2016
DOI: 10.15446/dyna.v83n197.52184
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Comportamiento de un recubrimiento bicapa de Cr/CrN bajo degradación por erosión-corrosión por ensayo de impacto con chorro

Abstract: <p>La técnica de deposición catódica fue utilizada para depositar un recubrimiento bicapa de Cr/CrN sobre acero AISI 440C. La morfología y composición del recubrimiento fueron evaluadas con microscopía electrónica de barrido y difracción de rayos-x. La dureza y adhesión del recubrimiento también fueron estudiadas. Se siguió el procedimiento de la norma ASTM G-119 para evaluar el desgaste por erosión-corrosión usando un chorro de lodo impactando a 90° a una velocidad de 4 y 8 m/s para impactar sobre el ac… Show more

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“…Based on the superior anticorrosive properties of TiN, we also investigated the corrosion resistance of TiNO coatings, as the oxygen content determines more proficient the creation of passive layers under the saline solution corrosive attack [49]. To prove the aforementioned expectation on the two isostructural coatings, we studied two bilayer structures composed of TiNO and TiN layers, considering the superior properties of bilayer structures [32,[57][58][59][60][61], in order to find the best solution for our goal, obtaining coatings adherent to SS substrate with superior resistance to corrosion [14].…”
Section: Introductionmentioning
confidence: 99%
“…Based on the superior anticorrosive properties of TiN, we also investigated the corrosion resistance of TiNO coatings, as the oxygen content determines more proficient the creation of passive layers under the saline solution corrosive attack [49]. To prove the aforementioned expectation on the two isostructural coatings, we studied two bilayer structures composed of TiNO and TiN layers, considering the superior properties of bilayer structures [32,[57][58][59][60][61], in order to find the best solution for our goal, obtaining coatings adherent to SS substrate with superior resistance to corrosion [14].…”
Section: Introductionmentioning
confidence: 99%