The Pressure Influence on the Properties of S-Phase Coatings Deposited by Reactive Magnetron Sputtering

Abstract

Reactive magnetron sputtering of austenitic stainless steel in nitrogen containing atmosphere was used to deposit coatings composed of S-phase. The process was conducted at constant temperature (200 • C). The inuence of total and partial nitrogen pressure on coating characteristics was investigated. It was observed that both total and nitrogen partial pressures have inuence on coating composition and microstructure. Increasing nitrogen content in the S-phase coating can have a benecial eect on its corrosion characteristics. It was also found that coatings deposited in the ambient of high nitrogen contents are composed of S-phase and the additional high--nitrogen phase, which is of crucial inuence on mechanical properties of the coatings. It was also found that partial argon pressure can contribute to the changes in mechanical properties of the coatings.

Corrosion properties of S-phase layers formed on medical grade austenitic stainless steel

“…Los recubrimientos depositados en un ambiente con alto contenido de nitrógeno están compuestos de la fase S y la fase adicional de alto contenido de nitrógeno, que influye significativamente en las propiedades mecánicas de los recubrimientos y en la resistencia a la corrosión. Adicionalmente, se encontró que la presión parcial de argón puede contribuir a los cambios en las propiedades mecánicas de los recubrimientos [67].…”