FRCU - Grupos de Investigación
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Item Wear and corrosion behaviour of short time plasma nitrocarburized AISI 316L(2024-09-02) Dalibón Bähler, Eugenia Laura; Brühl, Sonia Patricia; Jafarpour, Saeed M.; Dalke, Anke; Biermann, HorstAustenitic stainless steels are industrially used in several corrosive settings. To improve surface properties and wear resistance, different treatments can be used such as plasma nitrocarburizing or nitriding [1,2]. In this work, two short time plasma nitrocarburizing (PNC) treatments on 316L austenitic stainless steel were analyzed.Item Laser texturing combined with plasma nitriding as a tool to control the tribological performance of steel components(2018-09-28) Lasagni, Andrés Fabián; Dalibón Bähler, Eugenia Laura; Tabares, Ignacio Javier; Aguilar, Alfredo; Brühl, Sonia PatriciaIn this work the sequential combination of both plasma nitriding and laser patterning is analyzed comparing to individual treatments over the same material.Item DLC multilayers to improve fretting and corrosion resistance over nitrided martensitic stainless steel(2018-09-20) Brühl, Sonia Patricia; Dalibón Bähler, Eugenia Laura; Trava-Airoldi, Vladimir JesúsIn this work, the fretting wear and corrosion behavior of DLC multilayers coatings were studied and compared to the monolayer coating.Item Corrosion behaviour of a SiOxNy coated and nitrided ph stainles steel(Elsevier, 2015) Dalibón Bähler, Eugenia Laura; Moscatelli, Mauro Nicolás; Simison, Silvia; Escalada, Lisandro; Cabo, Amado; Lasorsa, Carlos; Brühl, Sonia PatriciaPrecipitation hardening stainless steels are used in applications where wear and corrosion resistance are required. To improve the surface properties, thermochemical treatments in combination with hard coatings can be used. In this work, the corrosion behaviour of SiOxNy coatings deposited on nitrided and non-nitrided Corrax® PH stainless steel were evaluated comparing them with the behaviour of samples which were only nitrided (two different conditions of nitrogen percentage in the working gases were used). The microstructure was analyzed. Corrosion behaviour was evaluated by the Salt Spray Fog Test and cyclic potentiodynamic polarization in NaCl solution. Erosion-corrosion tests were conducted. The thickness of the coating was about 1.4 microns, and its hardness was 2300 HV. The film had better erosion and corrosion behaviour when it was deposited on the nitrided steel. This fact demonstrated that the nitrided layer results in a good interface that improves the adhesion and mechanical support.