Transients in steady-state plastic deformation produced by changes of strain rate
- 1 August 1977
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 36 (2) , 255-263
- https://doi.org/10.1080/14786437708244933
Abstract
Transient changes in load following a decrease in strain rate have been measured with a fast recording system during tensile tests of copper crystals. Good agreement between the predicted and measured shapes of the transients have been obtained simply by taking into account the elasticity of the testing machine. A method of extrapolation to obtain the resulting change in flow stress is described. It is suggested that the transients are present because the conditions prevailing on secondary glide systems are characteristic of creep, and that the transients essentially reflect changes in creep rate on secondary systems.Keywords
This publication has 11 references indexed in Scilit:
- Strain rate sensitivity of flow stress and of mobile dislocation densityPhysica Status Solidi (a), 1971
- Surface and size effects in unloading yield pointPhilosophical Magazine, 1970
- Die Bestimmung de aaktivierungsvolumens durch Wechsel der dehngeschwindigkeit, insbesondere an silbereinkristallenMaterials Science and Engineering, 1967
- Kriechexperimente an hochreinen Kupfer-EinkristallenPhysica Status Solidi (b), 1966
- Unloading effects in crystals—I the unloading yield point effectActa Metallurgica, 1961
- Das magnetische Einm ndungsgesetz bei plastisch verformten Nickel- und Nickel-Kobalt-EinkristallenThe European Physical Journal A, 1959
- Thermally activated glide in face-centred cubic metals and its application to the theory of strain hardeningPhilosophical Magazine, 1959
- The temperature dependence of flow stress in copper single crystalsPhilosophical Magazine, 1958
- A yield phenomenon in face-centered cubic single crystalsActa Metallurgica, 1957
- Work-hardening and work-softening of face-centred cubic metal crystalsPhilosophical Magazine, 1957