Facultad Regional Concep. del Uruguay
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Item Resistencia al desgaste y corrosión de AISI 316L nitrurado por plasma y recubierto con TiN(2014-05-15) Vaca, Laura Silvia; Brühl, Sonia Patricia; Márquez, Adriana Beatriz; Manova, DarinaEn este trabajo se presentan los resultados de desgaste y corrosión realizados sobre acero AISI 316L nitrurado por plasma y recubierto con nitruro de titanio con la técnica de PVD por arco de plasma.Item Corrosion behavior of AISI 316L coated with Ti-TiN by vacuum arc deposition(2014-09-28) Vaca, Laura Silvia; Brühl, Sonia Patricia; Márquez, Adriana Beatriz; Fazio, Mariana AndreaTi-TiN bilayer coatings on stainless steel have been proposed to improve not only hardness but also corrosion resistance. In this work the corrosion behavior of nitride AISI 316L samples coated with Ti-TiN employing a vacuum arc is presented, corrosion results obtained from only nitrided and non-treated samples are compared.Item Microstructure and corrosion behavior of TiN coatings deposited on nitrided stainless steel by PBII&D(2015-10-09) Vaca, Laura Silvia; Brühl, Sonia Patricia; Márquez, Adriana BeatrizIn this work, Ti-TiN bilayer coatings obtained by PBII&D on nitrided austenitic stainless steel in order to improve not only hardness but also corrosion resistance compared with the samples which were only nitrided.Item Microstructure and wear behavior of TiN coatings deposited on nitrided stainless steel by PBII&D(2017-09-14) Vaca, Laura Silvia; Quintana, Juan Pablo; Vega, Daniel; Moscatelli, Mauro Nicolás; Dalibón Bähler, Eugenia Laura; Brühl, Sonia Patricia; Márquez, Adriana BeatrizThis work presents the wear behavior of TiN coatings obtained by cathodic arc discharge combined with implantation and temperature on AISI 316L stainless steel previously ion nitrided.Item Tribological and corrosion Behavior of Duplex Coated AISI 316L using plasma based ion implantation and deposItion(2020) Vaca, Laura Silvia; Quintana, Juan Pablo; Vega, Daniel; Márquez, Adriana Beatriz; Brühl, Sonia PatriciaThe implementation of a duplex process, which combines plasma nitriding with hard coatings obtained by cathodic arc, on stainless steel substrates has faced adhesion problems that affected the wear and corrosion behavior of the treated surfaces. One variation of the cathodic arc process, which could improve the adhesion, is its combination with plasma ion implantation. This work presents results of the wear and corrosion behavior of duplex TiTiN bilayer coatings obtained by cathodic arc deposition combined with ion implantation (PBII&D) on plasma nitrided AISI 316L stainless steel In order to compare the application of PBII&D in duplex processes against conventional cathodic arc deposition, other two types of samples were obtained; one group of samples was coated using the same experimental device with the substrate at floating potential and the other one with a commercial PVD system. The coatings were characterized by SEM, XRD, and nanoindentation. The adhesion was evaluated by the Scratch Test and Rockwell C indentation. The wear resistance was analyzed by the pin-on-disk test and the corrosion behavior was evaluated by means of anodic polarization tests in NaCl solution, as well as by the Salt pray Fog Test. The PBII&D bilayer coatings showed better adhesion while the commercial PVD TiN coatings presented the smallest wear volume loss, but the delamination inside and around the track evidenced adhesion problems. Corrosion resistance was improved in all coatings benchmarked against nitride substrates, but PBII&D processes offered better protection.