Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes
Grain refinement with a facile process without additional alloying is quite desired for strengthening the Al alloys. Using the melt spinning process, we obtained the ultra-fine grained foils of Al–Mg–Si–Cu alloy (AA6061), then the foils followed by hot extrusion to produce the rods for industrial ap...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421015581 |
| _version_ | 1798024714998775808 |
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| author | Shuoxun Jin Anding Wang Kang Wang Wenfang Li Bingbing Wan Tongguang Zhai |
| author_facet | Shuoxun Jin Anding Wang Kang Wang Wenfang Li Bingbing Wan Tongguang Zhai |
| author_sort | Shuoxun Jin |
| collection | DOAJ |
| description | Grain refinement with a facile process without additional alloying is quite desired for strengthening the Al alloys. Using the melt spinning process, we obtained the ultra-fine grained foils of Al–Mg–Si–Cu alloy (AA6061), then the foils followed by hot extrusion to produce the rods for industrial applications. The yield strength of the extruded melt-spun rod is 102% higher than that of the extruded rods of the alloy by a conventional direct chill casting. The electron backscatter diffraction results reveal that the average grain diameter in the extruded melt-spun sample is only 1.35 μm, indicating that the sample is an ultra-fine grained alloy. Through the Hall–Petch relationship, the finer grains contribute to a 66.9% increase in yield strength of the extruded rod. Moreover, the <111> fiber texture occupied 68% of the volume fraction after hot extrusion, contributing to 30.5% improvement of the yield strength in the extruded melt-spun sample. This study shows that the ultra-fine grained Al–Mg–Si–Cu alloy rods have excellent mechanical properties, which provides a strong potential for industrial application. |
| first_indexed | 2024-04-11T18:08:09Z |
| format | Article |
| id | doaj.art-fd68c5279f224161a08c9fd1d09d3182 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T18:08:09Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-fd68c5279f224161a08c9fd1d09d31822022-12-22T04:10:17ZengElsevierJournal of Materials Research and Technology2238-78542022-01-011617611769Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processesShuoxun Jin0Anding Wang1Kang Wang2Wenfang Li3Bingbing Wan4Tongguang Zhai5School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, China; National Engineering Research Center of Near-Net-Shape Forming Technology for Metallic Materials, South China University of Technology, Guangzhou, 510640, ChinaSchool of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, ChinaSchool of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, ChinaSchool of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, China; National Engineering Research Center of Near-Net-Shape Forming Technology for Metallic Materials, South China University of Technology, Guangzhou, 510640, China; Corresponding author.School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, ChinaSchool of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523000, China; Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USAGrain refinement with a facile process without additional alloying is quite desired for strengthening the Al alloys. Using the melt spinning process, we obtained the ultra-fine grained foils of Al–Mg–Si–Cu alloy (AA6061), then the foils followed by hot extrusion to produce the rods for industrial applications. The yield strength of the extruded melt-spun rod is 102% higher than that of the extruded rods of the alloy by a conventional direct chill casting. The electron backscatter diffraction results reveal that the average grain diameter in the extruded melt-spun sample is only 1.35 μm, indicating that the sample is an ultra-fine grained alloy. Through the Hall–Petch relationship, the finer grains contribute to a 66.9% increase in yield strength of the extruded rod. Moreover, the <111> fiber texture occupied 68% of the volume fraction after hot extrusion, contributing to 30.5% improvement of the yield strength in the extruded melt-spun sample. This study shows that the ultra-fine grained Al–Mg–Si–Cu alloy rods have excellent mechanical properties, which provides a strong potential for industrial application.http://www.sciencedirect.com/science/article/pii/S2238785421015581Grain refinementRapid solidificationTexture evolutionAl–Mg–Si–Cu alloy |
| spellingShingle | Shuoxun Jin Anding Wang Kang Wang Wenfang Li Bingbing Wan Tongguang Zhai Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes Journal of Materials Research and Technology Grain refinement Rapid solidification Texture evolution Al–Mg–Si–Cu alloy |
| title | Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes |
| title_full | Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes |
| title_fullStr | Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes |
| title_full_unstemmed | Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes |
| title_short | Significant strengthening effect in ultra-fine grained Al alloy made by fast solidification and hot extrusion processes |
| title_sort | significant strengthening effect in ultra fine grained al alloy made by fast solidification and hot extrusion processes |
| topic | Grain refinement Rapid solidification Texture evolution Al–Mg–Si–Cu alloy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421015581 |
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