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ME 201 - Materials Science and Engineering
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The easier the dislocation motion, the stronger the material.
Material can be strengthened by cold working.
During the recovery of a cold-worked material, there is an increase in the number of dislocations.
As grain size of metal increases, strength of the material ________
An aluminum plate is reduced from 3.5 cm to 2.1 cm thickness. Determine the % CW, and yield strength
%CW= _______, Yield Strength= _________ MPa.
A brass bar is reduced from a 2.5 cm diameter, to a 2 cm diameter. Determine the % Cold Work, and ductility.
%CW= _______, Ductility= _________ (EL%)