Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect
In this study, we investigate the influence of Sc microalloying on the microstructure of the Al5083 alloy. Trace amounts of Sc addition drastically improve the mechanical properties of the Al5083 alloy from 216 MPa to 233 MPa. Macroscopically, the addition of Sc significantly reduces the grain size...
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MDPI AG
2021-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/7/1120 |
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| author | Ji-Hoon Park Kee-Ahn Lee Sung-Jae Won Yong-Bum Kwon Kyou-Hyun Kim |
| author_facet | Ji-Hoon Park Kee-Ahn Lee Sung-Jae Won Yong-Bum Kwon Kyou-Hyun Kim |
| author_sort | Ji-Hoon Park |
| collection | DOAJ |
| description | In this study, we investigate the influence of Sc microalloying on the microstructure of the Al5083 alloy. Trace amounts of Sc addition drastically improve the mechanical properties of the Al5083 alloy from 216 MPa to 233 MPa. Macroscopically, the addition of Sc significantly reduces the grain size of Al by approximately 50%. Additionally, a microstructural investigation reveals that the Sc microalloying element induces fine Al<sub>3</sub>Sc nanoprecipitates in the Al matrix. The formation of Al<sub>3</sub>Sc nanoprecipitates results in a pinning effect on the dislocations, leading to accumulated dislocations. Compared to a Sc-free Al5083 alloy specimen, the number density of dislocations in the Sc-added Al5083 alloy significantly increases after hot rolling, enhancing the tensile properties. We reveal that the improved mechanical properties of Al5083 with Sc microalloying originate from the grain refinement and the formation of fine Al<sub>3</sub>Sc nanoprecipitates. |
| first_indexed | 2024-03-10T09:32:45Z |
| format | Article |
| id | doaj.art-c8a16204ebd64409ab803d5dd5712722 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T09:32:45Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-c8a16204ebd64409ab803d5dd57127222023-11-22T04:24:07ZengMDPI AGMetals2075-47012021-07-01117112010.3390/met11071120Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening EffectJi-Hoon Park0Kee-Ahn Lee1Sung-Jae Won2Yong-Bum Kwon3Kyou-Hyun Kim4Korea-Russia Innovation Center, Korea Institute of Industrial Technology, Incheon 21999, KoreaDepartment of Advanced Materials Engineering, In-Ha University, Incheon 22212, KoreaKorea-Russia Innovation Center, Korea Institute of Industrial Technology, Incheon 21999, KoreaKorea-Russia Innovation Center, Korea Institute of Industrial Technology, Incheon 21999, KoreaKorea-Russia Innovation Center, Korea Institute of Industrial Technology, Incheon 21999, KoreaIn this study, we investigate the influence of Sc microalloying on the microstructure of the Al5083 alloy. Trace amounts of Sc addition drastically improve the mechanical properties of the Al5083 alloy from 216 MPa to 233 MPa. Macroscopically, the addition of Sc significantly reduces the grain size of Al by approximately 50%. Additionally, a microstructural investigation reveals that the Sc microalloying element induces fine Al<sub>3</sub>Sc nanoprecipitates in the Al matrix. The formation of Al<sub>3</sub>Sc nanoprecipitates results in a pinning effect on the dislocations, leading to accumulated dislocations. Compared to a Sc-free Al5083 alloy specimen, the number density of dislocations in the Sc-added Al5083 alloy significantly increases after hot rolling, enhancing the tensile properties. We reveal that the improved mechanical properties of Al5083 with Sc microalloying originate from the grain refinement and the formation of fine Al<sub>3</sub>Sc nanoprecipitates.https://www.mdpi.com/2075-4701/11/7/1120Al 5xxxx alloyAl5083 alloymicrostructuremicroalloying |
| spellingShingle | Ji-Hoon Park Kee-Ahn Lee Sung-Jae Won Yong-Bum Kwon Kyou-Hyun Kim Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect Metals Al 5xxxx alloy Al5083 alloy microstructure microalloying |
| title | Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect |
| title_full | Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect |
| title_fullStr | Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect |
| title_full_unstemmed | Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect |
| title_short | Influence of Sc Microalloying on the Microstructure of Al5083 Alloy and Its Strengthening Effect |
| title_sort | influence of sc microalloying on the microstructure of al5083 alloy and its strengthening effect |
| topic | Al 5xxxx alloy Al5083 alloy microstructure microalloying |
| url | https://www.mdpi.com/2075-4701/11/7/1120 |
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