A5025590719- Intermetallics and Advanced Alloy Properties
- Metallurgical and Alloy Processes
- Advanced materials and composites
- High Entropy Alloys Studies
- High Temperature Alloys and Creep
- Semiconductor materials and interfaces
- High-Temperature Coating Behaviors
- Advanced Materials Characterization Techniques
- Aluminum Alloys Composites Properties
- Thermodynamic and Structural Properties of Metals and Alloys
- Metal Alloys Wear and Properties
- Additive Manufacturing Materials and Processes
- Aluminum Alloy Microstructure Properties
- Microstructure and Mechanical Properties of Steels
- Metallurgical Processes and Thermodynamics
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Metallic Glasses and Amorphous Alloys
- Material Properties and Failure Mechanisms
- Iron-based superconductors research
- Nuclear Materials and Properties
- Dental materials and restorations
- Shape Memory Alloy Transformations
- Powder Metallurgy Techniques and Materials
- Molten salt chemistry and electrochemical processes
Universidade Federal de Itajubá
2016-2025
Universidade de São Paulo
2011-2017
General Electric (Norway)
2011
Traditional biomaterials like CoCrMo, Ti, and stainless-steel face challenges due to their instability in biological settings. As an alternative, exploring multicomponent alloys is viewed as a viable path for bettering both mechanical performance biocompatibility. Our research explores the potentiality of MoNbNiTiZr based alloy biomedical applications. The microstructural characterization was realized using X-Ray Diffractometry (XRD) Scanning Electron Microscopy (SEM/EDS). We also conducted...
The focus of this work was to determine microstructural features in commercial Ni-Cr alloys which could be used identify indirectly the presence beryllium. Thus, eight were characterized by chemical analysis, thermal X-ray diffraction (XRD), scanning electron microscopy - back-scattered images (SEM/BSE), energy-dispersive spectroscopy (EDS). results indicate that beryllium can inferred from analysis via XRD and SEM/BSE. diffractograms beryllium-containing showed clearly existence NiBe...
The δ is an important stable phase that replaces the metastable γ'' in microstructure of Inconel 625 superalloy. present work aims to investigate kinetic δ-phase precipitation nickel-based superalloy aged at 550, and 725 °C up 1000 h. Aging temperatures were chosen based on thermodynamic simulation using JMatPro software which indicated this below 905 °C. Microstructure heat-treated samples was analyzed via SEM/EDS microhardness evolution performed by Vickers tests. results have shown 550...
Alloys containing Me-Si-B (Me - Refractory Metal) are of great interest for high temperature structural applications and accurate knowledge its low order systems (binaries ternaries) is important to predict the phase relations in multicomponent alloys. Recent reevaluations binaries Me-Si found out that accuracy description this type could be improved. Knowing this, a reevaluation invariant reactions V-Si system via microstructural characterization as-cast alloys presented. key compositions...
In this work a re-investigation of the solubility limits (Nb), Nb3Al, Nb2Al and Nb-rich side NbAl3 phases on Nb-Al system is presented. Alloys in binary fields ((Nb)+Nb3Al, Nb3Al+Nb2Al Nb2Al+NbAl3) were arc-melted, then equilibrated at 1000, 1200 1400 ºC. The confirmed via X-ray powder diffractometry, their compositions determined EPMA measurements. results showed agreement with literature concerning Nb3Al phases, while important differences values found for phase. addition, lattice...
In this paper, Fe-15at.%Nb alloys were produced from high purity Fe (min. 99.8%) and Nb powders via a mechanical alloying process. The effects of different Process Control Agents (i.e., methanol, hexane, stearic acid) investigated with powder morphologies, particle size distribution, phase formation, sampled after up to 80 milling hours at 350 rpm. morphologies sizes evaluated using scanning electron microscopy laser diffraction analysis, respectively, phases identified X-ray diffractometry....