Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process
The microstructure evolution of 2196 Al-Li alloy during aging was investigated by microhardness test, transmission electron microscope (TEM) analysis and in situ resistivity measurement. The results showed that the resistivity of the 2196 Al-Li alloy during aging rapidly decreased during the first f...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/16/23/7492 |
| _version_ | 1797399876863000576 |
|---|---|
| author | Xiang Li Hongying Li Haoqing Tang Xiang Xiao Jiaqiang Han Ziqiao Zheng |
| author_facet | Xiang Li Hongying Li Haoqing Tang Xiang Xiao Jiaqiang Han Ziqiao Zheng |
| author_sort | Xiang Li |
| collection | DOAJ |
| description | The microstructure evolution of 2196 Al-Li alloy during aging was investigated by microhardness test, transmission electron microscope (TEM) analysis and in situ resistivity measurement. The results showed that the resistivity of the 2196 Al-Li alloy during aging rapidly decreased during the first few hours, and then gradually increased after reaching the minimum value, which is temperature−dependent. The microstructure of the alloy was dominated by the δ′ phase after aging at 160 °C for 2 h while the T<sub>1</sub> phase could hardly be seen until it had been aged for 16 h. As the aging time went on, significant ripening appeared for the δ′ phase while typical growth could be observed for the T<sub>1</sub> phase. The increase in the resistivity of the 2196 Al-Li alloy during aging was attributed to the stronger electron scattering capacity of the T<sub>1</sub> precipitation and the coupling effect between the T<sub>1</sub> and δ′ phases. |
| first_indexed | 2024-03-09T01:47:26Z |
| format | Article |
| id | doaj.art-ec60b5b9cde549ee8eec8f9aa726e167 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T01:47:26Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ec60b5b9cde549ee8eec8f9aa726e1672023-12-08T15:21:28ZengMDPI AGMaterials1996-19442023-12-011623749210.3390/ma16237492Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging ProcessXiang Li0Hongying Li1Haoqing Tang2Xiang Xiao3Jiaqiang Han4Ziqiao Zheng5School of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaChina Aluminum Materials Application Research Institute Co., Ltd., Beijing 102209, ChinaChina Aluminum Materials Application Research Institute Co., Ltd., Beijing 102209, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaThe microstructure evolution of 2196 Al-Li alloy during aging was investigated by microhardness test, transmission electron microscope (TEM) analysis and in situ resistivity measurement. The results showed that the resistivity of the 2196 Al-Li alloy during aging rapidly decreased during the first few hours, and then gradually increased after reaching the minimum value, which is temperature−dependent. The microstructure of the alloy was dominated by the δ′ phase after aging at 160 °C for 2 h while the T<sub>1</sub> phase could hardly be seen until it had been aged for 16 h. As the aging time went on, significant ripening appeared for the δ′ phase while typical growth could be observed for the T<sub>1</sub> phase. The increase in the resistivity of the 2196 Al-Li alloy during aging was attributed to the stronger electron scattering capacity of the T<sub>1</sub> precipitation and the coupling effect between the T<sub>1</sub> and δ′ phases.https://www.mdpi.com/1996-1944/16/23/74922196 Al-Li alloyin situ resistivitymicrostructureaging |
| spellingShingle | Xiang Li Hongying Li Haoqing Tang Xiang Xiao Jiaqiang Han Ziqiao Zheng Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process Materials 2196 Al-Li alloy in situ resistivity microstructure aging |
| title | Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process |
| title_full | Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process |
| title_fullStr | Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process |
| title_full_unstemmed | Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process |
| title_short | Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process |
| title_sort | microstructure evolution and in situ resistivity response of 2196 al li alloy during aging process |
| topic | 2196 Al-Li alloy in situ resistivity microstructure aging |
| url | https://www.mdpi.com/1996-1944/16/23/7492 |
| work_keys_str_mv | AT xiangli microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess AT hongyingli microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess AT haoqingtang microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess AT xiangxiao microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess AT jiaqianghan microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess AT ziqiaozheng microstructureevolutionandinsituresistivityresponseof2196allialloyduringagingprocess |