Thermal Spraying
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Avaliação tribológica de óleos hidráulicos biodegradável e mineral com deslizamento entre as ligas de Cu-Zn e WC-CoCr
RESUMO A correta seleção dos óleos lubrificantes e das superfícies de contato melhoram o desempenho e reduzem o consumo de energia das máquinas Por isso, a engenharia de superfícies propõe novos revestimentos aos quais seu comportamento tribológico combinado com o uso de óleos biodegradáveis em componentes de sistema hidráulicos, não são conheci
Matéria (Rio J.). Publicado em: 25/11/2019
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2. Surface, microstructural, and adhesion strength investigations of a bioactive hydroxyapatite-titanium oxide ceramic coating applied to Ti-6Al-4V alloys by plasma thermal spraying
Ti-6Al-4V alloy is employed in implants because of its good mechanical strength, excellent biocompatibility, and good resistance to corrosion in biological environments. Herein, a composite (HAp-TiO2, 50% by volume of both components) coating surface employing Ti-6Al-4V was characterized. Samples were analyzed post fabrication and post heat treatment to anal
Mat. Res.. Publicado em: 28/05/2018
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3. Thermal Spraying Processes and Amorphous Alloys: Macro-Indicators of Patent Activity
Thermal spraying processes allows high cooling rates and can favor the formation of amorphous microstructures. Amorphous metallic coatings can result in superior mechanical and functional properties. To follow new technological development and innovation paths, indicators based on patent data can be assembled to support technological forecasting assessments
Mat. Res.. Publicado em: 04/12/2017
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4. Assessing Collaboration and Knowledge Flow on Coatings of Metallic Glasses Obtained From Thermal Spraying Processes Using Bibliometrics and Science Mapping
Coatings of amorphous metallic alloys can be obtained using different thermal spraying processes, such as HVOF, plasma spraying, cold spraying and others. Although many studies focused on investigating scientific issues concerning apply amorphous metallic coatings using thermal spraying, less attention have been paid to evaluate how research institutes and c
Mat. Res.. Publicado em: 13/11/2017
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5. Estudio de la estructura y las propiedades mecánicas en un recubrimiento de circona estabilizada con 8% en mol de itria elaborado por proyección térmica por plasma a partir de suspensiones
The study of nanostructured coatings manufactured by thermal spraying has generated a great interest in the last two decades due to their considerable improved properties especially in the physical and mechanical properties. This improvement is to reduce grain sizes of their raw materials at scales of 100-1000 times lower compared to conventional coatings (m
Matéria (Rio J.). Publicado em: 2016-03
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6. Elaboración de recubrimientos cerámicos mediante proyección térmica por combustión a partir de residuos sólidos industriales
Ceramic coatings were elaborated onto carbon steel substrates by oxy-fuel thermal spraying process from catalysts waste used in petroleum refining. The adhesion and micro-hardness Vickers were evaluated according to ASTM C633-01(2008) and ASTM C1327-08 standards respectively, with adhesion values varying between 2,9 and 17,7 MPa and values of microhardness V
Matéria (Rio J.). Publicado em: 2012
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7. Produção de recobrimentos metálicos a partir de ligas de ferro amorfizáveis / Production of metallic coatings based on amorphous iron alloys
The aim of this work was to study the production of metal coatings from amorphous alloy Fe-25Cr-7Ni-4,5B (wt.%), with special focus on mechanical and microstructure properties. Initially, preliminary studies were made through the production of ribbons and bulks of metallic alloys Fe-25Cr-7Ni-XB (X = 3.5, 4.5, 5.5 wt.%) for the evaluation of amorphous phase f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/10/2011
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8. Wear, friction, and microhardness of a thermal sprayed PET: poly (ethylene terephthalate) coating
The effects of combustion thermal spraying parameters namely combustion pressure, feeding rate, and carrier gas on the wear resistance, friction coefficient, and Knoop hardness of poly (ethylene terephthalate) (PET) films were investigated. The PET coatings were characterized by measuring the wear coefficients by calowear-type testing, the friction coefficie
Materials Research. Publicado em: 2009-06
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9. Efeitos da adição de carbonetos na resistência ao desgaste e à corrosão de uma liga auto-fluxante depositada por aspersão térmica / Effect of carbides addition in the wear and corrosion resistance of a sell-fluxing coating deposited by thermal spraying
Neste trabalho, visando-se melhorar o desempenho ao desgaste e/ou à corrosão de revestimentos de ligas auto-fluxantes, amostras de aço SAE 1020 foram revestidas pelo processo de aspersão térmica, sendo que uma delas foi revestida apenas com uma liga auto-fluxante a base de níquel (NI"CR"B"SI"C) e outras duas, às quais aplicou-se essa liga com adiçõe
Publicado em: 2009
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10. Microstructure and mechanical properties of thermal sprayed nanostructured Cr3C2-Ni20Cr coatings
Cr3C2-Ni20Cr coatings have been used for corrosion and wear resistant applications. However, one of the shortcomings of these coatings is its low hardness, and consequent low wear resistance, for long term high temperature applications. Nanostructured coatings of many materials have exhibited higher hardness and strength compared with conventional coatings o
Materials Research. Publicado em: 2008-06
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11. Abrasão, desgaste e atrito sob deslizamento de recobrimentos preparados por aspersão térmica a partir de PET pós-consumo
This work intends to contribute to the development of polymer coatings by combustion thermal spraying of recycled poly(ethylene terephthalate) PET for the improvement of the tribological behavior of carbon steel piping. Coatings with high wear resistance may reduce corrosion, the formation of organic and inorganic deposits, and the friction of the transporte
Publicado em: 2008
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12. Análise e avaliação dos elementos de penetração no solo de equipamentos rodoviários após revestimento
O objetivo principal do trabalho é analisar a resistência ao desgaste abrasivo à baixa tensão dos elementos que compõem os órgãos de máquinas rodoviárias que estão expostos diretamente ao contato com abrasivos. Estas análises foram efetuadas após estes elementos serem revestidos superficialmente pelo processo de soldagem com eletrodo revestido (S
Publicado em: 2008