Ductile fracture in metals
- 1 August 1959
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 4 (44) , 964-969
- https://doi.org/10.1080/14786435908238272
Abstract
Cup-and-cone fracture in single-phase ductile metals appears to originate at holes formed by drawing away of material from non-metallic inclusions, as suggested by Tipper. In copper, the holes expand under the triaxial stresses in the neck and coalesce in a macroscopic fissure; in α iron fine cracks are formed by the stress concentrated at the holes. In coarsegrained material shear cracks are formed on the surface of the neck. Pure polycrystalline aluminium separates at the neck of a tensile specimen by slipping-off along a plane of shear. This is thought to be the usual mode of failure in materials in which work-hardening has been exhausted.Keywords
This publication has 3 references indexed in Scilit:
- XVI. The ductile fracture of polycrystalline α-ironPhilosophical Magazine, 1956
- The Necking of a Tension Specimen in Plane Plastic FlowJournal of Applied Physics, 1954
- Fracture and strength of solidsReports on Progress in Physics, 1949