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In situ solid-solid phase transition observations in Ti alloys

Grant number: 18/08184-7
Support Opportunities:Regular Research Grants
Duration: September 01, 2018 - August 31, 2020
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
Convênio/Acordo: University of Wollongong
Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
Principal Investigator:Rubens Caram Junior
Grantee:Rubens Caram Junior
Principal researcher abroad: Rian Johannes Dippenaar
Institution abroad: University of Wollongong (UOW), Australia
Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:16/24693-3 - Non-classic Precipitation of Alpha Phase in Ti-Nb-Fe and Ti-Nb-Fe-Sn Alloys, AP.R


This project aims to reinforce the collaborative research activities that have previously been established between Prof. Rubens Caram (University of Campinas - UNICAMP, Brazil) and Prof. Rian Dippenaar (University of Wollongong - UOW, Australia). The main scientific goal of this proposal is to investigate solid-solid phase transformations in titanium alloys using in situ observations in a high-temperature laser-scanning confocal microscope (HTSCM). It is intended to evaluate microstructure evolution of Ti alloys submitted to aging treatments to verify whether alpha-phase can be nucleated homogeneously and assisted by pseudo-spinodal decomposition. While UNICAMP team has appropriate facilities and knowledge that allow investigation of different Ti alloys, the UOW team has prior experience in the analysis of phase transformations in metallic alloys using HTSCM. Samples will be prepared and processed at UNICAMP and in situ aging heat treatments will be carried out in a HTSCM equipment at UOW. To the best of our knowledge, in situ observations of phase transformation in metastable beta-Ti alloys using HTSCM are very original and the potential research outcomes are aimed at clarifying several phenomena related to alpha-phase precipitation. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CAMPO, KAIO NIITSU; FANTON, LEONARDO; DE MELLO, MARIANA GERARDI; MOON, SUK-CHUN; DIPPENAAR, RIAN; CARAM, RUBENS. Exploring the Ti-5553 phase transformations utilizing in-situ high-temperature laser-scanning confocal microscopy. MATERIALS CHARACTERIZATION, v. 159, . (18/08184-7)

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