Does ductility increase with hardness?

However, hardness can be measured much more readily than can tensile strength, there is a very close relationship between hardness and tensile strength, and between hardness and ductility. Usually, the harder the steel, the higher its tensile strength, and the lower its ductility.

How does work hardening affect ductility and plasticity?

In principle, ductility is largely governed by strain hardening rate, which is in turn significantly affected by microstructure, whereas plasticity is primarily controlled by crystal structure or the number of available slip systems to accommodate plastic deformation.