固溶处理工艺对7003铝合金组织和性能的影响

发布时间：2018-07-17 15:24

【摘要】：通过电导率测试、力学性能测试、硬度测试、显微组织观察、SEM背散射电子分析以及XRD衍射物相分析等方法研究了固溶温度和时间对7003铝合金性能、微观组织和断口形貌的影响。结果表明:实验用7003铝合金板材的固溶温度范围很宽,在450~500℃范围内,固溶温度对7003铝合金的性能影响不大;实验合金板材的最佳固溶工艺约为480℃×50 min,在此条件下,合金的抗拉强度、屈服强度、伸长率、硬度和电导率分别为399 MPa、352 MPa、13%、126.4 HV1和38.6%IACS。X射线衍射结果表明:挤压态7003铝合金中主要有Al基体、Mg Zn2和Al85(Mn0.72Fe0.28)14Si等杂质相组成。
[Abstract]:The effects of solution temperature and time on the properties, microstructure and fracture morphology of 7003 aluminum alloy were studied by means of conductivity test, mechanical property test, hardness test, microstructure observation, SEM backscatter electron analysis and XRD diffraction phase analysis. The results show that the solution temperature of 7003 aluminum alloy sheet is very wide, and the solution temperature has little effect on the properties of 7003 aluminum alloy in the range of 450 ~ 500 鈩，

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