

Label the method with the way it causes edge dislocations to be impeded during plastic deformation

Grain size reduction

Label the method with the way it causes edge dislocations to be impeded during plastic deformation

Strain hardening

B c a d

B d b/d d b

D

b c

B

A d

A d e

20 wt% Sb

64 wt % Sb

0.318

0.682

0.172

0.1924 mm

1.205

3.271E-6 m

340 MPa

1E5 Cycles

480 MPa

I b j p q a c e l g

D e

c e b a d

F b e a c

C e d b a

b

Give the name of the forming operation:

rolling

give the name of the forming operation:

Forging

Give the name of the forming operation:

Extrusion

Give the name of the forming operation:

Drawing

Cw hw hw cw hw cw cw hw

metal nonmetal ionic ionic covalent

c d

Mg₂Sn

Mg₂Sn + L

2

None

Name the parts of the diagram 1-4 in order

eutectoid alpha

Proeutectoid alpha

Eutectoid Fe₃C

Pearlite

B n a o g h j l m w

g d d g d

B c d

D

c

B

A d

a c

b c

B

a c

D

B

a b

C d f g j

B e i k

A h l

dispersed phase

Matrix

C b

N d i e f g l b m h