Difference between hardness and toughness

Question

Accepted Answer

Hardness is resistance to indentation while toughness is resistance to fracture.

Hardness is a measure of how easily a material can be scratched or dented.
Toughness is a measure of how much energy a material can absorb before fracturing.
Hardness is often measured using the Mohs scale, while toughness is measured using impact tests.
For example, diamond is very hard but not very tough, while rubber is not very hard but very tough.

Accepted Answer

Hardness and toughness  are two distinct but interconnected  property's  of a material 
Hardness is the resistance to deformation indentation or scratching  while  toughness is the materials  ability to absorb  energy and plastically  deform  without fracturing

Accepted Answer

Hardness: A material's ability to withstand friction, essentially abrasion resistance,is known as hardness.

Toughness: How well the material can resist fracturing when force applied. Tuoghness requires strength as well as ductility, which allows a material to deform before fracturing.

Accepted Answer

hardness- resistance to penetration /intentation.

toughness- resistance to fracture under impact/ sudden loading.

Difference between hardness and toughness

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