Hydrothermal corrosion of TiN PVD films on SUS-304
Source abstract
Abstract
Abstract Hydrothermal corrosion of thin TiN PVD films (3 μm thickness) at 100 MPa water and 20–800 °C temperature range was studied. Noticeable oxidation starts above 200 °C and acceleration of oxidation processes takes place in hydrothermal conditions in comparison with airflow oxidation of corresponding PVD films and air oxidation of TiN powders. The formation of Ti n O 2 n −1 homological series phases and regular single crystals in oxide scale were observed. FeTiO 3 ilmenite layer secures high protective properties at 600 °C and practically does not contain chromium. Therefore, usual low alloy steel with TiN coating can be used instead superalloy for wet air oxidation system with working temperature up to 600 °C.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Semiconductor materials and devices · High-Temperature Coating Behaviors
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References (27)
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