Strengthening effect of Mo in biocompatible titanium alloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512118" target="_blank" >RIV/00216208:11320/25:10512118 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YotaMAFa5a" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YotaMAFa5a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.msea.2025.149328" target="_blank" >10.1016/j.msea.2025.149328</a>
Alternative languages
Result language
angličtina
Original language name
Strengthening effect of Mo in biocompatible titanium alloys
Original language description
Metastable titanium alloys containing molybdenum (Mo) are promising for biomedical applications due to their superior mechanical properties. To investigate the influence of Mo content on thermomechanical processing, the deformation mechanisms in Ti-Mo alloys were analysed using hot compression experiments performed on Ti-12Mo and Ti-18Mo. Tests were carried out in both the alpha+beta-and beta-phase regions over a temperature range of 610 degrees C-910 degrees C and at strain rates from 0.01 s(-1)-10 s(-1), up to a true strain of 0.80, followed by immediate water quenching. Microstructural characterisation of samples tested in the alpha+beta-and beta-phase regions was performed using scanning electron microscopy images and electron backscatter diffraction measurements, respectively. Flow curves in the beta-phase region display pronounced work hardening, a behaviour rarely observed in beta-Ti alloys, which is likely attributed to suppressed dynamic recovery influenced by Mo. In alpha+beta-phase deformation, flow curves exhibit softening after reaching peak values, corresponding to morphological changes in the alpha phase. Due to the slow diffusivity of Mo, subgrain formation and alpha-phase globularisation were primarily confined to prior beta grain boundaries, resulting in a heterogeneous deformed microstructure. The extent of dynamic recovery, subgrain size, and dynamic alpha-phase globularisation were quantified and compared between the investigated alloys. Mo retards dynamic recovery and alpha-phase globularisation, increasing strength in the beta-phase region but reducing it in the alpha+ beta region.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
ISSN
0921-5093
e-ISSN
1873-4936
Volume of the periodical
948
Issue of the periodical within the volume
neuveden
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
149328
UT code for WoS article
001609214400001
EID of the result in the Scopus database
2-s2.0-105020265913