Effects of the Copper Addition on the Precipitation of Al-Mg-Si Alloys

Li Li Yang; Man Jin; Chao Feng Xia

doi:10.4028/www.scientific.net/AMR.189-193.4325

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Effects of the Copper Addition on the...

Effects of the Copper Addition on the Precipitation of Al-Mg-Si Alloys

Abstract:

The effect of the copper additions on the heating process and the microstructure of 6082Al-Mg-Si alloys was investigated. The results show that there are four exothermic peaks from 50°C to 450°C in the Al-Mg-Si-0.6%Cu alloys, and the center temperature of every peak is lower than the temperature in the Al-Mg-Si alloys. Based on the observation of transmission electron microscope and three-dimensional atom probe, it is found that the copper reduce the precipitated time and the precipitated temperature of the precipitates. The number of the precipitates in the Al-Mg-Si-0.6%Cu alloys increased.

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Periodical:

Advanced Materials Research (Volumes 189-193)

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4325-4329

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.4325

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Online since:

February 2011

Authors:

Li Li Yang, Man Jin, Chao Feng Xia

Keywords:

3DAP, 6082 Aluminum Alloy, Differential Scanning Calorimetry (DSC), TEM

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