Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures
The mechanical properties and microstructure evolution of the spray formed 2195 alloy extruded sheet at warm forming temperatures (100 °C–300 °C) were systematically investigated in this work. The results showed that the yield strength and ultimate tensile strength of the alloy declined obviously as...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422019330 |
| _version_ | 1797943015799521280 |
|---|---|
| author | Kuizhao Wang Cunsheng Zhang Zijie Meng Zinan Cheng Liang Chen Guoqun Zhao |
| author_facet | Kuizhao Wang Cunsheng Zhang Zijie Meng Zinan Cheng Liang Chen Guoqun Zhao |
| author_sort | Kuizhao Wang |
| collection | DOAJ |
| description | The mechanical properties and microstructure evolution of the spray formed 2195 alloy extruded sheet at warm forming temperatures (100 °C–300 °C) were systematically investigated in this work. The results showed that the yield strength and ultimate tensile strength of the alloy declined obviously as the temperature rose, while the elongation increased initially and then decreased. With an increase in the strain rate, the yield strength and elongation of the alloy decreased, whereas the tensile strength increased. In addition, the tensile fracture behavior of the alloy was significantly affected by the temperature, and the fracture mode gradually shifted from intergranular fracture to ductile fracture as the temperature rose. The softening mechanism of the alloy was dominated by the dynamic recovery at different temperatures, and a certain degree of dynamic recrystallization was observed at 300 °C, which resulted in a dramatic decrease in the dislocation density of the alloy. Moreover, with an increase in temperature, coarser grains also appeared. Besides, the dislocation density and grain size of the alloy decreased initially and then increased with an increasing strain rate. Finally, it was found that the texture component of the alloy under different test conditions was mainly composed of deformation textures such as Brass and S. With the temperature increasing, the alloy showed a decrease first and then an increase in the texture strength, while the texture strength of the alloy increased continuously as the strain rate increased. |
| first_indexed | 2024-04-10T20:17:44Z |
| format | Article |
| id | doaj.art-60613467219d44a592e78837bd0a3900 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:17:44Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-60613467219d44a592e78837bd0a39002023-01-26T04:46:08ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012216641676Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperaturesKuizhao Wang0Cunsheng Zhang1Zijie Meng2Zinan Cheng3Liang Chen4Guoqun Zhao5Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaCorresponding author.; Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University, Jinan, Shandong, 250061, ChinaThe mechanical properties and microstructure evolution of the spray formed 2195 alloy extruded sheet at warm forming temperatures (100 °C–300 °C) were systematically investigated in this work. The results showed that the yield strength and ultimate tensile strength of the alloy declined obviously as the temperature rose, while the elongation increased initially and then decreased. With an increase in the strain rate, the yield strength and elongation of the alloy decreased, whereas the tensile strength increased. In addition, the tensile fracture behavior of the alloy was significantly affected by the temperature, and the fracture mode gradually shifted from intergranular fracture to ductile fracture as the temperature rose. The softening mechanism of the alloy was dominated by the dynamic recovery at different temperatures, and a certain degree of dynamic recrystallization was observed at 300 °C, which resulted in a dramatic decrease in the dislocation density of the alloy. Moreover, with an increase in temperature, coarser grains also appeared. Besides, the dislocation density and grain size of the alloy decreased initially and then increased with an increasing strain rate. Finally, it was found that the texture component of the alloy under different test conditions was mainly composed of deformation textures such as Brass and S. With the temperature increasing, the alloy showed a decrease first and then an increase in the texture strength, while the texture strength of the alloy increased continuously as the strain rate increased.http://www.sciencedirect.com/science/article/pii/S2238785422019330Spray forming2195 Al–Li alloyMechanical propertiesMicrostructure evolutionFracture behavior |
| spellingShingle | Kuizhao Wang Cunsheng Zhang Zijie Meng Zinan Cheng Liang Chen Guoqun Zhao Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures Journal of Materials Research and Technology Spray forming 2195 Al–Li alloy Mechanical properties Microstructure evolution Fracture behavior |
| title | Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures |
| title_full | Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures |
| title_fullStr | Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures |
| title_full_unstemmed | Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures |
| title_short | Mechanical properties and microstructural evolution of the spray formed 2195 Al–Li alloy extruded sheet at warm temperatures |
| title_sort | mechanical properties and microstructural evolution of the spray formed 2195 al li alloy extruded sheet at warm temperatures |
| topic | Spray forming 2195 Al–Li alloy Mechanical properties Microstructure evolution Fracture behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019330 |
| work_keys_str_mv | AT kuizhaowang mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures AT cunshengzhang mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures AT zijiemeng mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures AT zinancheng mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures AT liangchen mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures AT guoqunzhao mechanicalpropertiesandmicrostructuralevolutionofthesprayformed2195allialloyextrudedsheetatwarmtemperatures |