Ductility is especially important in metalworking, as materials that crack, break or shatter under stress cannot be manipulated using metal-forming processes such as hammering, rolling, drawing or extruding. … See more

Metals can undergo two different types of fractures: brittle fracture or ductile fracture. Failure propagation occurs faster in brittle materials due to the ability for ductile materials to undergo plastic deformation. Thus, ductile materials are able to sustain more stress due to … See more

• Kalpakjian, Serope, 1928- (1984). Manufacturing processes for engineering materials. Reading, Mass.: Addison-Wesley. p. 30. See more

Basic definitions
The quantities commonly used to define ductility in a tension test are relative elongation (in percent, sometimes denoted as $${\displaystyle \varepsilon _{f}}$$) and reduction of area (sometimes denoted as $${\displaystyle q}$$ See more

• Deformation
• Work hardening, which improves ductility in uniaxial tension by delaying the onset of instability
• Strength of materials See more

• Ductility definition at engineersedge.com
• DoITPoMS Teaching and Learning Package- "The Ductile-Brittle Transition See more