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João Lopes completed his M.Sc degree in Mechanical Engineering in November, 2019. In 2020, he was awarded with a scholarship from Fundação para a Ciência e a Tecnologia and currently he is a PhD candidate at NOVA School of Science and Technology (FCT NOVA). João's research is based on the microstructural and mechanical characterization High Entropy Alloys (HEAs) welded joints in similar and dissimilar combinations. Beyond the most common metallurgical analysis techniques such as Scanning Electron Microscopy (SEM), other characterization methods such as thermodynamical simulations and synchrotron x-ray diffraction are employed in the development of his work. Likewise, he has participated in 6 beamtimes at the DESY Synchrotron Facility (Germany). Until now, he has published 4 scientific articles in international peer-reviewed journals. His interests also lie in welding metallurgy of Shape Memory Alloys (SMAs), Additive Manufacturing (AM) and machine development.
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Identificação

Identificação pessoal

Nome completo
João Carlos Galveias Lopes

Nomes de citação

  • Lopes, João

Identificadores de autor

Ciência ID
2A1C-21F7-CD97
ORCID iD
0000-0003-3731-1278
Scopus Author Id
57214084985

Endereços de correio eletrónico

  • jcg.lopes@campus.fct.unl.pt (Profissional)

Telefones

Telemóvel
  • 934548998 (Pessoal)

Domínios de atuação

  • Ciências da Engenharia e Tecnologias - Engenharia Mecânica

Idiomas

Idioma Conversação Leitura Escrita Compreensão Peer-review
Inglês Utilizador independente (B2) Utilizador proficiente (C1) Utilizador proficiente (C1) Utilizador proficiente (C1) Utilizador independente (B2)
Espanhol; Castelhano Utilizador elementar (A1) Utilizador elementar (A2) Utilizador elementar (A1) Utilizador elementar (A2) Utilizador elementar (A1)
Formação
Grau Classificação
2025/03/05
Concluído
 Programa Doutoral em Engenharia Mecânica (Doutoramento)
Universidade Nova de Lisboa Departamento de Engenharia Mecânica e Industrial, Portugal
"INVESTIGATION ON WELDING OF HIGH ENTROPY ALLOYS IN SIMILAR AND DISSIMILAR COMBINATIONS" (TESE/DISSERTAÇÃO)
2014/09/09 - 2019/11/20
Concluído
 Engenharia Mecânica (Mestrado integrado)
Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia, Portugal
"Feasibility of the milling process on HSLA parts produced with Wire and Arc Additive Manufacturing" (TESE/DISSERTAÇÃO)
 15
Percurso profissional

Docência no Ensino Superior

Categoria Profissional
Instituição de acolhimento 		Empregador
2025 - Atual Professor Auxiliar Convidado (Docente Universitário) Universidade Nova de Lisboa Departamento de Ciência dos Materiais, Portugal
Produções

Publicações

Artigo em revista
  1. S. Sarmast-Ghahfarokhi; J.G. Lopes; S.S. Dash; J.P. Oliveira; Y. Zou; M.J. Benoit; Y.N. Zhou. "Evolution of hierarchical microstructures in Cu–Fe immiscible alloy driven by liquid-state mixing". Materials Today Advances (2025): http://dx.doi.org/10.1016/j.mtadv.2025.100622.
    10.1016/j.mtadv.2025.100622
  2. J. G. Lopes; J. P. Oliveira. "An Insight into Compositionally Complex Carbide Ceramic Coatings". Materials (2025): https://doi.org/10.3390/ma18173953.
    10.3390/ma18173953
  3. Jihui Yan; Joao G. Lopes; Kevin Chan; Nigel Scotchmer; Joao P. Oliveira; Y. Norman Zhou; Peng Peng. "Microstructure characterization of AlCrFeCoNi high-entropy alloy coating on Inconel 718 by electrospark deposition". Materials Characterization (2025): http://dx.doi.org/10.1016/j.matchar.2025.115139.
    10.1016/j.matchar.2025.115139
  4. Xiaoye Zhao; Hanwen Yang; J. G. Lopes; J. P. Oliveira; Adrian Gerlich; Y. Norman Zhou. "Joint Interface Characteristics and Phase Transformations in Laser Brazed Steel". Metallurgical and Materials Transactions A (2025): http://dx.doi.org/10.1007/s11661-025-07708-5.
    10.1007/s11661-025-07708-5
  5. Jiajia Shen; Rae Eon Kim; Jingjing He; J.G. Lopes; Jin Yang; Zhi Zeng; N. Schell; Hyoung Seop Kim; J.P. Oliveira. "Gas tungsten arc welding of CoCrFeMnNi high entropy alloy to 316 stainless steel". Materials Science and Engineering: A (2025): https://doi.org/10.1016/j.msea.2024.147664.
    10.1016/j.msea.2024.147664
  6. D. Afonso; J.G. Lopes; Y.T. Choi; R.E. Kim; N. Schell; N. Zhou; H.S. Kim; J.P. Oliveira. "Dissimilar laser welding of an as-rolled CoCrFeMnNi high entropy alloy to Inconel 718 superalloy". Optics & Laser Technology (2025): http://dx.doi.org/10.1016/j.optlastec.2024.111427.
    10.1016/j.optlastec.2024.111427
  7. Jiajia Shen; Rae Eon Kim; Jingjing He; Jin Yang; J.G. Lopes; Zhi Zeng; N. Schell; Hyoung Seop Kim; J.P. Oliveira. "Excellent strength/ductility synergy by optimization of post-weld heat treatment for gas metal arc welded CoCrFeMnNi high entropy alloys with 410 stainless filler wire: High-throughput thermodynamic modelling with experimental validation". Materials & Design (2025): https://doi.org/10.1016/j.matdes.2024.113556.
    10.1016/j.matdes.2024.113556
  8. Tiago A. Rodrigues; A. Malfeito; Francisco Werley Cipriano Farias; V. Duarte; João Lopes; João da Cruz Payão Filho; Julian A. Avila; et al. "Grain refinement of Inconel 625 during wire-based directed energy deposition additive manufacturing by in-situ added TiB2 particles: Process development, microstructure evolution and mechanical characterization". Intermetallics (2024): https://doi.org/10.1016/j.intermet.2024.108540.
    10.1016/j.intermet.2024.108540
  9. J.G. Lopes; M. Varela; S.H. Shim; N. Schell; E. Maawad; S.I. Hong; A.C. Baptista; J.P. Oliveira. "Gas tungsten arc welding of a multiphase CoCuxFeMnNi (x=20,30) high entropy alloy system: Microstructural differences and their consequences on mechanical performance". Intermetallics (2024): https://doi.org/10.1016/j.intermet.2024.108439.
    10.1016/j.intermet.2024.108439
  10. J.G. Lopes; J. Shen; E. Maawad; P. Agrawal; N. Schell; R.S. Mishra; J.P. Oliveira. "Time-resolved evolution of the deformation mechanisms in a TRIP/TWIP Fe50Mn30Co10Cr10 high entropy during tensile loading probed with synchrotron X-ray diffraction". International Journal of Plasticity (2024): https://doi.org/10.1016/j.ijplas.2024.104048.
    10.1016/j.ijplas.2024.104048
  11. J.G. Lopes; A. Candeias; P. Agrawal; J. Shen; N. Schell; R.S. Mishra; J.P. Oliveira. "Role of TiB2 inoculation particles during welding of a AlCoCrFeNi high entropy alloy". Journal of Alloys and Compounds (2024): http://dx.doi.org/10.1016/j.jallcom.2024.174694.
    10.1016/j.jallcom.2024.174694
  12. Samruddha Kokare; Jiajia Shen; Pedro P. Fonseca; João G. Lopes; Carla M. Machado; Telmo G. Santos; João P. Oliveira; Radu Godina. "Wire arc additive manufacturing of a high-strength low-alloy steel part: environmental impacts, costs, and mechanical properties". The International Journal of Advanced Manufacturing Technology (2024): http://dx.doi.org/10.1007/s00170-024-14144-z.
    10.1007/s00170-024-14144-z
  13. P. Dias; J. G. Lopes; T. Curado; E. Maawad; N. Schell; H. S. Kim; J. P. Oliveira. "In-situ microstructural evolution during tensile loading of CoCrFeMnNi high entropy alloy welded joint probed by high energy synchrotron X-ray diffraction". Science and Technology of Welding and Joining (2024): http://dx.doi.org/10.1177/13621718241259349.
    10.1177/13621718241259349
  14. K. Zhang; A. Shamsolhodaei; A. Ghatei-Kalashami; J.P. Oliveira; C. Zang; N. Schell; J. Li; et al. "Revealing microstructural evolution and mechanical properties of resistance spot welded NiTi-stainless steel with Ni or Nb interlayer". Journal of Materials Science & Technology (2024): https://doi.org/10.1016/j.jmst.2023.05.057.
    10.1016/j.jmst.2023.05.057
  15. J. G. Lopes; D. Martins; K. Zhang; B. Li; B. Wang; X. Wang; N. Schell; et al. "Unveiling the microstructure evolution and mechanical properties in a gas tungsten arc-welded Fe–Mn–Si–Cr–Ni shape memory alloy". Journal of Materials Science (2024): https://doi.org/10.1007/s10853-024-09606-4.
    10.1007/s10853-024-09606-4
  16. G.G. Ribamar; J.I. Pereira; J.D. Escobar; J.A. Avila; J.G. Lopes; E. Maawad; N. Schell; et al. "Microstructure gradients across the white etching and transition layers of a heavy haul pearlitic steel". Materials Characterization (2024): http://dx.doi.org/10.1016/j.matchar.2024.113811.
    10.1016/j.matchar.2024.113811
  17. Jiajia Shen; Wei Zhang; J.G. Lopes; Yutao Pei; Zhi Zeng; E. Maawad; N. Schell; et al. "Evolution of microstructure and deformation mechanisms in a metastable Fe42Mn28Co10Cr15Si5 high entropy alloy: A combined in-situ synchrotron X-ray diffraction and EBSD analysis". Materials & Design (2024): https://doi.org/10.1016/j.matdes.2024.112662.
    10.1016/j.matdes.2024.112662
  18. Joao G. Lopes; P. Rocha; D.A. Santana; Jiajia Shen; E. Maawad; N. Schell; F.G. Coury; João Pedro Oliveira. "Impact of Arc-Based Welding on the Microstructure Evolution and Mechanical Properties in Newly Developed Cr29.7Co29.7Ni35.4Al4Ti1.2 Multi-Principal Element Alloy". Advanced Engineering Materials (2023): http://dx.doi.org/10.1002/adem.202300109.
    10.1002/adem.202300109
  19. J.G. Lopes; Priyanka Agrawal; Jiajia Shen; N. Schell; Rajiv S. Mishra; J.P. Oliveira. "Evolution of microstructure and mechanical properties in gas tungsten arc welded dual-phase Fe50Mn30Co10Cr10 high entropy alloy". Materials Science and Engineering: A (2023): https://doi.org/10.1016/j.msea.2023.145233.
    10.1016/j.msea.2023.145233
  20. Jiajia Shen; J.G. Lopes; Zhi Zeng; Yeon Taek Choi; Emad Maawad; N. Schell; Hyoung Seop Kim; Rajiv S. Mishra; João Pedro Oliveira. "Deformation behavior and strengthening effects of an eutectic AlCoCrFeNi2.1 high entropy alloy probed by in-situ synchrotron X-ray diffraction and post-mortem EBSD". Materials Science and Engineering: A (2023): http://dx.doi.org/10.1016/j.msea.2023.144946.
    10.1016/j.msea.2023.144946
  21. JIAJIA SHEN; Priyanka Agrawal; Tiago A. Rodrigues; J.G. Lopes; N. Schell; Jingjing He; Zhi Zeng; Rajiv S. Mishra; J.P. Oliveira. "Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe42Mn28Co10Cr15Si5 metastable high entropy alloy". Materials Science and Engineering: A (2023): http://dx.doi.org/10.1016/j.msea.2023.144722.
    10.1016/j.msea.2023.144722
  22. Jiajia Shen; Rita Gonçalves; Yeon Taek Choi; J.G. Lopes; Jin Yang; N. Schell; Hyoung Seop Kim; J.P. Oliveira. "Microstructure and mechanical properties of gas metal arc welded CoCrFeMnNi joints using a 308 stainless steel filler metal". Scripta Materialia (2023): https://doi.org/10.1016/j.scriptamat.2022.115053.
    10.1016/j.scriptamat.2022.115053
  23. Jiajia Shen; Priyanka Agrawal; Tiago A. Rodrigues; J.G. Lopes; N. Schell; Zhi Zeng; Rajiv S. Mishra; J.P. Oliveira. "Gas tungsten arc welding of as-cast AlCoCrFeNi2.1 eutectic high entropy alloy". Materials & Design (2022): https://doi.org/10.1016/j.matdes.2022.111176.
    10.1016/j.matdes.2022.111176
  24. Jiajia Shen; Rita Gonçalves; Yeon Taek Choi; J.G. Lopes; Jin Yang; N. Schell; Hyoung Seop Kim; J.P. Oliveira. "Microstructure and mechanical properties of gas metal arc welded CoCrFeMnNi joints using a 410 stainless steel filler metal". Materials Science and Engineering: A (2022): http://dx.doi.org/10.1016/j.msea.2022.144025.
    10.1016/j.msea.2022.144025
  25. M. Shehryar Khan; P. Enrique; A. Ghatei-Kalashami; J.G. Lopes; N. Schell; J.P. Oliveira; E. Biro; Y. Norman Zhou. "The influence of in-situ alloying of electro-spark deposited coatings on the multiscale morphological and mechanical properties of laser welded Al–Si coated 22MnB5". Materials Science and Engineering: A (2022): https://doi.org/10.1016/j.msea.2022.142830.
    10.1016/j.msea.2022.142830
  26. Oliveira, J.P.; Shamsolhodaei, A.; Shen, J.; Lopes, J.G.; Gonçalves, R.M.; de Brito Ferraz, M.; Piçarra, L.; et al. "Improving the ductility in laser welded joints of CoCrFeMnNi high entropy alloy to 316 stainless steel". Materials and Design 219 (2022): http://www.scopus.com/inward/record.url?eid=2-s2.0-85130106746&partnerID=MN8TOARS.
    10.1016/j.matdes.2022.110717
  27. J.G. Lopes; Carla M. Machado; Valdemar R. Duarte; Tiago A. Rodrigues; Telmo G. Santos; J.P. Oliveira. "Effect of milling parameters on HSLA steel parts produced by Wire and Arc Additive Manufacturing (WAAM)". Journal of Manufacturing Processes 59 (2020): 739-749. https://doi.org/10.1016/j.jmapro.2020.10.007.
    10.1016/j.jmapro.2020.10.007
  28. Oliveira, J.P.; Curado, T.M.; Zeng, Z.; Lopes, J.G.; Rossinyol, E.; Park, J.M.; Schell, N.; Braz Fernandes, F.M.; Kim, H.S.. "Gas tungsten arc welding of as-rolled CrMnFeCoNi high entropy alloy". Materials and Design 189 (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85078076005&partnerID=MN8TOARS.
    10.1016/j.matdes.2020.108505
  29. Lopes, J.G.; Oliveira, J.P.. "A short review on welding and joining of high entropy alloys". Metals 10 2 (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85079226209&partnerID=MN8TOARS.
    10.3390/met10020212
Tese / Dissertação
  1. Lopes, João Carlos Galveias. "Feasibility of the milling process on HSLA parts produced with Wire and Arc Additive Manufacturing". Mestrado, 2019. http://hdl.handle.net/10362/89773.
Atividades

Júri de grau académico

Tema
Tipo de participação 		Nome do candidato (Tipo de grau)
Instituição / Organização
2022/07/13 Projeto e estudo de uma estrutura artesanal para produzir o efeito de gravação por corrosão química em peças metálicas (Projeto de licenciatura em Engenharia de Materiais)
Arguente
 Júlio Manuel Hernandez Antunes (Outro)
Universidade Nova de Lisboa Departamento de Ciência dos Materiais, Portugal
2022/07/13 Análise da variação de microestrutura e dureza de uma junta soldada de alta entropia por MIG-MAG (Projeto de licenciatura em Engenharia de Materiais)
Arguente
 Martim Francisco Palma Mestre (Outro)
Universidade Nova de Lisboa Departamento de Ciência dos Materiais, Portugal
2022/07/13 Soldadura MIG dissimilar da liga de alta entropia CrMnFeCoNi ao Inconel 625 (Projeto de licenciatura em Engenharia de Materiais)
Arguente
 Rodrigo Pedro (Outro)
Universidade Nova de Lisboa Departamento de Ciência dos Materiais, Portugal