Processing of Long Ti-15Mo Alloy Rods by Upscaling the Field-Assisted Sintering Technique

0584072 - ÚFP 2024 RIV DE eng J - Journal Article
Veverková, A. - Stráský, J. - Preisler, D. - Kozlík, J. - Chráska, Tomáš - Lukáč, František - Casas-Luna, M. - Janeček, M.
Processing of Long Ti-15Mo Alloy Rods by Upscaling the Field-Assisted Sintering Technique.
JOM. Roč. 75, č. 12 (2023), s. 5847-5858. ISSN 1047-4838. E-ISSN 1543-1851
R&D Projects: GA MŠMT LM2023065
Institutional support: RVO:61389021
Keywords : tI-15mO * Field-Assisted Sintering Technique * FAST
OECD category: Materials engineering
Impact factor: 2.6, year: 2022
Method of publishing: Limited access
https://link.springer.com/article/10.1007/s11837-023-06191-w

The field-Assisted sintering technique (FAST), also known as spark plasma sintering, is a fast consolidation powder metallurgy technique for conductive and non-conductive materials. However, FAST is commonly used for the manufacture of small specimens. The present work presents the feasibility of sintering larger rods of a biomedical Ti-15Mo alloy using FAST. By implementing an adequate die arrangement, long rods of nearly 80 mm in length and 15 mm in diameter were sintered in less than 30 min with a densification above 95%. Power consumption to produce larger samples is compared with that for typical small-processed specimens. However, microstructural features appeared due to the pressure and temperature distributions, inherent to the technique. The results highlight the opportunities and drawbacks of using FAST for the consolidation of larger specimens, while the microstructural and mechanical performance of the as-sintered and post-processed Ti-15Mo rods are given and compared to a conventionally prepared alloy.
Permanent Link: https://hdl.handle.net/11104/0352079