On the existence of a friction stress for high–temperature creep
- 1 October 1979
- journal article
- other
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 40 (4) , 581-586
- https://doi.org/10.1080/01418617908234860
Abstract
Strain transients following small stress decrements during creep of high–purity poly crystalline copper at 673 K indicate that delay times of zero creep rate do not occur, except when the reduced stress level is equal to the average internal stress. Similar measurements on aluminium and a zirconium alloy have failed to detect Buch delay times. Thus, the existence of a friction stress in the creep of these materials is questioned.Keywords
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