Microstructural changes during ageing of Cu-2.5 wt% Ti |
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| Authors: | P E Donovan A W Thompson |
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| Affiliation: | (1) Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, UK;(2) Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA, USA |
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| Abstract: | Microstructural changes in Cu-2.5wt % Ti during ageing at 573 and 773 K have been studied by transmission electron microscopy. Ageing times ranged from 60 sec to 200 h. Ordering of the  precipitates was observed after very short ageing treatments at 773 K, and coarsening according tot
1/3 was also observed from very early times. The particles were observed to become increasingly aligned into rod-like groups along  10 0 as ageing progressed. These results permit a new interpretation of the strengthening mechanisms in this alloy. |
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