| Texto completo | |
| Autor(es): |
Batalha, Rodolfo Lisboa
[1, 2]
;
Pinotti, Vitor Eduardo
[1]
;
Alnoaimy, Omar O. S.
[3]
;
Batalha, Weverson Capute
[1]
;
Gustmann, Tobias
[4]
;
Kosiba, Konrad
[4]
;
Pauly, Simon
[5]
;
Bolfarini, Claudemiro
[1, 6]
;
Kiminami, Claudio Shyinti
[1, 6]
;
Gargarella, Piter
[1, 6, 7]
Número total de Autores: 10
|
| Afiliação do(s) autor(es): | [1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos - Brazil
[2] Inst Soldadura & Qualidade, Mat & Technol, Dept Res Dev & Innovat, Ave Prof Dr Cavaco Silva 33, Taguspk, P-2740120 Oeiras - Portugal
[3] Fraunhofer Inst Machine Tools & Forming Technol I, Nothnitzer Str 44, D-01187 Dresden - Germany
[4] Leibniz Inst Solid State & Mat Res, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden - Germany
[5] Univ Appl Sci Aschaffenburg, Fac Engn, Wurzburger Str 45, D-63743 Aschaffenburg - Germany
[6] Univ Fed Sao Carlos, Dept Mat Engn, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos - Brazil
[7] Univ Fed Sao Carlos, Ctr Characterizat & Dev Mat CCDM, Rod Washington Luiz, Km 235, BR-13565905 Sao Carlos - Brazil
Número total de Afiliações: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Materials Research; v. 37, n. 1, SI, p. 259-271, JAN 14 2022. |
| Citações Web of Science: | 0 |
| Resumo | |
The Ti-35Nb-7Zr-5Ta (wt%, TNZT) alloy was reinforced with TiB2 and synthesized by L-PBF. The relatively small TiB2 particles change the solidification structure from cellular to columnar-dendritic and lead to submicron TiB precipitation in the beta matrix.This results in pronounced grain refinement and reduction of texture. However, the microstructure of the additively manufactured TNZT-TiB2 is still different from the as-cast, unreinforced TNZT, which contains equiaxed and randomly oriented grains. The beta phase is less stable in the as-cast samples, leading to stress-induced martensitic transformation and recoverable strain of 1.5%. The TNZT with 1 wt% of TiB2 presents significantly higher compressive strength (sigma(YS) = 495 MPa) compared to unreinforced samples (sigma(YS) = 430 MPa), without sacrificing ductility or altering Young's modulus (E approximate to 46 GPa). The addition of a small fraction of TiB2 to the TNZT alloy synthesized by L-PBF is a promising alternative for manufacturing sophisticated components for biomedical applications. (AU) | |
| Processo FAPESP: | 13/05987-8 - Processamento e caracterização de ligas metálicas amorfas, metaestáveis e nano-estruturadas |
| Beneficiário: | Claudio Shyinti Kiminami |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 17/27031-4 - Influência de parâmetros de processo nas características metalúrgicas de peças fabricadas por manufatura aditiva |
| Beneficiário: | Piter Gargarella |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |