Study on hot deformation behavior of beta Ti-17Mo alloy for biomedical applications
Ebied, Saad; Hamada, Atef; Gadelhaq, Mahmoud H. A.; Yamanaka, Kenta; Bian, Huakang; Cui, Yujie; Chiba, Akihiko; Gepreel, Mohamed A. H. (2022-01-06)
Ebied, S., Hamada, A., Gadelhaq, M.H.A. et al. Study on Hot Deformation Behavior of Beta Ti-17Mo Alloy for Biomedical Applications. JOM 74, 494–505 (2022). https://doi.org/10.1007/s11837-021-05060-8
© 2021 The Minerals, Metals & Materials Society. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s11837-021-05060-8.
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https://urn.fi/URN:NBN:fi-fe2023041736902
Tiivistelmä
Abstract
A novel biomaterial Ti-17Mo (mass%) was designed for orthopedic implant applications. Hot working behavior and deformation characteristics were studied in the β-single structure by hot compression tests in the strain rate range 0.01–10 s−1 and temperature range 1123–1273 K using a Thermec Master-Z simulator. The microstructural evolutions of the deformed alloy were studied by a scanning electron microscope equipped with an electron backscattered diffraction detector. The microstructures of the hot deformed alloy showed that dynamic recovery was more active than dynamic recrystallization (DRX). However, partial discontinuous DRX by grain boundary bulging is activated at high temperatures and low strain rates, e.g., 1273 K and 0.01 s−1. Due to the high stacking fault energy of the β phase with a bcc structure, the Ti-17Mo alloy possessed comparatively low activation energy of hot deformation (283 kJ/mol) compared with the conventional Ti alloys bearing multiple alloying elements.
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