8 documents found, page 1 of 1
Deformation-induced martensitic transformation in Co-28Cr-6Mo alloy produced by...
Antunes, Luiz Henrique Martinez; Quintero, John Jairo Hoyos; Andrade, Tathiane Caminha; Sarvezuk, Paulo Willian Carvalho; Wu, Leonardo; Ávila, J.A.The wear resistance of the biomedical low-carbon Co-28Cr-6Mo (wt.-%) alloy is primarily determined by the onset and magnitude of the face-centered cubic to hexagonal close-packed deformation-induced martensitic phase transformation. In metal-on-metal joint bearings, local plastic deformation occurs on the surface and in the subsurface regions. This can cause deformation-assisted structural changes in the materi...
Effect of the as-built microstructure on the martensite to austenite transforma...
Conde, F. F.; Avila, J. A. [UNESP]; Oliveira, J. P.; Schell, N.; Oliveira, M. F.; Escobar, J. D.Made available in DSpace on 2022-04-28T19:41:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Nuclear Fuel Cycle and Supply Chain; During laser-based powder bed fusion, the non-equilibrium solidification conditions promote local elemental segregation, leading to a characteristic microstructure composed of cellular walls. These...
Response of ferrite, bainite, martensite, and retained austenite to a fire cycl...
Escobar, J. D.; Delfino, P. M.; Ariza-Echeverri, E. A.; Carvalho, F. M.; Schell, N.; Stark, A.; Rodrigues, T. A.; Oliveira, J. P.; Avila, J. A. [UNESP]Made available in DSpace on 2022-04-28T19:47:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01; Companhia Brasileira de Metalurgia e Mineração; Laboratório Nacional de Nanotecnologia; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Fundação para a Ciência e a Tecnologia; Understanding the kinetics of microstructural degradation during the event of a fire is of major relevance to fut...
Deformation-induced martensitic transformation in Co-28Cr-6Mo alloy produced by...
Antunes, L. H.M.; Hoyos, J. J.; Andrade, T. C.; Sarvezuk, P. W.C.; Wu, L.; Ávila, J. A. [UNESP]; Oliveira, J. P.; Schell, N.; Jardini, A. L.Made available in DSpace on 2021-06-25T10:32:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); CALIPSOplus; Fundação para a Ciência e a Tecnologia; The wear resistance of the biomedical low-carbon Co-28Cr-6Mo (wt.-%) alloy is primarily determined by the onset and magnitude of the face-centered cubic to hexagonal close-packed def...
In-situ strengthening of a high strength low alloy steel during Wire and Arc Ad...
Rodrigues, Tiago A.; Duarte, V. R.; Tomás, D.; Avila, Julian A. [UNESP]; Escobar, J. D.; Rossinyol, Emma; Schell, N.; Santos, Telmo G.; Oliveira, J. P.Made available in DSpace on 2020-12-12T01:21:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-08-01; European Institute of Innovation and Technology; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); In this work, SiC particles were added to the molten pool during WAAM of a high strength low alloy steel. The introduction of these high melting point particles promoted grain refinement, and ...
Investigation of single phase Cu2ZnSnxSb1-xS4 compounds processed by mechanoche...
Neves, Filipe; Stark, A.; Schell, N.; Mendes, Manuel Joao; Aguas, H.; Fortunato, Elvira; Martins, Rodrigo; Correia, J.B.; Joyce, AABSTRACT: The copper zinc tin sulfide (CZTS) compound is a promising candidate as an alternative absorber material for thin-film solar cells. In this study, we investigate the direct formation of Cu1.92ZnSnx(Sb1-x)S-4 compounds [CZT(A)S], with x = 1, 0.85, 0.70, and 0.50, via a mechanochemical synthesis (MCS) approach, starting from powders of the corresponding metals, zinc sulfide, and sulfur. The thermal stab...
Filling the gaps of dinosaur eggshell phylogeny: Late Jurassic Theropod clutch ...
Araújo, Ricardo; Castanhinha, Rui; Martins, Rui M. S.; Mateus, Octávio; Hendrickx, Christophe; Beckmann, F.; Schell, N.; Alves, L. C.The non-avian saurischians that have associated eggshells and embryos are represented only by the sauropodomorph Massospondylus and Coelurosauria (derived theropods), thus missing the basal theropod representatives. We report a dinosaur clutch containing several crushed eggs and embryonic material ascribed to the megalosaurid theropod Torvosaurus. It represents the first associated eggshells and embryos of mega...
In situ experiments with synchrotron high-energy x-rays of Ni-Ti alloys produce...
Neves, Filipe; Correia, J.B.; Martins, Isabel M.; Fernandes, F. M. Braz; Mahesh, K. K.; Stark, A.; Schell, N.The structural evolution that takes place during the homogenization heat treatments of powder metallurgical Ni-Ti- alloys was studied by in situ synchrotron diffraction. It is proposed to get a deeper understanding of this phenomenon by using different types of thermal/mechanical cycles.