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 to 600 K. In non-deformed samples we observe a complex behaviour of the Snoek-relaxation peak intensity, which indicates the existence of carbon redistribution governed by the copper precipitation. In cold-worked samples, the behaviour of dislocation-related relaxation processes is explained through an increase in 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.
Details
Original language | English |
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Pages (from-to) | 495302-495302 |
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Journal | Journal of Physics D: Applied Physics |
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Volume | 44 |
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Issue number | 49 |
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DOIs | |
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Publication status | Published - Nov 2011 |
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