Question

#What is plastic deformation

#What is ductile material

#What is brittle matarial

Answer 1

1)Plastic deformation is a process in which permanent deformation is caused by a sufficient load. It produces a permanent change in the shape or size of a solid body without fracture, resulting from the application of sustained stress beyond the elastic limit.

Plastic deformation can be applied in the creation of a variety of items constructed with metal or plastic, and can be conducted under controlled circumstances, or may occur unintentionally.

Plastic deformation is also known as plasticity.

2)Ductility is a physical property of a materialassociated with the ability to be hammered thin or stretched into wire without breaking. A ductilesubstance can be drawn into a wire. Examples: Most metals are good examples of ductile materials, including gold, silver, copper, erbium, terbium, and samarium.

3)A material is brittle if, when subjected to stress, it breaks without significant deformation (strain). Brittle materials absorb relatively little energy prior to fracture, even those of high strength. Breaking is often accompanied by a snapping sound.
Alloys such as medium and high carbon steel, cast iron and tool steel are brittle.