Datum
2023-02-03Schlagwort
620 Ingenieurwissenschaften LegierungTitanMechanische EigenschaftAusscheidungBruchverhaltenMetadata
Zur Langanzeige
Aufsatz
Elevated Temperature Mechanical Characteristics and Fracture Behavior of a Novel Beta Titanium Alloy
Zusammenfassung
In the present work, the elevated-temperature deformation characteristics and microstructural evolution of a Ti-5V-5Mo-5Cr-4Al alloy in solution-treatment conditions were studied under a tensile load at temperatures in the range of 25 to 550 °C and strain rates between 0.001 and 0.1 s-¹. The results obtained indicated that, essentially, dynamic recovery (DRV) was the dominant softening mechanism in the case of the regimes considered. An analysis based on transmission electron microscopy (TEM) and the assessment of the mechanical behavior of the solution-heat-treated Ti-5V-5Mo-5Cr-4Al alloy revealed that dynamic precipitation (DPN) only took place at a strain rate of 0.001 s-¹ and at temperatures of 450 °C and 500 °C. Void coalescence occurred upon an increase in the deformation temperature and a decrease in the strain rate due to a higher rate of diffusion and the provision of sufficient time for growth, respectively. The results obtained in the present study pave the way for the robust processing of this novel β titanium alloy. Depending on the deformation parameters, the deformation characteristics can be governed by either DRV (at moderate temperatures) or DPN (at moderate temperatures and at low rates of deformation).
Zitierform
In: Crystals Volume 13 / Issue 2 (2023-02-03) eissn:2073-4352Zitieren
@article{doi:10.17170/kobra-202307288517,
author={Sajadifar, Seyed Vahid and Maier, Hans Jürgen and Niendorf, Thomas and Yapici, Guney Guven},
title={Elevated Temperature Mechanical Characteristics and Fracture Behavior of a Novel Beta Titanium Alloy},
journal={Crystals},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/14944 3000 Sajadifar, Seyed Vahid 3010 Maier, Hans Jürgen 3010 Niendorf, Thomas 3010 Yapici, Guney Guven 4000 Elevated Temperature Mechanical Characteristics and Fracture Behavior of a Novel Beta Titanium Alloy / Sajadifar, Seyed Vahid 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/14944=x R 4204 \$dAufsatz 4170 5550 {{Legierung}} 5550 {{Titan}} 5550 {{Mechanische Eigenschaft}} 5550 {{Ausscheidung}} 5550 {{Bruchverhalten}} 7136 ##0##http://hdl.handle.net/123456789/14944
2023-07-28T10:31:59Z 2023-07-28T10:31:59Z 2023-02-03 doi:10.17170/kobra-202307288517 http://hdl.handle.net/123456789/14944 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ Ti-5V-5Mo-5Cr-4Al alloy beta titanium elevated temperature mechanical behavior dynamic recovery dynamic precipitation fracture morphology forming 620 Elevated Temperature Mechanical Characteristics and Fracture Behavior of a Novel Beta Titanium Alloy Aufsatz In the present work, the elevated-temperature deformation characteristics and microstructural evolution of a Ti-5V-5Mo-5Cr-4Al alloy in solution-treatment conditions were studied under a tensile load at temperatures in the range of 25 to 550 °C and strain rates between 0.001 and 0.1 s-¹. The results obtained indicated that, essentially, dynamic recovery (DRV) was the dominant softening mechanism in the case of the regimes considered. An analysis based on transmission electron microscopy (TEM) and the assessment of the mechanical behavior of the solution-heat-treated Ti-5V-5Mo-5Cr-4Al alloy revealed that dynamic precipitation (DPN) only took place at a strain rate of 0.001 s-¹ and at temperatures of 450 °C and 500 °C. Void coalescence occurred upon an increase in the deformation temperature and a decrease in the strain rate due to a higher rate of diffusion and the provision of sufficient time for growth, respectively. The results obtained in the present study pave the way for the robust processing of this novel β titanium alloy. Depending on the deformation parameters, the deformation characteristics can be governed by either DRV (at moderate temperatures) or DPN (at moderate temperatures and at low rates of deformation). open access Sajadifar, Seyed Vahid Maier, Hans Jürgen Niendorf, Thomas Yapici, Guney Guven 11 Seiten doi:10.3390/cryst13020269 Legierung Titan Mechanische Eigenschaft Ausscheidung Bruchverhalten publishedVersion eissn:2073-4352 Issue 2 Crystals Volume 13 false 269
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