Search Results - "de Souza, Gelson B."

Symmetry between the anisotropic N behavior in the lattice under high pressures and the formation of expanded austenite by de Oliveira, Willian R., Chuproski, Rafael F., Valadão, Guilherme M., Cintho, Osvaldo M., de Souza, Eder Carlos F., Serbena, Francisco C., de Souza, Gelson B.

“…•S-phase undergoes stress-induced decay and phase transitions at constant temperature.•The anisotropic lattice expansion and compression of the S-phase are…”
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Effect of anodizing time on the mechanical properties of porous titania coatings formed by micro-arc oxidation by Santos, Emanuel, de Souza, Gelson B., Serbena, Francisco C., Santos, Henrique L., de Lima, Gabriel G., Szesz, Eduardo M., Lepienski, Carlos M., Kuromoto, Neide K.

“…Porous TiO2 coatings were produced on commercially pure Ti substrates by micro-arc oxidation (MAO) in 1.0M H2SO4 electrolyte for different anodizing times…”
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Improved tribo-mechanical behavior of CaP-containing TiO2 layers produced on titanium by shot blasting and micro-arc oxidation by Szesz, Eduardo M., de Souza, Gelson B., de Lima, Gabriel G., da Silva, Bruno A., Kuromoto, Neide K., Lepienski, Carlos M.

“…The combination of shot blasting (SB) and micro-arc oxidation (or anodic oxidation—AO) in titanium surfaces was shown to provide enhanced conditions for cell…”
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Identification of Expanded Austenite in Nitrogen-Implanted Ferritic Steel through In Situ Synchrotron X-ray Diffraction Analyses by Schibicheski Kurelo, Bruna C. E., Lepienski, Carlos M., de Oliveira, Willian R., de Souza, Gelson B., Serbena, Francisco C., Cardoso, Rodrigo P., das Neves, Julio C. K., Borges, Paulo C.

“…The existence and formation of expanded austenite in ferritic stainless steels remains a subject of debate. This research article aims to provide comprehensive…”
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Tribo-mechanical features of nitride coatings and diffusion layers produced by cathodic cage technique on martensitic and supermartensitic stainless steels by Kurelo, Bruna C.E.S., de Souza, Gelson B., Rutz da Silva, Silvio L., Daudt, Natalia de F., Alves, Clodomiro, Torres, Ricardo D., Serbena, Francisco C.

“…The mechanical and tribological properties of martensitic AISI 420 (MSS) and supermartensitic HP13Cr (SMSS) stainless steels plasma nitrided using the cathodic…”
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Effect of duty cycle and treatment time on electrolytic plasma oxidation of commercially pure Al samples by Tavares, Matheus de M., Vitoriano, Jussier de O., Silva, Ruthilene C.L. da, Franco, Adonias R., Souza, Gelson B. de, Costa, José Alzamir P. da, Alves-Junior, Clodomiro

“…Plasma electrolytic oxidation (PEO) is an environmentally friendly anodizing technique that produces ceramic coatings using high voltage discharges. To the…”
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On the determination of hardness and elastic modulus in BaFe2As2 lamellar-like material by de Souza, Gelson B., Serbena, Francisco C., Jurelo, Alcione R., da Silva, Simone A., Pinheiro, Lincoln B.L.G., Dias, Fábio T., Mikowski, Alexandre, Bud'ko, Sergey L., Thaler, Alex, Canfield, Paul C.

“…The mechanical behavior of superconductor lamellar-like BaFe2As2 single crystals was investigated at nanoscale by instrumented indentation. The unique…”
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Surface mechanics and wear resistance of supermartensitic stainless steel nitrided by plasma immersion ion implantation by Schibicheski Kurelo, Bruna C.E., de Oliveira, Willian R., Serbena, Francisco C., de Souza, Gelson B.

“…In materials employed in the marine oil extraction, a nitrided layer produced by plasma immersion ion implantation (PI3) can improve the surface resistance…”
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Influence of the deposition parameters on the tribological behavior of cold gas sprayed FeMnCrSi alloy coatings by Pukasiewicz, Anderson G.M., de Oliveira, Willian R., Váz, Rodolpho F., de Souza, Gelson B., Serbena, Francisco C., Dosta, Sergi, Cano, Irene G.

“…Cold Spray deposition process may be an alternative for the High-Velocity Oxy-Fuel (HVOF), providing high kinetic energy without particles oxidation. In this…”
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Mechanical properties and corrosion resistance of αN-rich layers produced by PIII on a super ferritic stainless steel by Schibicheski Kurelo, Bruna C.E., de Souza, Gelson B., Serbena, Francisco C., Lepienski, Carlos M., Borges, Paulo C.

“…The properties of the “nitrogen expanded ferrite” or αN phase have been scarcely studied to date. This phase was obtained here on a super ferritic stainless…”
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Performance of nitrogen ion-implanted supermartensitic stainless steel in chlorine- and hydrogen-rich environments by Schibicheski Kurelo, Bruna C.E., de Souza, Gelson B., Serbena, Francisco C., de Oliveira, Willian R., Marino, Cláudia E.B., Taminato, Letícia A.

“…Modified supermartensitic stainless steel surfaces were investigated as protective means against deterioration in Cl−- and H+-rich media. Nitrogen plasma…”
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Mechanical properties of anodic titanium films containing ions of Ca and P submitted to heat and hydrothermal treatment by de Lima, Gabriel G., de Souza, Gelson B., Lepienski, Carlos M., Kuromoto, Neide K.

“…Anodic oxidation is a technique widely used to improve the bioactivity of Ti surface. In this study, micro-arc oxidation (MAO) was used to obtain an anodic…”
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Improved saline corrosion and hydrogen embrittlement resistances of superaustenitic stainless steel by PIII nitriding by Schibicheski Kurelo, Bruna C.E., de Souza, Gelson B., Serbena, Francisco C., Lepienski, Carlos M., Chuproski, Rafael Fillus, Borges, Paulo César

“…PIII nitriding was applied to superaustenitic steel to improve wear resistance without compromising pitting and hydrogen embrittlement corrosion resistance…”
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Plasma nitriding of HP13Cr supermartensitic stainless steel by Kurelo, Bruna C.E.S., de Souza, Gelson B., da Silva, Silvio L. Rutz, Serbena, Francisco C., Foerster, Carlos E., Alves, Clodomiro

“…•PN produced thick coatings (16–61μm) on supermartensitic stainless steel (SMSS).•ɛ-Fe2+xN, γ′-Fe4N and αN were formed in all working temperatures…”
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Nanoscratch and indentation fracture toughness in superconductor Ba–Fe–As single crystals with lamellar structure by Dias, Fábio T., Pinheiro, Lincoln B.L.G., de Souza, Gelson B., Serbena, Francisco C., da Silva, Simone A., Jurelo, Alcione R., Bud’ko, Sergey L., Thaler, Alex, Canfield, Paul C.

“…Tribological aspects of Ba(Fe0.974Mn0.026)2As2 single crystals were analyzed through nanoscratch tests and correlated with fracture toughness data. The ~100µm…”
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Tribo-mechanical characterization of rough, porous and bioactive Ti anodic layers by de Souza, Gelson B., de Lima, Gabriel G., Kuromoto, Neide K., Soares, Paulo, Lepienski, Carlos M., Foerster, Carlos E., Mikowski, Alexandre

“…Rough and porous titanium oxide layers, which are important features for improving the osseointegration of Ti implants with bone tissues, are obtained through…”
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Electrochemical and morphological analyses on the titanium surface modified by shot blasting and anodic oxidation processes by Szesz, Eduardo M., Pereira, Bruno L., Kuromoto, Neide K., Marino, Claudia E.B., de Souza, Gelson B., Soares, Paulo

“…In recent years, many surface modification processes have been developed in order to induce the osseointegration on titanium surface and thus to improve the…”
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Tribological properties of nanotubes grown on Ti-35Nb alloy by anodization by Luz, Aline R., de Souza, Gelson B., Lepienski, Carlos M., Siqueira, Carlos J.M., Kuromoto, Neide K.

“…Nanotubes grown on titanium and its alloys can improve biocompatibility, surface wettability and corrosion resistance when compared to untreated materials…”
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On the S-phase formation and the balanced plasma nitriding of austenitic-ferritic super duplex stainless steel by de Oliveira, Willian R., Kurelo, Bruna C.E.S., Ditzel, Dair G., Serbena, Francisco C., Foerster, Carlos E., de Souza, Gelson B.

“…[Display omitted] •At same temperatures, nitrogen PIII energies ruled the structure of α-γ grains.•The γN (or S) phase mediated nitriding in both austenite (γ)…”
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Microstructure Design of Powder-Pack Borided AISI 4140 Steel by Silveira, Luciana Leite, Pukasiewicz, Anderson G. Marenda, de Souza, Gelson B., Soares, Paulo, Vidal, Isabela de Fátima S., Abrahão, Ricardo, Torres, Ricardo Diego

“…This work attempts to design borided cases microstructure on AISI/SAE 4140 steel by changing the boron content in the pack boriding powder mixture. Three…”
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