Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy
A new biomaterial Ti–14Cr alloy was designed for biomedical applications. The manufacturing process of Ti alloys through hot deformation is crucial for controlling the grain structure and the mechanical performance of the alloy. In the present study, several compression tests at elevated temperature...
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| Format: | Article |
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Elsevier
2022-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542201393X |
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| author | Sumit Ghosh Atef Hamada Madan Patnamsetty Wojciech Borek Mohammed Gouda Akihiko Chiba Saad Ebied |
| author_facet | Sumit Ghosh Atef Hamada Madan Patnamsetty Wojciech Borek Mohammed Gouda Akihiko Chiba Saad Ebied |
| author_sort | Sumit Ghosh |
| collection | DOAJ |
| description | A new biomaterial Ti–14Cr alloy was designed for biomedical applications. The manufacturing process of Ti alloys through hot deformation is crucial for controlling the grain structure and the mechanical performance of the alloy. In the present study, several compression tests at elevated temperatures (1123–1273 K) and strain rate ranges of 0.01–10 s−1 were conducted using a Gleeble-3800 thermomechanical simulator. A processing map of the studied alloy was constructed using the principles of the dynamic material model to evaluate the hot workability and deformation mechanisms at different ranges of temperature and strain rate. The resulting grain structure was correlated with the processing map.The processing map showed that adiabatic shear bands are expected to form at low temperatures (1123–1223 K) and moderate to high strain rates (1–10 s−1), whereas the nucleation of wedge cracks is likely to develop at the grain boundary at high temperatures and low strain rates (1248–1273/0.01 s−1). Consequently, a deterministic domain in the temperature and strain rate ranges of 1148–1273 K and 0.01–0.1 s−1, respectively, was identified as the domain of dynamic recrystallization with a peak efficiency of the order of ∼70% at 1173 K/0.01 s−1, and these were considered to be the optimum parameters for hot deformation. The constitutive flow behavior was modeled based on the hyperbolic–sinusoidal Arrhenius-type equations, and a mathematical relation was used to elucidate the influence of true strain on material constants. |
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| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T01:55:56Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-6f33a1752e484ceead1bb5929e29eb0f2022-12-22T03:52:48ZengElsevierJournal of Materials Research and Technology2238-78542022-09-012040974113Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloySumit Ghosh0Atef Hamada1Madan Patnamsetty2Wojciech Borek3Mohammed Gouda4Akihiko Chiba5Saad Ebied6Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, FI-90014, FinlandKerttu Saalasti Institute, Future Manufacturing Technologies (FMT) Unit, University of Oulu, Pajatie 5, 85500 Nivala, Finland; Corresponding author.Materials Science and Environmental Engineering, Tampere University, 33720, Tampere, FinlandInstitute of Engineering Materials and Biomaterials, Silesian University of Technology, Ul. Konarskiego 18a, 44-100 Gliwice, PolandMining and Petroleum Engineering Department Al-Azhar University Al Nasr Road, Nasr City, 11751, Cairo, EgyptInstitute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, JapanDepartment of Production Engineering and Mechanical Design, Faculty of Engineering, Tanta University, Tanta, 31527, EgyptA new biomaterial Ti–14Cr alloy was designed for biomedical applications. The manufacturing process of Ti alloys through hot deformation is crucial for controlling the grain structure and the mechanical performance of the alloy. In the present study, several compression tests at elevated temperatures (1123–1273 K) and strain rate ranges of 0.01–10 s−1 were conducted using a Gleeble-3800 thermomechanical simulator. A processing map of the studied alloy was constructed using the principles of the dynamic material model to evaluate the hot workability and deformation mechanisms at different ranges of temperature and strain rate. The resulting grain structure was correlated with the processing map.The processing map showed that adiabatic shear bands are expected to form at low temperatures (1123–1223 K) and moderate to high strain rates (1–10 s−1), whereas the nucleation of wedge cracks is likely to develop at the grain boundary at high temperatures and low strain rates (1248–1273/0.01 s−1). Consequently, a deterministic domain in the temperature and strain rate ranges of 1148–1273 K and 0.01–0.1 s−1, respectively, was identified as the domain of dynamic recrystallization with a peak efficiency of the order of ∼70% at 1173 K/0.01 s−1, and these were considered to be the optimum parameters for hot deformation. The constitutive flow behavior was modeled based on the hyperbolic–sinusoidal Arrhenius-type equations, and a mathematical relation was used to elucidate the influence of true strain on material constants.http://www.sciencedirect.com/science/article/pii/S223878542201393XBeta (β)-Titanium alloysHot deformationSoftening mechanismFlow stress modelProcessing map |
| spellingShingle | Sumit Ghosh Atef Hamada Madan Patnamsetty Wojciech Borek Mohammed Gouda Akihiko Chiba Saad Ebied Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy Journal of Materials Research and Technology Beta (β)-Titanium alloys Hot deformation Softening mechanism Flow stress model Processing map |
| title | Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy |
| title_full | Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy |
| title_fullStr | Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy |
| title_full_unstemmed | Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy |
| title_short | Constitutive modeling and hot deformation processing map of a new biomaterial Ti–14Cr alloy |
| title_sort | constitutive modeling and hot deformation processing map of a new biomaterial ti 14cr alloy |
| topic | Beta (β)-Titanium alloys Hot deformation Softening mechanism Flow stress model Processing map |
| url | http://www.sciencedirect.com/science/article/pii/S223878542201393X |
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