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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >The dependence of microstructure, texture evolution and mechanical properties of Al-Mg-Si-Cu alloy sheet on final cold rolling deformation
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The dependence of microstructure, texture evolution and mechanical properties of Al-Mg-Si-Cu alloy sheet on final cold rolling deformation

机译：Al-Mg-Si-Cu合金薄板的组织，织构演变和力学性能对最终冷轧变形的依赖性

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摘要

Dependence of microstructure, texture evolution and mechanical properties of Al-Mg-Si-Cu alloy sheet on final cold rolling deformation was studied by means of tensile test, microstructure and texture characterization in this study. The results reveal that the different final cold rolling deformations have a great influence on the evolution of microstructure and texture, and final mechanical properties. Compared with the T4P treated (pre-aged at 80 degrees C for 12 h plus naturally aged for 14 days) alloy sheet A with a high final cold rolling deformation (75%), the T4P treated alloy sheet B with a lower final cold rolling deformation (50%) possesses almost identical strength and elongation, but a higher average r and a lower Delta r value. Compared with the annealed alloy sheet A, the density of finer particles in the annealed alloy sheet B is higher, which further can affect the evolution of microstructure and texture. After solution treatment, the two alloy sheets are comprised of equiaxed grains with somewhat different grain sizes, and the different textures, Goss {110}< 001> and Cube {100}< 001> orientations in the sheet A, while only Cube orientation with a low intensity in the sheet B. The relationship between texture and r value in the two alloy sheets was also analyzed by Visco-plastic self-consistent (VPSC) model. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过拉伸试验，组织和组织表征，研究了Al-Mg-Si-Cu合金薄板的组织，组织演变和力学性能对最终冷轧变形的影响。结果表明，不同的最终冷轧变形对组织和组织的演变以及最终的力学性能有很大的影响。与经过T4P处理（在80℃时效时效12 h再自然时效14天）的最终冷轧变形量高（75％）的合金薄板A相比，经过T4P处理的合金薄板B的最终冷轧量更低变形（50％）具有几乎相同的强度和伸长率，但平均r和Delta r值较低。与退火合金板A相比，退火合金板B中较细的颗粒的密度更高，这可以进一步影响组织和组织的演变。经过固溶处理后，两块合金薄板由等轴晶粒组成，晶粒尺寸略有不同，并且在薄板A中具有不同的组织，戈斯{110} <001>和立方体{100} <001>取向，而只有立方体取向具有薄板B中的强度较低。​​还通过粘塑性自洽（VPSC）模型分析了两个合金板中织构与r值之间的关系。 （C）2015 Elsevier B.V.保留所有权利。

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