Search Results - "de Melo, Hercilio Gomes"

A Comparative Investigation of the Corrosion Resistance and HIC Suceptibility of API 5L X65 and API 5L X80 Steels by Quispe-Avilés, Janeth Marlene, Hincapie-Ladino, Duberney, Falleiros, Neusa Alonso, Melo, Hercílio Gomes de

“…High strength low alloy (HSLA) steels are used for the construction of pipelines for oil and natural gas transportation. For such applications pipelines must…”
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Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media by Santos, André de Mendonça, Almeida, Thassia Felix de, Cotting, Fernando, Aoki, Idalina Vieira, Melo, Hercílio Gomes de, Capelossi, Vera Rosa

“…The inhibition effect of castor bark powder obtained from Ricinus communis on AISI 1020 carbon steel in acidic media (HCl 0.5 mol.L-1) has been studied by…”
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EIS investigation of a Ce‐based posttreatment step on the corrosion behaviour of Alclad AA2024 anodized in TSA by Prada Ramirez, Oscar Mauricio, Queiroz, Fernanda Martins, Terada, Maysa, Donatus, Uyime, Costa, Isolda, Olivier, Marie‐Georges, Melo, Hercílio Gomes

“…In the aircraft industry, anodizing and posttreatment steps use Cr (VI) compounds, which, despite offering good corrosion resistance and self‐healing…”
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Effect of Mo content on microstructure and corrosion behavior in HCl of ultra-high strength maraging steels by Calderón-Hernández, José Wilmar, Moura da Fonseca, Daniela Passarelo, Prada-Ramirez, Oscar M., Hincapie-Ladino, Duberney, de Melo, Hercílio Gomes, Padilha, Angelo Fernando

“…Maraging steels are one of the highest strength steels commercially available. The new versions are known as ultra-high strength maraging (UHSM) steels and can…”
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Comparison of Corrosion Resistance of the AA2524-T3 and the AA2024-T3 by Queiroz, Fernanda Martins, Terada, Maysa, Bugarin, Aline F. Santos, de Melo, Hercílio Gomes, Costa, Isolda

“…The 2XXX Al alloys are characterized by their superior mechanical properties resulting from alloying elements and precipitation hardening treatments. The…”
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Corrosion characterization of new low manganese microalloyed X65 steels in sour and NON-SOUR synthetic seawater by Santos Martinez, Juan David, Ladino, Duberney H., Calderón Hernández, José Wilmar, Falleiros, Neusa A., de Melo, Hercílio Gomes

“…API 5L X65 microalloyed steels are extensively used for oil and gas transportation. In many cases, reserves of such resources contain H2S, constituting what is…”
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Evaluation of the anticorrosion performance of peel garlic extract as corrosion inhibitor for ASTM 1020 carbon steel in acidic solution by Barreto, Lhaira Souza, Tokumoto, Mirian Sanae, Guedes, Isabel Correia, Melo, Hercílio Gomes de, Amado, Franco Dani Rico, Capelossi, Vera Rosa

“…ABSTRACT Metallic corrosion can be delayed using corrosion inhibitors. However, several industrial corrosion inhibitors are toxic and harmful to the…”
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Effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 alloy by Queiroz, Fernanda Martins, Donatus, Uyime, Prada Ramirez, Oscar Maurício, de Sousa Araujo, João Victor, Gonçalves de Viveiros, Bárbara Victoria, Lamaka, Sviatlana, Zheludkevich, Mikhail, Masoumi, Mohammad, Vivier, Vincent, Costa, Isolda, Gomes de Melo, Hercílio

“…The effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 has been investigated using…”
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Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy by Pereira, Gualter Silva, Prada Ramirez, Oscar Mauricio, Avila, Pedro Renato Tavares, Avila, Julian Arnaldo, Pinto, Haroldo Cavalcanti, Miyazaki, Marcos Hideki, de Melo, Hercílio Gomes, Bose Filho, Waldek Wladimir

“…In this work, the electrochemical behavior and morphological characterization of a system consisting of a cerium conversion layer, a hybrid sol-gel coating,…”
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Study and Assessment of the Efficiency of the Cocoa Bark Extracted from the Theobroma Cacao as an Inhibitor of the Corrosion of Carbon Steel in Substitution of Benzotriazole by Barreto, Lhaira Souza, Tokumoto, Miriam Sanae, Guedes, Isabel Correia, Melo, Hercílio Gomes de, Amado, Franco, Capelossi, Vera Rosa

“…Corrosion represents high losses to the economy, therefore, researches on the minimization of its damages in materials, mainly the metallic ones, are…”
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Ce post-treatment for increased corrosion resistance of AA2024-T3 anodized in tartaric-sulfuric acid by Prada Ramirez, Oscar Mauricio, Tunes, Matheus Araujo, Mennucci, Marina Martins, Starykevich, Maksim, Neves, Cristina, Ferreira, Mário G.S., Pogatscher, Stefan, De Melo, Hercílio Gomes

“…The effect of a post-treatment for short time in 50 mM Ce(NO3)3 solution, with or without H2O2, on the corrosion of AA2024-T3 anodized in tartaric-sulfuric…”
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Addition of molybdate ions to the anodizing bath to improve the corrosion resistance of clad 2024-T3 alloy anodized in tartaric-sulfuric acid by Almeida, Thassia Felix de, Prada Ramirez, Oscar Mauricio, Lanzutti, Alex, Rodrigues, Cleber Lima, Brabetz, Manfred, Kremmer, Thomas M., Hammer, Peter, de Melo, Hercilio Gomes

“…In the present investigation molybdates ions (MoO4−2) were added to a tartaric‑sulfuric acid (TSA) bath, which was employed to anodize AA2024-T3 clad samples…”
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On the use of a constant phase element (CPE) in electrochemistry by Gateman, Samantha Michelle, Gharbi, Oumaïma, Gomes de Melo, Hercílio, Ngo, Kieu, Turmine, Mirelle, Vivier, Vincent

“…Several techniques can be used to experimentally determine the interfacial capacitance of an electrode, which is a crucial parameter used for quantifying the…”
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Tartaric-sulphuric acid anodized clad AA2024-T3 post-treated in Ce-containing solutions at different temperatures: Corrosion behaviour and Ce ions distribution by Prada Ramirez, Oscar Mauricio, Queiroz, Fernanda Martins, Tunes, Matheus Araujo, Antunes, Renato Altobelli, Rodrigues, Cleber Lima, Lanzutti, Alex, Pogatscher, Stefan, Olivier, Marie-Georges, De Melo, Hercílio Gomes

“…[Display omitted] •The post-treatments maintains the pores open and stabilizes the corrosion behaviour.•Ce nanoparticles have been deposited within the pores…”
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Effect of hydrolysis time on the corrosion resistance of sol-gel coated AA2024-T3 anodized in TSA by Prada Ramirez, Oscar Mauricio, Almeida, Thassia Felix de, Marin, Jayr Henrique, Suegama, Patrícia Hatsue, Starykevich, Maksim, Ferreira, Mario G.S., Ando, Rômulo Augusto, de Melo, Hercílio Gomes

“…In this study, the corrosion resistance of AA2024-T3 specimens anodized in TSA and subsequently post-treated in a Ce-H2O2 solution and sealed by a hybrid…”
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Technical Note: Syringe Cell to Avoid Crevice Corrosion on Stainless Steels During Potentiodynamic Polarization Testing by Hernández, José Wilmar Calderón, de Souza Carvalho Machado, Caruline, Costa, Isolda, de Melo, Hercílio Gomes

“…In this study, an electrochemical syringe droplet cell was developed and used to evaluate the pitting corrosion resistance of Type 304 stainless steel. The…”
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Effects of Mn and Microalloying Composition on Corrosion and Hydrogen-Induced Cracking of API 5L X65 Steels by Quispe-Avilés, Janeth Marlene, Fiori, Marco Aurélio Pereira, Hincapie-Ladino, Duberney, Ramirez, Oscar Mauricio Prada, de Melo, Hercílio Gomes

“…The corrosion and hydrogen-induced cracking (HIC) resistance as well as hydrogen permeation behavior of two API 5L X65 steels with different amounts of Mn and…”
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Electrochemical Impedance Spectroscopy in a Droplet of Solution for the Investigation of Liquid/Solid Interface by Molena de Assis, Camila, Ho, Thu Huong, de Melo, Hercilio Gomes, Keddam, Michel, Turmine, Mireille, Vivier, Vincent

“…The local electrochemical behavior of a solid–liquid interface can be studied by electrochemical impedance spectroscopy (EIS). The investigated surface area…”
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Evaluation of the influence of experimental parameters in the formation of a vinyltrimethoxysilane film on 1010 carbon steel through electrochemical impedance spectroscopy and contact angle techniques by Fernandes, Bruno Souza, da Silva Souza, Kleber Gustavo, Aoki, Idalina Vieira, de Melo, Hercílio Gomes, Amado, Franco Dani Rico

“…•New pretreatment of steel that can replace the phosphating and chromating.•Factorial design successfully assisting in the search for an effective…”
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Effect of added porosity on a novel porous Ti-Nb-Ta-Fe-Mn alloy exposed to simulated body fluid by Guerra, Carolina, Sancy, Mamié, Walczak, Magdalena, Martínez, Carola, Ringuedé, Armelle, Cassir, Michel, Han, Junsoo, Ogle, Kevin, de Melo, Hercílio Gomes, Salinas, Vicente, Aguilar, Claudio

“…Porous titanium materials have gained interest as prosthesis materials due to their similar mechanical properties to the human bone, biocompatibility, and high…”
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