Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy
To improve the hot working stability of Al–0.5Mg–0.4Si–0.1Cu alloy, isothermal compression tests were performed at the temperature range of 350–500 °C and strain rate of 0.001–10 s−1. Strain-compensated Arrhenius constitutive equation containing Zener–Hollomon parameters was established to describe...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422010663 |
| _version_ | 1811281312463454208 |
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| author | Hui Yi Jian Ding Changan Ni Jiahang Dai Ying Tang Xueguang Chen Kaihong Song Xingchuan Xia |
| author_facet | Hui Yi Jian Ding Changan Ni Jiahang Dai Ying Tang Xueguang Chen Kaihong Song Xingchuan Xia |
| author_sort | Hui Yi |
| collection | DOAJ |
| description | To improve the hot working stability of Al–0.5Mg–0.4Si–0.1Cu alloy, isothermal compression tests were performed at the temperature range of 350–500 °C and strain rate of 0.001–10 s−1. Strain-compensated Arrhenius constitutive equation containing Zener–Hollomon parameters was established to describe the hot deformation behavior. Its accuracy was evaluated within the whole strain range and the established constitutive equation can well predict the flow behavior. In addition, intrinsic machinability was further analyzed by constructing processing maps under different true strains based on dynamic material models. Microstructures are in fine agreement with processing maps and flow instability occurred mainly in high strain rate regions due to the presence of adiabatic shear bands and flow localization. Dynamic softening mechanism of the alloy mainly stems from dynamic recovery and partial dynamic recrystallization. Based on processing maps and microstructure observations, optimal process parameters of alloy were obtained, which are beneficial to optimize its hot working parameters. |
| first_indexed | 2024-04-13T01:31:29Z |
| format | Article |
| id | doaj.art-d4f4fb6267ba4a73a523ccd9b26ff554 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-13T01:31:29Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d4f4fb6267ba4a73a523ccd9b26ff5542022-12-22T03:08:30ZengElsevierJournal of Materials Research and Technology2238-78542022-07-011948904904Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloyHui Yi0Jian Ding1Changan Ni2Jiahang Dai3Ying Tang4Xueguang Chen5Kaihong Song6Xingchuan Xia7School of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaCorresponding author.; School of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaSchool of Material Science and Engineering, Hebei University of Technology, Tianjin, 300130, PR ChinaTo improve the hot working stability of Al–0.5Mg–0.4Si–0.1Cu alloy, isothermal compression tests were performed at the temperature range of 350–500 °C and strain rate of 0.001–10 s−1. Strain-compensated Arrhenius constitutive equation containing Zener–Hollomon parameters was established to describe the hot deformation behavior. Its accuracy was evaluated within the whole strain range and the established constitutive equation can well predict the flow behavior. In addition, intrinsic machinability was further analyzed by constructing processing maps under different true strains based on dynamic material models. Microstructures are in fine agreement with processing maps and flow instability occurred mainly in high strain rate regions due to the presence of adiabatic shear bands and flow localization. Dynamic softening mechanism of the alloy mainly stems from dynamic recovery and partial dynamic recrystallization. Based on processing maps and microstructure observations, optimal process parameters of alloy were obtained, which are beneficial to optimize its hot working parameters.http://www.sciencedirect.com/science/article/pii/S2238785422010663Al–0.5Mg–0.4Si–0.1Cu alloyHot deformationConstitutive equationProcessing mapsFlow instability |
| spellingShingle | Hui Yi Jian Ding Changan Ni Jiahang Dai Ying Tang Xueguang Chen Kaihong Song Xingchuan Xia Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy Journal of Materials Research and Technology Al–0.5Mg–0.4Si–0.1Cu alloy Hot deformation Constitutive equation Processing maps Flow instability |
| title | Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy |
| title_full | Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy |
| title_fullStr | Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy |
| title_full_unstemmed | Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy |
| title_short | Hot compression deformation behavior and processing maps of Al–0.5Mg–0.4Si–0.1Cu alloy |
| title_sort | hot compression deformation behavior and processing maps of al 0 5mg 0 4si 0 1cu alloy |
| topic | Al–0.5Mg–0.4Si–0.1Cu alloy Hot deformation Constitutive equation Processing maps Flow instability |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422010663 |
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