by which a material deserve to be plastic deformed and also shaped once cold

A easy material have the right to be plastic shaped v hammering or rolling there is no fracture.

You are watching: Is brittleness a property of metal

Typical easy materials:

mild steel, gold, lead


through which a product will fracture without appreciable former plastic deformation

Brittleness is absence of ductility and also for a brittle material there is no plastic deformation. The elastic phase is complied with by immediate fracture.

Typical brittle materials:

glass, concrete, ceramics, stone, gray cast iron


through which a material have the right to be plastic deformed by elongation there is no fracture

Ductile materials can generally be plastic elongated with an ext than 15% before they fracture.

Typical ductile materials:

copper, soft steel, thermoplastics Specification that Ductility

Ductility can be mentioned as percent elongation prior to rupture as

DL = 100% (Lf - L0) / L0 (1)


DL = ductility related to elongation (%)

Lf = last length that specimen at fracture (m, mm, in...)

L0 = original length of specimen (m, mm, in...)

Alternatively ductility deserve to be mentioned as percent reduction of area as

DA = 100% (A0 - Af) / A0 (2)


DA = ductility pertained to reduction the area (%)

Af = last area of specimen in ~ fracture (m, mm, in...)

A0 = original area that specimen (m, mm, in...)

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Engineering ToolBox, (2013). Malleability, Brittlenes and Ductility. easily accessible at:,-Brittlenes-and-Ductility-d_1851.html .

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