Fechar
Metadados

@Article{RamosFlorTrav:2014:EvTrRe,
               author = "Ramos, Marco Antonio Ramirez and Flores, Jon Jairo Olaya and 
                         Trava-Airoldi, Vladimir Jesus",
          affiliation = "{Universidad Nacional de Colombia} and {Universidad Nacional de 
                         Colombia} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Evaluacion tribologica de recubrimientos de NbC y VC sobre acero 
                         AISI D2 producidos por la tecnica deposicion difusion 
                         termo-reactiva (DTR)",
              journal = "Ingenieria, Investigacion y Tecnologia",
                 year = "2014",
               volume = "16",
               number = "2",
                pages = "287--294",
                month = "abr./jun.",
                 note = "{Setores de Atividade: Pesquisa e desenvolvimento 
                         cient{\'{\i}}fico.}",
             keywords = "carburo de niobo, carburo de vanadio, desgastecoeficiente de 
                         fricci{\'o}n deposici{\'o}n difusion termo-reactiva, 
                         recumbrimientos, niobium carbide, vanadium varbide, wear, 
                         coefficient of friction, thermo-reactive deposition diffusion, 
                         coating.",
             abstract = "En este trabajo se obtuvieron recubrimientos de carburos de 
                         vanadio (VC) y carburos de niobio (NbC) sobre aceros para 
                         herramientas de la norma AISI D2 usando el sistema de 
                         deposici{\'o}n difusi{\'o}n termo reactiva (DTR). Los 
                         experimentos se realizaron en baņo de sal (b{\'o}rax Na2B4O7 - 
                         10H2O) con disoluci{\'o}n de ferro-niobio, ferro-vanadio y 
                         aluminio a una temperatura de tratamiento de 1000°C durante 3 
                         horas. Los recubrimientos obtenidos se caracterizaron mediante 
                         microscop{\'{\i}}a electr{\'o}nica de barrido (MEB) y 
                         difracci{\'o}n de rayos X (DRX). El comportamiento 
                         tribol{\'o}gico se estudi{\'o} por la t{\'e}cnica de esfera 
                         sobre disco para determinar el coeficiente de fricci{\'o}n (COF) 
                         y la t{\'e}cnica de rayado para determinar el nivel adherencia. 
                         Los resultados se compararon con los substratos sin recubrimiento, 
                         el recubrimiento logr{\'o} disminuir el coeficiente de 
                         fricci{\'o}n y aumento en la dureza del sistema debido a su 
                         naturaleza cer{\'a}mica. ABSTRACT: In this work vanadium carbides 
                         (VC) and niobium carbide (NbC) coatings were produced on AISI D2 
                         tool steels system using the thermo reactive deposition diffusion 
                         technique (TRD). The experiments were performed in a salt bath 
                         (borax) with dissolution of ferro-niobium, ferro-vanadium and 
                         aluminium at temperature treatment of 1000°C during 3 hours. The 
                         coatings obtained were characterized by scanning electron 
                         microscopy and X-ray diffraction. The tribological behavior was 
                         studied by the technique of pin on disc to define the coefficient 
                         of friction and scratch technique to determine the adhesion level. 
                         Results were compared with uncoated substrates, a decrease of the 
                         friction coefficient and an increase in the hardness was 
                         observed.",
                 issn = "1405-7743",
                label = "lattes: 3455204481678421 3 RamosFlorTrav:2014:EvTrRe",
             language = "pt",
        urlaccessdate = "28 nov. 2020"
}


Fechar