Question

define hardness???????????????​

Answer 1

$\huge\bold\red{ʜᴀʀᴅɴᴇss}$

• ➡ It is defined as the resistance of a material to local plastic deformation achieved from indentation of a predetermined geometry indenter onto a flat surface of metal under a predetermined load.

Answer 2

Answer ✍️

HARDNEss

➡ It is defined as the resistance of a material to local plastic deformation achieved from indentation of a predetermined geometry indenter onto a flat surface of metal under a predetermined load.