Non-classical mechanisms of solid-state precipitation in Ti alloys

• Grant number: 13/50391-6
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2013
• End date: October 31, 2014
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Agreement: Ohio State University
• Principal Investigator: Rubens Caram Junior
• Grantee: Rubens Caram Junior
• Principal researcher abroad: Hamish L. Frase
• Institution abroad: Ohio State University, Columbus, United States
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 11/23942-6 - Precipitation of alfa and omega phases and recrystallization phenomena in plastically cold deformed Ti-Nb-Sn alloys, AP.R

Abstract

The proposed program focuses on novel non-classical mechanisms of solid-state precipitation in metallic alloys, with a primary focus on titanium (Ti) alloys. The significance of the proposed program stems from the interrelationship between microstructure and properties in these alloys where these interrelationships have been determined experimentally. To reduce the time and costs of materials development and optimization, in the future these quantities will be the subject of prediction by computational models. The successful development of such computational models of microstructural evolution depends critically on accurate descriptions of the nucleation process, so that the models may be as physically relevant as possible. Hence, it is the role of the proposed program to provide such accurate descriptions of the factors that influence the nucleation process. (AU)

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)

SALVADOR, CAMILO A. F.; LOPES, EDER S. N.; OSPINA, CARLOS A.; CARAM, RUBENS. Orthorhombic martensite formation upon aging in a Ti-30Nb-4Sn alloy. Materials Chemistry and Physics, v. 183, p. 238-246, NOV 1 2016. (12/10164-8, 13/50391-6)

LOPES, EDER S. N.; DAL BO, MARIANA R.; OPINI, VICTOR C.; DE MELLO, MARIANA G.; RIOS, CARLOS T.; FRASER, HAMISH L.; CARAM, RUBENS. Crystallographic features of the Al3Nb, Nb2Al and Nb(Ni-1 (-) Al-x(x))(2) phases in a directionally solidified ternary eutectic microstructure. MATERIALS CHARACTERIZATION, v. 147, p. 303-310, JAN 2019. (13/50391-6)