The effects of the processing variables on the microstructure and tensile properties of naturally aged AA6022 wrought alloys |
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| Authors: | Chin‐Hui Shen Bin‐Lung Ou |
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| Affiliation: | 1. Section of Mechanical Engineering , National Army Senior High School , Chungli, Taiwan 320, R.O.C. Phone: 886–3–4371864 Fax: 886–3–4371864 E-mail: s0343007@cc.ncu.edu.tw);2. Department of Mechanical Engineering , National Central University , Chungli, Taiwan 320, R.O.C. |
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| Abstract: | Abstract 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. |
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| Keywords: | AA6022 alloy natural aging dissolution tensile properties |
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