Classification & Testing
Processing, Structure, Properties, Performance
The points of the Material Classification Tetrahedron.
There are 14 of these, named after Auguste Bravais
Pearlite, Cementite, and Ferrite are types of this
What are Grain Structures?
Annealing will make a metal _____
What is softer?
The classifications of woods
Hardwood and Softwood
This test has scales such as B or C
Simple, FCC, and BCC
What are types of cubic structures?
ASTM E-112
What is the ASTM designation for determining grain count?
Tempering is used typically after this process to reduce brittleness and reduce stress
Quenching
This classification has a more varied cell structure.
What are hardwoods.
This test measures the "toughness" of a material.
What is impact testing?
This is the angle of unit cells in Orthohombric and Tetragonal systems.
What is 90 degrees?
Characterized by needle-like structures
Brine, Oil, Nitrogen, and Water are examples of this
These are the components of a composite
What are fibers and a matrix.
Liquid penetrants, ultrasonic, and magnetic particle imaging are examples of this
What is Non-Destructive Testing (NDT)?
No sides are the same in these lattice systems.
What are Monoclinic and Triclinic?
Eutectic Point
Where on the Iron-Iron Carbide phase diagram is the structure wholly pearlite?
Quenching
Wood are strongest in tension when oriented this way to the grain.
What is parallel?
This is the energy absorption in joules for an impact test where the impact arm is 70cm at 40kg with an initial angle of 80deg and a final angle of 20deg
What is 155 Joules?
These two crystal systems have the densest packing.
What are FCC and CPH?
Referred to as Gamma-iron, what is the lowest temperature that Austenite will enter the liquid phase (in degrees C)?
What is 1147 degrees Celsius?
The correct sequence of grain development in heat treatment
What is Stress relief, recrystallization, grain growth.
Cellulose and Lignen are these components of wood