Correct Answer - Option 3 : Malleability
Explanation:
Malleability
Malleability is the property by virtue of which a material may be hammered or rolled into thin sheets without rupture. This property generally increases with the increase of temperature.
Malleability is the ability of a metal to exhibit large deformation or plastic response when being subjected to a compressive force.
Lead, soft steel, wrought iron, copper, and aluminum are some materials in order of diminishing malleability.
A material that can be beaten into thin plates is said to possess the property of malleability.
Ductility
Ductility is the property of the material that enables it to be drawn out or elongated to an appreciable extent before rupture occurs.
The percentage elongation or percentage reduction in the area before rupture of a test specimen is the measure of ductility. Normally if the percentage elongation exceeds 15% the material is ductile and if it is less than 5% the material is brittle.
Lead, copper, aluminium, mild steel are typical ductile materials.
Hardness
Hardness is a measure of a metal's ability to withstand scratching, wear, and abrasion, indentation by harder bodies.
Resilience
- It is defined as the capacity of a strained body for doing work on the removal of the straining force.
- This property is essential for machine components which are required to withstand impact loads.
