Carlos Ângelo Nunes

ORCID: 0000-0001-9100-9761
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About
Contact & Profiles
Research Areas
  • Intermetallics and Advanced Alloy Properties
  • Titanium Alloys Microstructure and Properties
  • Advanced materials and composites
  • Metal and Thin Film Mechanics
  • Semiconductor materials and interfaces
  • Metallurgical and Alloy Processes
  • High Temperature Alloys and Creep
  • Advanced Materials Characterization Techniques
  • MXene and MAX Phase Materials
  • Orthopaedic implants and arthroplasty
  • High-Temperature Coating Behaviors
  • Advanced ceramic materials synthesis
  • Microstructure and Mechanical Properties of Steels
  • Aluminum Alloys Composites Properties
  • Aluminum Alloy Microstructure Properties
  • Additive Manufacturing Materials and Processes
  • Hydrogen embrittlement and corrosion behaviors in metals
  • High Entropy Alloys Studies
  • Nuclear Materials and Properties
  • Metallurgical Processes and Thermodynamics
  • Welding Techniques and Residual Stresses
  • Boron and Carbon Nanomaterials Research
  • Metal Alloys Wear and Properties
  • Advanced Welding Techniques Analysis
  • Fusion materials and technologies

Universidade de São Paulo
2016-2025

Universidade Brasil
2013-2025

Hospital Universitário da Universidade de São Paulo
2010-2022

Universidade Federal do Rio de Janeiro
2016-2017

Universidade Estadual de Campinas (UNICAMP)
2012-2017

University of Maribor
2015

Universidade Estadual Paulista (Unesp)
2015

Universidade do Vale do Paraíba
2012

University of Vienna
2003-2012

Departamento de Ciência e Tecnologia
1999-2009

Ni-based superalloy Mar-M247 was evaluated as a potential tool material for friction stir processing (FSP) of X70 steel. The consists γ-γ' structure and minor precipitates, such MC carbide. FSP tests the performance at different rotation welding speeds effect shielding gas also analyzed. Prior to tests, hot compression showed that microstructure stable below 950 °C, which affected positively its mechanical strength. It observed overheating speed 400 rpm. In this condition destabilized...

10.1016/j.jmatprotec.2018.07.034 article EN publisher-specific-oa Journal of Materials Processing Technology 2018-07-29

Abstract In the present work, Halide Activated Pack Cementation (HAPC) was adopted to form protective aluminide coatings due its versatility and low cost. Codeposition of Al Si on Mar-M246 performed by HAPC using two different cements constituted 75 wt.% Al2O3 25 a mixture formed in weight ratios (Al: Si): PM I (50:50) II (72.5:27.5). The are composed outer part NiAl Ni2Al3 phases with significant presence I. After 200 h oxidation test at 1000 °C, samples coated exhibited best performance...

10.1590/0370-44672024780032 article EN cc-by REM - International Engineering Journal 2025-01-01

This study has investigated the niobium (Nb) additions effect on both microstructure and heat-treated Ti-10Mo-xNb (x = 3, 6 9) alloys mechanical properties. The microstructures were characterized by optical microscopy, X-ray diffraction transmission electron microscopy. characterization was carried out Vickers microhardness test Young's modulus measurements. outcomes show that addition of Nb in decreased proportion ω α' phases. Ti-10Mo-3Nb alloy presented best hardness elastic combination...

10.1590/s1516-14392010000300009 article EN cc-by Materials Research 2010-09-01
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