Defected
Alloyha!
Hot Mama
Phase Out
Labor Atory
100
Bending a wire and putting more kinks in it causes it to become harder because it has an increase in this
What are dislocations (accept work-hardening)
100
List any advantage of alloys over their pure metals
What is increased corrosion resistance, add strength, make things harder, change color, change melting point, or change conductivity
100

What type of heat treatment would make steel brittle and harder?

What is quenching

100
This term describes the lowest melting point of a mixture of metals
What is eutectic
100
This is a combination of solid and liquid of a metal mixture.
What is slush
200
What type of alloy is steel?
What is interstitial
200
Traditional solder is made of what 2 metals
What is lead and tin
200

The iron wire demo glowed red hot and then the magnet fell. This demonstrates these two vocab words

What is incandescence and curie point

200
This is the name of the line of the binary phase diagram on the board that has a 1 by it
200
Drawing a wire is what term that describes metals
What is ductile
300
High carbon steel tends to break easier because of this
What is has more carbon (do not accept just carbon)
300
Brass is an alloy of what 2 metals?
What is copper and zinc
300

Describe the method of tempering steel

What is heat it red hot, quench it, then heat is low

300
This is the number of the region of the phase diagram represents evaporation
300

The name of this piece that Mrs. Ortiz holds up

Ingot
400
Brass is an example of this point defect
what is substitional
400
Nitinol is memory metal. It's made of these two metals.
What are nickel and titanium
400

This is ultimately what caused the towers beams to fail.

What is annealing of the beams softened the structure

400
Why do we use the eutectic of lead/tin mixture to solder?
What is because there is no slush region
400
You annealed your wire to allow you to pull it through the draw plate more. This is what happens to the toughness & strength of your wire... (increasing or decreasing for each)
What is strength decreases, toughness increases
500
These are the 3 different types of point defects
What are vacancy, interstitial, and substitutional
500
A penny weighs 1.55 grams and contains 2.5% copper. How many grams of ZINC are in the penny?
What is 1.51 g
500

The Iron wire initially expanded and then bounced subtly as it contracted a small amount during the heating process in our demo. This is why it expanded, and then this is the reason it contracted.

What is thermal expansion, and then solid state phase change from BCC to FCC

500

This is the month that Mrs. Ortiz's baby is due...

What is March

500
You can identify a metal by its density. What is the density of a 2 inch metal cube that weighs 19 g?
What is 2.375 g/in3
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