Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys
Ti−6Al−3Nb−2Zr−1Mo alloys were prepared by forging and annealing at 980 ℃. The microstructure and mechanical properties of the annealed alloys on the different sections were studied by scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD). The results show that, compared...
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Editorial Office of Powder Metallurgy Technology
2021-08-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050006 |
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| author | LI Ye LIU Shi-feng WANG Jian-zhong WANG Li-qing AO Qing-bo MA Jun WU Chen TANG Hui-ping |
| author_facet | LI Ye LIU Shi-feng WANG Jian-zhong WANG Li-qing AO Qing-bo MA Jun WU Chen TANG Hui-ping |
| author_sort | LI Ye |
| collection | DOAJ |
| description | Ti−6Al−3Nb−2Zr−1Mo alloys were prepared by forging and annealing at 980 ℃. The microstructure and mechanical properties of the annealed alloys on the different sections were studied by scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD). The results show that, compared with the forged alloys, the content of α phase in the annealed Ti−6Al−3Nb−2Zr−1Mo alloys decreases, and the content of the metastable β phase increases. During the cooling in the air, the metastable β phase is transformed into the secondary α phase and a small amount of β phase. After annealing at 980 ℃, α-Ti in Ti−6Al−3Nb−2Zr−1Mo alloys exhibits the texture types of RD//[\begin{document}$ \bar {1} $\end{document}2\begin{document}$ \bar {1} $\end{document}0] and FD//[0001], where RD is the forging compression direction (forging direction), and FD is the free extension direction of forging. The fracture morphology of Ti−6Al−3Nb−2Zr−1Mo alloys along the different tensile direction is mainly ductile fracture, and the fracture mode shows the micropore aggregation fracture. When the annealed alloys are stretched in RD direction, the size of the dimple is larger, and the corresponding elongation is superior to that in any other direction. |
| format | Article |
| id | doaj-art-d8ae61d9ad0e4499aff40616c6e0b112 |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2021-08-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-d8ae61d9ad0e4499aff40616c6e0b1122024-12-12T03:13:27ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842021-08-0139432633110.19591/j.cnki.cn11-1974/tf.2020050006Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloysLI YeLIU Shi-feng0WANG Jian-zhong1WANG Li-qing2AO Qing-bo3MA Jun4WU Chen5TANG Hui-pingCollege of Metallurgical Engineering, Xi’ an University of Architecture and Technology, Xi’ an 710055, ChinaState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’ an 710016, ChinaState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’ an 710016, ChinaState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’ an 710016, ChinaState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’ an 710016, ChinaState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’ an 710016, ChinaTi−6Al−3Nb−2Zr−1Mo alloys were prepared by forging and annealing at 980 ℃. The microstructure and mechanical properties of the annealed alloys on the different sections were studied by scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD). The results show that, compared with the forged alloys, the content of α phase in the annealed Ti−6Al−3Nb−2Zr−1Mo alloys decreases, and the content of the metastable β phase increases. During the cooling in the air, the metastable β phase is transformed into the secondary α phase and a small amount of β phase. After annealing at 980 ℃, α-Ti in Ti−6Al−3Nb−2Zr−1Mo alloys exhibits the texture types of RD//[\begin{document}$ \bar {1} $\end{document}2\begin{document}$ \bar {1} $\end{document}0] and FD//[0001], where RD is the forging compression direction (forging direction), and FD is the free extension direction of forging. The fracture morphology of Ti−6Al−3Nb−2Zr−1Mo alloys along the different tensile direction is mainly ductile fracture, and the fracture mode shows the micropore aggregation fracture. When the annealed alloys are stretched in RD direction, the size of the dimple is larger, and the corresponding elongation is superior to that in any other direction.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050006titanium alloysforgingannealingmechanical propertiesmicrostructure |
| spellingShingle | LI Ye LIU Shi-feng WANG Jian-zhong WANG Li-qing AO Qing-bo MA Jun WU Chen TANG Hui-ping Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys Fenmo yejin jishu titanium alloys forging annealing mechanical properties microstructure |
| title | Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys |
| title_full | Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys |
| title_fullStr | Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys |
| title_full_unstemmed | Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys |
| title_short | Microstructure and mechanical properties of annealed Ti−6Al−3Nb−2Zr−1Mo titanium alloys |
| title_sort | microstructure and mechanical properties of annealed ti 6al 3nb 2zr 1mo titanium alloys |
| topic | titanium alloys forging annealing mechanical properties microstructure |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020050006 |
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