Grain structure control of flat extruded AA6082 alloy

被引：0
|
作者：
Furu, Trond [1 ]
Vatne, Hans Erik [1 ]
机构：
[1] R and D Materials Technology, Hydro Aluminium a.s., PO Box 219, NO-6600 Sunndalsøra, Norway
来源：
Materials Science Forum | 2000年 / 331卷
关键词：
Annealing - Deformation - Grain boundaries - Grain size and shape - Metal extrusion - Metallographic microstructure - Quenching - Recrystallization (metallurgy) - Thermal effects;
D O I：
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摘要：
In the present work a commercial AA6082 alloy has been investigated. The alloy was homogenised to different dispersoid levels using different temperature cycles and extruded to flat profiles. By applying a special quenching unit at the extrusion press, the recrystallisation process was completely inhibited. The as-deformed materials were annealed in a salt bath to follow the recrystallisation process in rather great detail at various through-thickness positions in the extrusion profiles. The recrystallisation kinetics and grain size were modelled based upon input data such as deformation structure, dispersoid density and verified against the experimental results.
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