ductility of a work-hardened material is decreased.
Ductility is the extent to which a material can undergo plastic deformation,
that is, it is how far a material can be plastically deformed before fracture.
A cold-worked material is, in effect, a normal material that has already been
extended through part of its allowed plastic deformation. If dislocation motion
and plastic deformation have been hindered enough by dislocation ac****ulation,
and stretching of electronic bonds and elastic deformation have reached their
limit, a third mode of deformation occurs: fracture.''
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