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Internal friction study of dislocation dynamics in thermally aged Fe-1%Cu-C alloys | | Boris Minov
; Luc Dupre
; Milan J. Konstantinovic
; | | Date: |
31 Aug 2010 | | Abstract: | The effect of copper precipitation and the role of carbon in the dislocation
dynamics of thermally aged Fe-1%Cu-C alloys are studied by measuring the
internal friction coefficient of non-deformed and cold-worked samples in the
temperature range from 100 K to 600 K. In non-deformed samples we observe a
complex behavior of the Snoek-relaxation peak intensity, which indicates the
existence of carbon redistribution governed by the copper precipitation. In
cold-worked samples, the behavior of dislocation-related relaxation processes
is explained through an increase of hardening due to copper precipitation at
early precipitation stages, and through the carbon redistribution which seems
to play a major role in the alloy softening at later precipitation stages. | | Source: | arXiv, 1008.5262 | | Services: | Forum | Review | PDF | Favorites | |
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