The effects of the processing variables on the microstructure and tensile properties of naturally aged AA6022 wrought alloys

The 6xxx series (Al-Mg-Si) alloys have properties of medium to high strength, excellent formability, good corrosion resistance, and weldability. In the present paper, we discuss the tensile properties of T4 heat-treated AA6022 alloys produced by different fabrication processes, including differences...

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Bibliographic Details
Published in:Journal of the Chinese Institute of Engineers 2005-03, Vol.28 (2), p.365-370
Main Authors: Shen, Chin-Hui, Ou, Bin-Lung
Format: Article
Language:English
Subjects:
AA6022 alloy
dissolution
natural aging
tensile properties
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Summary:The 6xxx series (Al-Mg-Si) alloys have properties of medium to high strength, excellent formability, good corrosion resistance, and weldability. In the present paper, we discuss the tensile properties of T4 heat-treated AA6022 alloys produced by different fabrication processes, including differences in the homogenization temperature, the hot rolling temperature, the cold rolling reduction ratio, and the solid solution temperature. The analysis was done by differential scanning calorimetry, tensile strength testing, by measuring the electrical resistivity, and optical microscopy. The results indicate that the yield strength and the ultimate tensile strength of naturally aged AA6022 alloys increases with increases in the homogenization treatment temperature, hot rolling temperature, cold rolling ratio and solution treatment temperature.
ISSN:0253-3839
2158-7299
DOI:10.1080/02533839.2005.9671002