Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling
The influence of normal rolling and cross-rolling on the microstructure, mechanical properties, and anisotropy of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr alloy was investigated. With an increase in the rolling reduction amount, both the strength and plasticity of the alloy are enhanced. Among them, the alloy i...
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MDPI AG
2023-09-01
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| Online Access: | https://www.mdpi.com/2075-4701/13/9/1564 |
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| author | Zhikun Ma Tao Zhong Dongpeng Sun Bingyu Qian Nodir Turakhodjaev Sergey Betsofen Ruizhi Wu |
| author_facet | Zhikun Ma Tao Zhong Dongpeng Sun Bingyu Qian Nodir Turakhodjaev Sergey Betsofen Ruizhi Wu |
| author_sort | Zhikun Ma |
| collection | DOAJ |
| description | The influence of normal rolling and cross-rolling on the microstructure, mechanical properties, and anisotropy of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr alloy was investigated. With an increase in the rolling reduction amount, both the strength and plasticity of the alloy are enhanced. Among them, the alloy in the normal rolling state with a deformation amount of 90% exhibits the best properties, with a tensile strength of 362 MPa and an elongation of 19.1% along the rolling direction. During the rolling process, the intergranular Cu-containing phase in the alloy is continuously broken and dissolved, leading to a decrease in both size and quantity, turning from continuous distribution along grain boundaries to a granular distribution. Moreover, a large quantity of the Al<sub>3</sub>Li phase and Al<sub>3</sub>(Er, Zr, Li) core–shell composite phase are precipitated in the alloy. Recrystallization occurs mainly through the particle stimulated nucleation (PSN) mechanism. Cross-rolling eliminates the brass-type texture <111> produced by normal rolling and enhances the brass R-type texture {111}<112>. The index of plane anisotropy (IPA) of the strength decreases from 10.1% for normal rolling to 5.5% for cross-rolling, and the IPA of elongation decreases from 12.8% to 3.3%. Cross-rolling provides an effective method to reduce the anisotropy of Al-Li alloys. |
| first_indexed | 2024-03-10T22:27:55Z |
| format | Article |
| id | doaj.art-6024e9f627bb4a07b0f0b969d802da2a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T22:27:55Z |
| publishDate | 2023-09-01 |
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| series | Metals |
| spelling | doaj.art-6024e9f627bb4a07b0f0b969d802da2a2023-11-19T11:56:43ZengMDPI AGMetals2075-47012023-09-01139156410.3390/met13091564Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-RollingZhikun Ma0Tao Zhong1Dongpeng Sun2Bingyu Qian3Nodir Turakhodjaev4Sergey Betsofen5Ruizhi Wu6Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, ChinaDepartment of Science and Technology, Nanning College for Vocational Technology, Nanning 530008, ChinaKey Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, ChinaDepartment of Machine Building, Tashkent State Technical University, Tashkent 100056, UzbekistanMoscow Aviation Institute, Russian National Research University, Moscow 121552, RussiaKey Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, ChinaThe influence of normal rolling and cross-rolling on the microstructure, mechanical properties, and anisotropy of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr alloy was investigated. With an increase in the rolling reduction amount, both the strength and plasticity of the alloy are enhanced. Among them, the alloy in the normal rolling state with a deformation amount of 90% exhibits the best properties, with a tensile strength of 362 MPa and an elongation of 19.1% along the rolling direction. During the rolling process, the intergranular Cu-containing phase in the alloy is continuously broken and dissolved, leading to a decrease in both size and quantity, turning from continuous distribution along grain boundaries to a granular distribution. Moreover, a large quantity of the Al<sub>3</sub>Li phase and Al<sub>3</sub>(Er, Zr, Li) core–shell composite phase are precipitated in the alloy. Recrystallization occurs mainly through the particle stimulated nucleation (PSN) mechanism. Cross-rolling eliminates the brass-type texture <111> produced by normal rolling and enhances the brass R-type texture {111}<112>. The index of plane anisotropy (IPA) of the strength decreases from 10.1% for normal rolling to 5.5% for cross-rolling, and the IPA of elongation decreases from 12.8% to 3.3%. Cross-rolling provides an effective method to reduce the anisotropy of Al-Li alloys.https://www.mdpi.com/2075-4701/13/9/1564Al-Li alloycross-rollingmicrostructureanisotropytexture |
| spellingShingle | Zhikun Ma Tao Zhong Dongpeng Sun Bingyu Qian Nodir Turakhodjaev Sergey Betsofen Ruizhi Wu Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling Metals Al-Li alloy cross-rolling microstructure anisotropy texture |
| title | Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling |
| title_full | Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling |
| title_fullStr | Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling |
| title_full_unstemmed | Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling |
| title_short | Microstructure and Anisotropy of Mechanical Properties of Al-3Li-1Cu-0.4Mg-0.1Er-0.1Zr Alloys Prepared by Normal Rolling and Cross-Rolling |
| title_sort | microstructure and anisotropy of mechanical properties of al 3li 1cu 0 4mg 0 1er 0 1zr alloys prepared by normal rolling and cross rolling |
| topic | Al-Li alloy cross-rolling microstructure anisotropy texture |
| url | https://www.mdpi.com/2075-4701/13/9/1564 |
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