| Texto completo | |
| Autor(es): |
Goncalves, Vinicius Richieri Manso
;
Filho, Paulo Noronha Lisboa
;
Afonso, Conrado Ramos Moreira
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Materials Letters; v. 349, p. 5-pg., 2023-10-15. |
| Resumo | |
The NbC powder was added to commercially pure Ti and beta Ti-40Nb alloy and prepared by an arc-melting process, and its effect on the as-cast samples was microstructurally investigated with electron backscattered diffraction (EBSD). The results showed that two in-situ Ti-based matrix composites (TMCs) were produced due to chemical reactions during melting. In summary, each TMC presented only two phases: alpha Ti matrix reinforced with TiC phase (in the case of Ti + 5 %NbC), and beta Ti-Nb matrix reinforced with TiC (in the case of Ti-40Nb + 5 %NbC). Furthermore, the results showed that the composite composition affects the TiC morphology, such as a short rod shape was obtained with richer Ti content in the Ti:C fraction (Ti + 5 %NbC), whereas lowering the Ti proportion (Ti-40Nb + 5 %NbC) resulted in equiaxed granular TiC. Thus, this study provides additional microstructural information about promisors wear-resistant TMCs. (AU) | |
| Processo FAPESP: | 18/00746-6 - Desenvolvimento e caracterização de compósitos in-situ de matriz de Ti-Nb para aplicação biomédica |
| Beneficiário: | Vinícius Richieri Manso Gonçalves |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |