@Article{DalibonMorGuiTraBru:2021:InSuPr,
               author = "Dalibon, Eugenia L. and Moreira, R. D. and Guitar, M. A. and 
                         Trava-Airoldi, Vladimir Jesus and Bruhl, S. P.",
          affiliation = "{Universidad Tecnol{\'o}gica Nacional (UTN-FRCU)} and 
                         {Universidad Tecnol{\'o}gica Nacional (UTN-FRCU)} and {Saarland 
                         University} and {Instituto Nacional de Pesquisas Espaciais (INPE)} 
                         and {Universidad Tecnol{\'o}gica Nacional (UTN-FRCU)}",
                title = "Influence of the substrate pre-treatment on the mechanical and 
                         corrosion response of multilayer DLC coatings",
              journal = "Diamond and Related Materials",
                 year = "2021",
               volume = "118",
                pages = "e108507",
                month = "Oct.",
             keywords = "Corrosion resistance, DLC multilayers, Martensitic stainless 
                         steel, Mechanical properties, Nitriding as pre-treatment.",
             abstract = "This work evaluates the mechanical, tribological and corrosion 
                         response of single-layer and multilayer DLC films deposited on top 
                         of martensitic stainless steel, which was previously plasma 
                         nitrided. The efficiency of plasma nitriding as pre-treatment was 
                         evaluated using a control group of samples, which was only coated 
                         under the same conditions. The pre-treated samples showed a better 
                         adhesion of both single and multi-layer DLC films, showing no 
                         signs of spallation after applying up to 50 N load during the 
                         scratch test. Fretting wear tests (ball on disk) with applied 
                         loads 40-70 N were used to evaluate the mechanical response of the 
                         different systems. The best response to fretting wear was given by 
                         the coatings deposited onto the pre-treated stainless steel 
                         substrate, showing a good mechanical stability without cracking up 
                         to 70 N load. Additionally, the corrosion resistance evaluated 
                         using step-increasing bias potentiostatic tests, turned out to be 
                         acceptable when using plasma nitriding as a pre-treatment. On the 
                         contrary, the DLC coatings on top of non- pre-treated substrates 
                         failed at a potential 400 mV lower than the 1DLC or 5DLC + N 
                         samples. Finally, it is seen that combining nitriding with DLC in 
                         the form of multilayers constituted the best protective system, 
                         since it can delay the formation of pathways between the corrosive 
                         solution and the substrate, until 2000 V bias and 3 hours duration 
                         of the experiment.",
                  doi = "10.1016/j.diamond.2021.108507",
                  url = "http://dx.doi.org/10.1016/j.diamond.2021.108507",
                 issn = "0925-9635",
             language = "en",
           targetfile = "dalibon_influence.pdf",
        urlaccessdate = "08 maio 2024"
}