A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates
The performance of large-size structural components with varied wall thickness is mainly determined by the quench sensitivity, while there was a blank of the studies on the quench sensitivity of cast Al–Li alloys. In this study, the precipitation behavior of sand-cast Al–2Li–2Cu-0.5Mg-0.15Sc-0.15Zr-...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422017872 |
| _version_ | 1828090123034558464 |
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| author | Yixiao Wang Guohua Wu Liang Zhang Xin Tong Liangbin Li Xunman Xiong Xiaolong Zhang Cunlong Wang |
| author_facet | Yixiao Wang Guohua Wu Liang Zhang Xin Tong Liangbin Li Xunman Xiong Xiaolong Zhang Cunlong Wang |
| author_sort | Yixiao Wang |
| collection | DOAJ |
| description | The performance of large-size structural components with varied wall thickness is mainly determined by the quench sensitivity, while there was a blank of the studies on the quench sensitivity of cast Al–Li alloys. In this study, the precipitation behavior of sand-cast Al–2Li–2Cu-0.5Mg-0.15Sc-0.15Zr-0.05Ti alloy subjected to different quenching conditions in room temperature water, boiling water and air was compared. The effect of the quenching rates on the formation mechanisms of δ΄ (Al3Li) and T1 (Al2CuLi) precipitates was discussed. It was found that a rapid quenching rate facilitated the precipitation of T1 phases and the refinement of δ′ phases, which contributes to the improvement of the mechanical properties. During the subsequent ageing, the strength and ductility were enhanced with the quenching rate increasing, but the strength did not vary by more than 15%, indicating that the sand-cast Al–Li–Cu alloy owns a lower quench sensitivity. This work is expected to enlighten the understanding of the evolution mechanisms of precipitates during quenching and provide a reference for the heat treatment of complex structural components for cast Al–Li alloys. |
| first_indexed | 2024-04-11T05:52:14Z |
| format | Article |
| id | doaj.art-5c770d23b1ed4f8ba8f3d301c85990d7 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T05:52:14Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5c770d23b1ed4f8ba8f3d301c85990d72022-12-22T04:42:02ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012148934907A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching ratesYixiao Wang0Guohua Wu1Liang Zhang2Xin Tong3Liangbin Li4Xunman Xiong5Xiaolong Zhang6Cunlong Wang7National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China; Corresponding author.National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China; Corresponding author.National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of ChinaJiangxi Ganfeng Lithium Co., Ltd, Xinyu, Jiangxi, 338004, ChinaJiangxi Ganfeng Lithium Co., Ltd, Xinyu, Jiangxi, 338004, ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of ChinaSchool of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, ChinaThe performance of large-size structural components with varied wall thickness is mainly determined by the quench sensitivity, while there was a blank of the studies on the quench sensitivity of cast Al–Li alloys. In this study, the precipitation behavior of sand-cast Al–2Li–2Cu-0.5Mg-0.15Sc-0.15Zr-0.05Ti alloy subjected to different quenching conditions in room temperature water, boiling water and air was compared. The effect of the quenching rates on the formation mechanisms of δ΄ (Al3Li) and T1 (Al2CuLi) precipitates was discussed. It was found that a rapid quenching rate facilitated the precipitation of T1 phases and the refinement of δ′ phases, which contributes to the improvement of the mechanical properties. During the subsequent ageing, the strength and ductility were enhanced with the quenching rate increasing, but the strength did not vary by more than 15%, indicating that the sand-cast Al–Li–Cu alloy owns a lower quench sensitivity. This work is expected to enlighten the understanding of the evolution mechanisms of precipitates during quenching and provide a reference for the heat treatment of complex structural components for cast Al–Li alloys.http://www.sciencedirect.com/science/article/pii/S2238785422017872Sand-cast Al–Li alloyMechanical propertiesQuenching rateAgeing precipitation |
| spellingShingle | Yixiao Wang Guohua Wu Liang Zhang Xin Tong Liangbin Li Xunman Xiong Xiaolong Zhang Cunlong Wang A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates Journal of Materials Research and Technology Sand-cast Al–Li alloy Mechanical properties Quenching rate Ageing precipitation |
| title | A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates |
| title_full | A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates |
| title_fullStr | A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates |
| title_full_unstemmed | A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates |
| title_short | A comparative study on precipitation behavior of a sand-cast Al–Li–Cu alloy with the different quenching rates |
| title_sort | comparative study on precipitation behavior of a sand cast al li cu alloy with the different quenching rates |
| topic | Sand-cast Al–Li alloy Mechanical properties Quenching rate Ageing precipitation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422017872 |
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