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MEEN 360
The Science and Engineering of Materials ch.8
17
Mechanical Engineering
Undergraduate 3
04/03/2011

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Cards

Term
Anisotropic behavior can result from processing of metals. This means:
Definition
some properties of the material depend on its spatial orientation.
Term
Extrusion is the process of:
Definition
pushing metal through a die to produce an object of constant cross section, such as a rod.
Term
Forging is the process of:
Definition
compressing metal into a die to produce a desired shape.
Term
Glass is commonly processed in a variety of ways, including all of the following except:
Definition
shot peening.
Term
Thermoplastics are:
Definition
polymers that can be melted and reformed and are capable of being strengthened when their constituent molecules are aligned.
Term
The process of strengthening metals usually results in
Definition
multiplication of existing dislocations.
Term
In general, thermoplastics can be processed using many of the same techniques for processing metals, such as extrusion. (T or F)
Definition
True
Term
In which step of annealing does the dislocation density remain unchanged?
Definition
Recovery
Term
What does cold working result from?
Definition
Increased dislocation density
Term
Which is NOT an advantage of cold working a metallic material?
Definition
Corrosion resistance is improved
Term
How much can a plate plastically deform during hot working?
Definition
An almost unlimited amount
Term
What is a result of hot working?
Definition
Elimination of imperfections
Term
What material can be hot worked at room temperature?
Definition
Lead
Term
What reduces the recrystallization temperature?
Definition
A smaller initial grain size
Term
How can you eliminate residual stresses in cold-worked metallic materials?
Definition
Stress-relief anneal the part
Term
What is the second step of annealing?
Definition
Recrystallization
Term
What does annealing NOT accomplish?
Definition
Eliminating the dimensional accuracy
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