Grain structures
What does the structure of martensite look like
Needle-like structures
What Metal does the Iron Carbide Phase Diagram represent
Steel
What do Grain counts determine
The Ductility and strength of a material
What is the purpose of a joiminy end quench test
Finds the hardenability of a metal
How is Martensite formed
Rapid cooling
the Point on a phase diagram where all three states of matter are present.
Triple point
Why must you polish the metal before looking for its Lattice structure under a Microscope?
So the scratches and blemishes don't blur the image
What does the amount of carbon in steel determine
The Hardness
What crystal lattice structure is Ferrite
BCC
What is the difference between the composition and temperature of the eutectic point compared to the eutectoid point?(Is it higher or lower)
the composition and temperture is both lower
What is the Variable N in this equation for Grain count
n=(LogN/Log2)+1
Grains seen in a 1 by 1 inch square in a picture of the lattice structure of a metal
What is Hardenability
Measures how easily and well a metal can be hardened
What are the properties of Cementite
High Hardness and low ductility
What is the maximum temperature the Iron Phase Diagram goes to
1600C
What is the final step needed before being able to see the lattice structure of a material under a microscope?
Etching
What crystal structure is austenite
FCC
What two microstructures are layers that make up pearlite
Ferite and Cementite
What happens at the eutectoid point
Austenite transitions to pearlite
Average Grain size
What does annealing do to Grain structures
makes the Grains larger