Properties and Structural Changes of Al-3Cu-2Li Alloy after Thermal Treatment |
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| Authors: | P Kl? T Pelachová M Florian |
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| Affiliation: | (1) Institute of Materials and Machine Mechanics of, the Slovak Academy of Sciences, Ra ianska 75, P.O. Box 95, 830 08 Bratislava 38, Slovak Republic |
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| Abstract: | A quantitative evaluation of microstructure and some mechanical properties of Al-3Cu-2Li (wt.%) alloy submitted to solution annealing at 503°C with succeeded age-hardening at three selected temperatures 163°C, 180°C and 190°C for 17 hours were investigated. With increasing the temperature of artificial ageing increases the strength of the alloy and reaches the maximum at 190°C, what is connected with decreasing of the deformation characteristics. Besides precipitates of Al2Cu and Al2CuLi the Cu3Al particles were found. |
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| Keywords: | advanced performance materials aluminium alloys light-weight materials precipitation hardening of aluminium alloys thermal treatment of alloys |
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