Banca de QUALIFICAÇÃO: RICARDO LUÍS DE ARRUDA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RICARDO LUÍS DE ARRUDA
DATA : 12/12/2019
HORA: 14:00
LOCAL: sala 404, 4º andar, Bloco B, Campus SA da Fundação Universidade Federal do ABC, localizada na Avenida dos Estados, 5001, Santa Terezinha, Santo André, SP
TÍTULO:

Synthesis, characterization and heat treatments of the Ti-7Fe-11Nb alloy

PÁGINAS: 50
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Metalurgia Física
ESPECIALIDADE: Transformação de Fases
RESUMO:

The use of beta Ti alloys in several applications, such as structural materials, biomaterials, and energy storage, shows a continuous growth over the last years. Among the promising beta alloy systems of interest, those of the Ti-Nb system have gaining much attention. The microstructure of these alloys, phase stability, and possible martensitic transformation vary as function of the chemical composition, processing route employed and heat treatments. From the literature review, research reports on the production, microstructure evolution in as-cast and heat treated samples were not found for the Ti-7Fe-11Nb alloy. Therefore, in this project an investigation of these fundamental metallurgical aspects for the Ti-7Fe-11Nb alloy is proposed aiming to obtain an understanding on the microstructure formation in as-cast, annealed, and quenched conditions. The investigated alloy was produced by arc-melting in Ar atmosphere. The obtained as-cast sample was characterized by optical and confocal scanning laser microscopy. The XRD, SEM characterizations, as well as the heat treatments are on the way. These set of experimental data will allow the understanding of the microstructure formation in equilibrium and far from equilibrium conditions. Investigations on the effect of quenching to the alloy’s microstructure will be performed by quenching dilatometry and also nanohardness tests to assess the Young modulus of the alloy with different microstructures. Then, it will be possible to assess the beta phase stability in this alloy evaluating the possibility of martensitic transformation. The obtained information will be useful the buildup fundamental knowledge on the relevant metallurgical aspects for this alloy allowing forecasting its possible applicability in some technological fields such as hydrogen storage materials and biomedical applications.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1671298 - RENATO ALTOBELLI ANTUNES
Membro Titular - Examinador(a) Interno ao Programa - 1646041 - CARLOS TRIVENO RIOS
Membro Titular - Examinador(a) Externo à Instituição - SILVANO LEAL DOS SANTOS
Membro Suplente - Examinador(a) Interno ao Programa - 2390704 - MARA CRISTINA LOPES DE OLIVEIRA
Membro Suplente - Examinador(a) Interno ao Programa - 1893637 - ALEJANDRO ANDRES ZUNIGA PAEZ