What is malleability ?
Answers
Answer:
Malleability is a substance's ability to deform under pressure (compressive stress). If malleable, a material may be flattened into thin sheets by hammering or rolling. Malleable materials can be flattened into metal leaf. ... Malleability is a physical property of matter, usually metals.
Explanation:
Malleability and ductility are related. A malleable material is one in which a thin sheet can be easily formed by hammering or rolling. In other words, the material has the ability to deform under compressive stress.
Malleability: Metal hammered into thin sheets, shows hammer hitting gold to make thin circle
A malleable material is one in which a thin sheet can be easily formed by hammering. Gold is the most malleable metal.
Credit: Buzzle
In contrast, ductility is the ability of a solid material to deform under tensile stress. Practically, a ductile material is a material that can easily be stretched into a wire when pulled as shown in the figure below. Recall pulling is applying tensile stress.
Ductility text showing the starting point, ductility, (how far it can stretch) and the end point, very tapered in the middle.
Ductility test.
Credit: Civil Engineering(link is external)
If we pull on a rod of material, some of the possible profiles of the rods at fracture are shown in the figure below.
Breaking profiles: A) Snap w/ jagged edges. B) some contour and pulling then snap, C)pull all the way into smooth contours and points