Fatigue crack propagation behavior of high strength titanium alloy
High strength Ti-5Al-3Mo-3V-2Zr-2Cr-1Nb-1Fe（Ti-5321） alloy is a new type of high strength tolerance titanium alloy designed and developed to meet the demand of high performance titanium alloy for new generation aircraft in China. Ti-5321 alloy with equiaxed microstructure（EM），basket-weave microstruc...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Aeronautical Materials
2024-04-01
|
| Series: | Journal of Aeronautical Materials |
| Subjects: | |
| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000154 |
| _version_ | 1797215088288989184 |
|---|---|
| author | WANG Huan XIN Shewei GUO Ping QIANG Fei ZHANG Lei QIAO Zhongli ZHAO Yongqing |
| author_facet | WANG Huan XIN Shewei GUO Ping QIANG Fei ZHANG Lei QIAO Zhongli ZHAO Yongqing |
| author_sort | WANG Huan |
| collection | DOAJ |
| description | High strength Ti-5Al-3Mo-3V-2Zr-2Cr-1Nb-1Fe（Ti-5321） alloy is a new type of high strength tolerance titanium alloy designed and developed to meet the demand of high performance titanium alloy for new generation aircraft in China. Ti-5321 alloy with equiaxed microstructure（EM），basket-weave microstructure（BW） and fine basket-weave microstructure（F-BW）was obtained by forging and heat treatment，and the tensile properties and fatigue crack growth behavior were studied. Fatigue crack propagation mechanisms in Paris and unstable propagation regimes were revealed by analyzing the microstructures and fracture morphology using optical microscopy (OM) and scanning electron microscopy (SEM). The results show that the samples with EM，BW and F-BW exhibit the excellent fatigue crack propagation resistance with the tensile strength of 1200 MPa. The sample with F-BW presents the highest fatigue crack propagation resistance in Paris and rapid growth regimes，while the sample with EM presents the lowest fatigue crack propagation resistance. In F-BW， the crack mainly propagates through and along α phase. Crack tends to propagate across colony oriented for （\begin{document}$ \bar{1} 011$\end{document}）<\begin{document}$ {1}2\bar10 $\end{document}> pyramidal slip and propagates along colony oriented for （\begin{document}$10 \bar{1} 0$\end{document}）<\begin{document}$1 \bar{2} 10$\end{document}> prismatic planes. |
| first_indexed | 2024-04-24T11:24:30Z |
| format | Article |
| id | doaj.art-5872e2f75a4643c5bb6b073fe5fbbc95 |
| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-04-24T11:24:30Z |
| publishDate | 2024-04-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-5872e2f75a4643c5bb6b073fe5fbbc952024-04-11T02:38:19ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532024-04-0144217618310.11868/j.issn.1005-5053.2023.000154a2023-0154Fatigue crack propagation behavior of high strength titanium alloyWANG Huan0XIN Shewei1GUO Ping2QIANG Fei3ZHANG Lei4QIAO Zhongli5ZHAO Yongqing6Northwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaNorthwest Institute for Nonferrous Metal Research，Xi’an 710016，ChinaHigh strength Ti-5Al-3Mo-3V-2Zr-2Cr-1Nb-1Fe（Ti-5321） alloy is a new type of high strength tolerance titanium alloy designed and developed to meet the demand of high performance titanium alloy for new generation aircraft in China. Ti-5321 alloy with equiaxed microstructure（EM），basket-weave microstructure（BW） and fine basket-weave microstructure（F-BW）was obtained by forging and heat treatment，and the tensile properties and fatigue crack growth behavior were studied. Fatigue crack propagation mechanisms in Paris and unstable propagation regimes were revealed by analyzing the microstructures and fracture morphology using optical microscopy (OM) and scanning electron microscopy (SEM). The results show that the samples with EM，BW and F-BW exhibit the excellent fatigue crack propagation resistance with the tensile strength of 1200 MPa. The sample with F-BW presents the highest fatigue crack propagation resistance in Paris and rapid growth regimes，while the sample with EM presents the lowest fatigue crack propagation resistance. In F-BW， the crack mainly propagates through and along α phase. Crack tends to propagate across colony oriented for （\begin{document}$ \bar{1} 011$\end{document}）<\begin{document}$ {1}2\bar10 $\end{document}> pyramidal slip and propagates along colony oriented for （\begin{document}$10 \bar{1} 0$\end{document}）<\begin{document}$1 \bar{2} 10$\end{document}> prismatic planes.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000154ti-5321 alloyfine basket-weave microstructurefracture morphologyfatigue crack growth mechanism |
| spellingShingle | WANG Huan XIN Shewei GUO Ping QIANG Fei ZHANG Lei QIAO Zhongli ZHAO Yongqing Fatigue crack propagation behavior of high strength titanium alloy Journal of Aeronautical Materials ti-5321 alloy fine basket-weave microstructure fracture morphology fatigue crack growth mechanism |
| title | Fatigue crack propagation behavior of high strength titanium alloy |
| title_full | Fatigue crack propagation behavior of high strength titanium alloy |
| title_fullStr | Fatigue crack propagation behavior of high strength titanium alloy |
| title_full_unstemmed | Fatigue crack propagation behavior of high strength titanium alloy |
| title_short | Fatigue crack propagation behavior of high strength titanium alloy |
| title_sort | fatigue crack propagation behavior of high strength titanium alloy |
| topic | ti-5321 alloy fine basket-weave microstructure fracture morphology fatigue crack growth mechanism |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000154 |
| work_keys_str_mv | AT wanghuan fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT xinshewei fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT guoping fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT qiangfei fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT zhanglei fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT qiaozhongli fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy AT zhaoyongqing fatiguecrackpropagationbehaviorofhighstrengthtitaniumalloy |