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Published in:
2016 | OriginalPaper | Chapter
High-Temperature Processes Occurring During Homogenization of AA6082 Aluminum Alloy
Authors : Miroslav Cieslar, Jan Bajer, Michal Hájek, Vladivoj Očenášek
Published in: Light Metals 2014
Publisher: Springer International Publishing
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Homogenization conditions of the 6082-type aluminum alloy were tested by means of electrical resistivity measurements and in-situ heating SEM experiments. It was shown that close to 540 °C a partial local melting of dendrite cell boundaries occurs accompanied by a significant Mn, Mg and Si solid solution enrichment. The process is significantly accelerated and the surface damage due to the local melting is more pronounced when the temperature is risen to 560 °C. At higher temperatures a full surface melting and alloy degradation occurs.