@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 = "26 abr. 2024"
}