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Abstract：
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In order to study the influences of heating temperature on the mechanical properties and microstructure for annealed 2219 aluminum alloy sheet, the uniaxial tensile test of annealed 2219 aluminum alloy sheet was carried out in the temperature range of 25-300 ℃. The results show that the strength of annealed 2219 aluminum alloy sheet decreases with the increasing of heating temperature, and the elongation increases significantly with the increasing of heating temperature from 31.50% at room temperature to 59.75% at 300 ℃, so the plasticity is significantly improved. However, after annealed 2219 aluminum alloy sheet is heated to a certain temperature and then cooled to the room temperature, and then subjected to solution aging heat treatment, the strength of material does not change basically, and the elongation decreases with the increasing of heating temperature from 19.70% at room temperature to 15.04% at 300 ℃. At the same time, there is no significant difference in microstructure, indicating that heating within a certain temperature range has no effect on the final mechanical properties of 2219 aluminum alloy sheet.
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Funds：
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AuthorIntro：
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张下陆（1985-），男，硕士，工程师，E-mail： zxl613@126.com
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Reference：
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