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High-temperature isothermal internal friction of copper and copper-aluminium solid solutions between 10-4 and 10 Hz
- Source :
- Philosophical Magazine A; February 1981, Vol. 43 Issue: 2 p363-375, 13p
- Publication Year :
- 1981
-
Abstract
- Copper and copper-aluminium solutions have been studied by means of high-temperature isothermal internal friction experiments performed between 10-4 and 10 Hz, in the temperature range 370-680°C. An enlarged internal friction peak superimposed on an exponential low-frequency background has been observed in each case. Such damping peaks are attributed to dislocation motion inside the grains. Activation energies are deduced from the peak position shifts as a function of the temperature. Possible rate-limiting mechanisms are suggested and discussed.
Details
- Language :
- English
- ISSN :
- 01418610 and 14606992
- Volume :
- 43
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- Philosophical Magazine A
- Publication Type :
- Periodical
- Accession number :
- ejs11434389
- Full Text :
- https://doi.org/10.1080/01418618108239415