CV Lattes
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Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica (FEM) (Institutional affiliation from the last research proposal) Birthplace: Brazil
graduate at Engenharia Mecânica from Universidade Estadual de Campinas (1981), master's at Mechanical Engineering from Universidade Estadual de Campinas (1983) and ph.d. at Mechanical Engineering from Universidade Estadual de Campinas (1988). Has experience in Material and Metallurgical Engineering, focusing on Physical Metallurgy, acting on the following subjects: microestrutura, metalurgia fisica, ligas metálicas, solidificacao and biomateriais. (Source: Lattes Curriculum)
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The laser powder bed fusion (L-PBF) additive manufacturing technique by usually depends on pre-alloyed metallic powders, with control of composition, morphology, and particle size which are obtained by sophisticated atomization techniques. In-situ metallic alloy formation in L-PBF processing is an interesting alternative and eliminates the need for high-cost pre-alloyed powders, but it is…
This research project will be undertaken in close cooperation between the School of Mechanical Engineering at University of Campinas (UNICAMP), the Department of Physics of Materials at the Faculty of Mathematics and Physics of Charles University (CUNI) and the Department of Ultrasonic Methods at the Institute of Thermomechanics of the Czech Academy of Sciences. Human joints (such as hip …
This proposal aims the development of state-of-the-art research in material science and nanotechnology by funding the creation of an EM laboratory (LM2E - LAB) at UNICAMP, hosted by IFGW, to meet the crucial demand for a bulky amount of EM-based materials characterization by several research groups, required to achieve the intended high-quality competitive scientific and technological res…
(Only some records are available in English at this moment)
Metastable beta Ti alloys are applied in a number of sectors and obtained when enough beta stabilizer contents are added to Ti, which leads to a decrease in the beta transus temperature, shifting the martensitic transformation start temperature to below room temperature. When solution heat treated at high temperatures and rapidly cooled, they show metastable retained beta phase combined w…
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…
(Only some records are available in English at this moment)
Metastable beta Ti alloys can exhibit beta phase retention (BCC structure) after rapid cooling from high temperatures. Beta phase has low mechanical strength, which can be increased by aging heat treatments, promoting the precipitation of the alpha phase (hexagonal structure) in a beta phase matrix. Associated with beta phase retention, omega phase precipitation occurs, which embrittles t…
Additive manufacturing of metallic materials is a relatively new topic and constitutes a revolutionary processing route, particularly when applied to Ti alloys. In this technique, metallic powders are deposited on a surface, layer by layer and in accordance with a digital file. In addition to making it possible to manufacture devices with complex geometries, this technology also allows ma…
The laser powder bed fusion (L-PBF) additive manufacturing technique by usually depends on pre-alloyed metallic powders, with control of composition, morphology, and particle size which are obtained by sophisticated atomization techniques. In-situ metallic alloy formation in L-PBF processing is an interesting alternative and eliminates the need for high-cost pre-alloyed powders, but it is…
(Only some records are available in English at this moment)
Additive manufacturing of metallic materials is a relatively new topic and constitutes a revolutionary processing route, particularly when applied to Ti alloys. In this technique, metallic powders are deposited on a surface, layer by layer and in accordance with a digital file. In addition to making it possible to manufacture devices with complex geometries, this technology also allows ma…
In Ti alloys, the combination of high mechanical strength and low elastic modulus is possible by controlling their phase transformations, applying appropriate heat treatments. This work aims to evaluate the microstructure and properties of the Ti-15Nb alloy obtained by arc melting and by additive manufacturing using the "in-situ alloying" concept. It is intended to analyze the formation o…
(Only some records are available in English at this moment)
The metastable beta Ti-5Al-5Mo-5V-3Cr-0.5Fe (wt.%) alloy, commonly known as Ti5553, is an interesting commercial material widely used in the aeronautical and aerospace industries as a structural component, thanks to its high specific strength, excellent corrosion resistance and relatively low specific weight. Notably, the TWIP and TRIP effects in this alloy can be activated at room temper…
Aging heat treatments applied to metastable beta Ti alloys produce fine precipitation of the alpha phase in a beta phase matrix. When this phenomenon is based on heterogeneous nucleation assisted by the omega phase, precipitation is predominantly intragranular. However, aging can also produce intergranular precipitation when assisted by crystalline grain boundaries, although it is undesir…
Titanium and its alloys offer a wide range of mechanical properties due to their physical metallurgy, allowing the obtaining of stiffness gradients through heat treatments in parts with or without compositional gradients. The Ti-42Nb alloy, belonging to the metastable ² alloys, is less susceptible to heat treatments, presenting a ductile microstructure with low mechanical strength and low…
Titanium and its alloys offer a wide range of mechanical properties due to their physical metallurgy, allowing the obtaining of stiffness gradients through heat treatments in parts with or without compositional gradients. The Ti-42Nb alloy, belonging to the metastable ² alloys, is less susceptible to heat treatments, presenting a ductile microstructure with low mechanical strength and low…
Titanium and its alloys are known by their unique combination of properties, such as high specific strength, excellent corrosion resistance in aqueous media, and low elastic modulus. Titanium also presents good biocompatibility, given by the stable and inert titanium dioxide (TiO2) layer that spontaneously form on its surface. TiO2 can also grow in the form of nanotubes or nanowires on th…
(Only some records are available in English at this moment)
| 7 / 7 | Ongoing grants |
| 31 / 19 | Completed research grants |
| 9 / 9 | Ongoing scholarships in Brazil |
| 36 / 21 | Completed scholarships in Brazil |
| 2 / 2 | Ongoing scholarships abroad |
| 6 / 6 | Completed scholarships abroad |
| 91 / 64 | All research grants and scholarships |
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