2003
DOI: 10.1016/s0257-8972(02)00655-2
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On the corrosion behavior of multilayered WC–Ti1−Al N coatings on AISI D2 steel

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Cited by 21 publications
(7 citation statements)
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“…Porous coatings do not assure total insulation from the surrounding corrosive environment, and do not totally inhibit the diffusion of aggressive agents through the coating, which leads to the formation of local and galvanic corrosion, and blistering of the coating. The porosity corresponds to the ratio of the polarization resistance for the uncoated and coated substrate [21]:…”
Section: Resultsmentioning
confidence: 99%
“…Porous coatings do not assure total insulation from the surrounding corrosive environment, and do not totally inhibit the diffusion of aggressive agents through the coating, which leads to the formation of local and galvanic corrosion, and blistering of the coating. The porosity corresponds to the ratio of the polarization resistance for the uncoated and coated substrate [21]:…”
Section: Resultsmentioning
confidence: 99%
“…Los recubrimientos duros PVD basados en nitruros de metales de transición incrementan significativamente el tiempo de vida útil y la calidad de servicio de los sustratos de acero, obteniendo baja fricción, mejor estabilidad térmica y mayor resistencia a la corrosión en diferentes entornos (Kot et al, 2008;Lamastra et al, 2006;Kaciulis et al, 2006). Sin embargo, el ataque del medio corrosivo puede ser severo debido a defectos del recubrimiento tales como microgrietas, poros, pinholes, límites de grano, etc., creando caminos directos de difusión al sustrato que afectan el comportamiento electro-químico de los recubrimientos (Kot, et al, 2008;Barata et al, 2001;Panjan et al, 2010;Ahn et al, 2003). Con el objetivo de minimizar estos defectos en los nanorecubrimientos, en los últimos años se han desarrollado multicapas de períodos nanométricos, es decir, el espesor de cada capa tiene un espesor menor a 100 nm, con lo que se mejoran las propiedades mecánicas y la resistencia a la corrosión respecto a las monocapas, debido a la reducción de esfuerzos residuales, grietas transversales y movimiento de las dislocaciones en los recubrimientos, con lo que se incrementa la dureza y tenacidad del recubrimiento (Kot et al, 2008;Xin et al, 2009;Rebholz et In English Several alternatives are used today for replacing electrochemical processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD) (Nordin et al, 1999).…”
Section: En Españolunclassified
“…The system leads to dense structures being obtained at low temperatures, which may increase coating/substrate lifetime when applied to high rate wear, corrosion and fatigue (Olaya et al, 2005) Metal nitride-based PVD coatings significantly increase steel substrate lifetime and service quality, thereby obtaining low friction, thermal stability and high corrosion resistance in different environments. (Ahn et al, 2003).…”
Section: En Españolmentioning
confidence: 99%
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“…Previously, superhard nanocomposite films such as WC-TiAlN [1][2][3], and WC-C [4] were synthesized, and their physical and mechanical properties were studied in detail. However, the studies on the WC-ZrN superhard nanocomposite films are scarse.…”
Section: Introductionmentioning
confidence: 99%