Szczegóły publikacji
Opis bibliograficzny
Effects of thermal treatments on microstructure and mechanical properties of a $Co-Cr-Mo-W$ biomedical alloy produced by laser sintering / P. Mengucci, G. Barucca, A. Gatto, E. Bassoli, L. Denti, F. Fiori, E. Girardin, P. Bastianoni, B. RUTKOWSKI, A. CZYRSKA-FILEMONOWICZ // Journal of the Mechanical Behavior of Biomedical Materials ; ISSN 1751-6161. — 2016 — vol. 60, s. 106–117. — Bibliogr. s. 116–117, Abstr. — Publikacja dostępna online od: 2016-01-08
Autorzy (10)
- Mengucci Paolo
- Barucca Gianni
- Gatto Andrea
- Bassoli Elena
- Denti L.
- Fiori F.
- Girardin E.
- Bastianoni P.
- AGHRutkowski Bogdan
- AGHCzyrska-Filemonowicz Aleksandra
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 95721 |
|---|---|
| Data dodania do BaDAP | 2016-02-09 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jmbbm.2015.12.045 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of the Mechanical Behavior of Biomedical Materials |
Abstract
Direct Metal Laser Sintering (DMLS) technology based on a layer by layer production process was used to produce a Co–Cr–Mo–W alloy specifically developed for biomedical applications. The alloy mechanical response and microstructure were investigated in the as-sintered state and after post-production thermal treatments. Roughness and hardness measurements, and tensile and flexural tests were performed to study the mechanical response of the alloy while X-ray diffraction (XRD), electron microscopy (SEM, TEM, STEM) techniques and microanalysis (EDX) were used to investigate the microstructure in different conditions. Results showed an intricate network of ε-Co (hcp) lamellae in the γ-Co (fcc) matrix responsible of the high UTS and hardness values in the as-sintered state. Thermal treatments increase volume fraction of the ε-Co (hcp) martensite but slightly modify the average size of the lamellar structure. Nevertheless, thermal treatments are capable of producing a sensible increase in UTS and hardness and a strong reduction in ductility. These latter effects were mainly attributed to the massive precipitation of an hcp Co3(Mo,W)2Si phase and the contemporary formation of Si-rich inclusions.
