The apparent activation energy for serrated yielding
- 1 January 1969
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 19 (157), 209-211
- https://doi.org/10.1080/14786436908217776
Abstract
The activation energy for serrated yielding has previously been found to vary with grain size. It is suggested that this apparent variation may be explained by including the influence of grain size on dislocation density in the theory proposed by Cottrell (1953) and subsequently developed by various authors. The most reliable values of the activation energy are those derived from experiments in which the critical strains involved are small (0·1).Keywords
This publication has 4 references indexed in Scilit:
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- Dislocation multiplication, vacancy accumulation, and the onset of jerky flow during forward and reverse 1 strain in Cu-3.2 at. % SnPhilosophical Magazine, 1967
- Repeated yielding in tin bronze alloysPhilosophical Magazine, 1963
- LXXXVI. A note on the Portevin-Le Chatelier effectJournal of Computers in Education, 1953