The relation between surface and interior structures in low-amplitude fatigue
- 1 January 1968
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 17 (145) , 199-203
- https://doi.org/10.1080/14786436808218194
Abstract
A remarkably reversible slip-unslip process has been observed on low strain amplitude fatigue hardened copper single crystals. Slip lines formed on an electropolished surface in one half cycle almost vanish on the subsequentreverse half-cycle, then reappear on the next forward stroke. This process has been observed at least 300 μ below the original surface shortly after saturation. The dislocation structure was composed of dense dipole-monopole mats elongated on the primary slip plane and it is suggested that the reversibility results from interactions between these mats and their surrounding elastic matrix.Keywords
This publication has 9 references indexed in Scilit:
- Fatigue Hardening in Face-centred Cubic MetalsNature, 1966
- Dislocations and persistent slip bands in fatigued copperPhilosophical Magazine, 1966
- Substructure of Persistent Slip Bands in Cyclically Deformed CopperPhysica Status Solidi (b), 1966
- A debris mechanism of cyclic strain hardening for F.C.C. metalsPhilosophical Magazine, 1965
- Slip line and dislocation structures in fatigued copperPhilosophical Magazine, 1965
- The magnitude of the strain in a localized region of plastic deformationPhilosophical Magazine, 1964
- Fatigue hardening in alloys of low stacking-fault energyActa Metallurgica, 1963
- The hardening of copper single crystals by fatigueProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1959
- Annealed metals under alternating plastic strainProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957