Numerical Simulation on Dynamic Recrystallization of the Thermal Deformation for 6061 Aluminum Alloy

被引：0

作者：

Zhang, Wei ^{[1
]}

You, Bo ^{[2
]}

Ye, Kun ^{[3
]}

机构：

[1] RongCheng School, Harbin University of Science and Technology, Weihai

[2] School of Automation, Harbin University of Science and Technology, Harbin

[3] School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin

来源：

Journal of Engineering Science and Technology Review | 2024年 / 17卷 / 05期

关键词：

6061 aluminum alloy; Dynamic recrystallization; Numerical simulation; Thermal deformation;

D O I：

10.25103/jestr.175.24

中图分类号：

学科分类号：

摘要：

6061 aluminum alloy is characterized by good comprehensive using properties and thermal processing performance. Traditional numerical simulation of 6061 aluminum alloy's thermal deformation is mostly limited to macroscopic deformation degree, stress-strain field, and deformation temperature field, which hinders accurately analyzing such microscopic phenomena as grain morphology change and dynamic recrystallization (DRX), thus affecting the precise quality control of the final parts. In order to simulate the dynamic recrystallization behavior during thermal deformation effectively, the hot compression experimental data were analyzed to establish the constitutive equation of flow stress and the critical equation of DRX. Then, the thermal deformation microstructure of 6061 aluminum alloy was numerically simulated based on Microstructure module of DEFRORM software, and the influencing laws of deformation amount, strain rate, and deformation temperature on the dynamic recrystallization were examined, followed by a comparative analysis with the deformation force, electron backscatter diffraction(EBSD)-based grain morphology, and transmission electron microscope (TEM)-based microstructure acquired in the hot compression experiment. Finally, the accuracy of the established models was verified. Results reveal that, as the deformation amount increased, the average grain size decreased; as the strain rate increased at a certain temperature, the size of the grains formed by dynamic recrystallization decreased, and the DRX volume fraction declined; as the temperature rose at a specific strain rate, the DRX volume fraction increased and the average grain size decreased. This study provides an important basis for optimizing the thermal deformation for 6061 aluminum alloy and regulating its structural performance. © (2024), (International Hellenic University - School of Science). All rights reserved.

引用

页码：191 / 198

页数：7

共 21 条

[1]

Zhao P. F., Ren G. S., Shen Z., Xu C. G., Influence of hot compressive deformation conditions of 6061 aluminum alloy on flow stress and research on its constitutive equation, J. Plast. Eng, 14, 6, pp. 130-133, (2007)

[2]

Mohseni S. M., Phillion A. B., Maijer D. M., Modelling the constitutive behaviour of aluminium alloy B206 in the as-cast and artificially aged states, Mater. Sci. Eng. A, 649, pp. 382-389, (2016)

[3]

Chen G. H., Chen L., Zhao G. Q., Zhang C. S., Cui W. C., Microstructure analysis of an Al-Zn-Mg alloy during porthole die extrusion based on modeling of constitutive equation and dynamic Recrystallization, J. Alloy. Compd, 710, 7, pp. 80-91, (2017)

[4]

Zhao H. X., Et al., Abnormal grain growth behavior and mechanism of 6005A aluminum alloy extrusion profile, J. Mater. Sci. Technol, 157, pp. 42-59, (2023)

[5]

Kalsar R., Et al., Material flow behavior and microstructural refinement of AA6061 alloy during friction extrusion, Mater. Charact, 208, pp. 130-133, (2024)

[6]

Wang H. L., Liang W. K., Wang Q. T., Lin G. L., Study on thermal deformation behavior and thermal processing map of aluminum alloy 6061, J. Fujian Univ. Technol, 20, 1, pp. 35-41, (2022)

[7]

Jing F. W., Wu X. Y., Duan X. G., Qiu P., Jiang H. T., Hot deformation behavior and hot processing map of AA6014 aluminum alloy, J. Plast. Eng, 28, 9, pp. 144-153, (2007)

[8]

Chu Z. J., Li B., Wang W. H., Du Y., Sun Y., Hot deformation behavior and dynamic recrystallization of 6061 aluminum alloy, Rare Met. Mater. Eng, 50, 7, pp. 2502-2510, (2021)

[9]

Hong H. Y., Du X. Y., Yan Z. G., Study on hot deformation behavior and hot processing map of 6063-T5 aluminum alloy, J. Light Ind, 36, 4, pp. 86-96, (2021)

[10]

Ezatpour H. R., Sabzevar M. H., Sajjadi S. A., Huang Y., Investigation of work softening mechanisms and texture in a hot deformed 6061 aluminum alloy at high temperature, Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process, 606, pp. 240-247, (2014)

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