Abstract
Recently, multicomponent TiAlSiN coatings have been developed in order to possess high hardness and good thermal stability at a temperature exceeding 800 °C. In this study, a series of TiAlSiN coatings were synthesized with different ratios of Al 0.89Si 0.11/(Ti + Al 0.89Si 0.11) cathode current by using a cathodic arc evaporation system with lateral rotating arc sources. The high temperature oxidation behavior of TiAlSiN coatings with different (Al + Si)/(Ti + Al + Si) content ratios was investigated. Higher Al 0.89Si 0.11/(Ti + Al 0.89Si 0.11) cathode current ratio facilitated higher Al and Si contents. From the thermal-gravimetric analysis, the deposited TiAlSiN coating with (Al + Si)/(Ti + Al + Si) content ratio of 0.23 showed a weight gain starting at ∼ 900 °C. The TiAlSiN with a smaller grain size and a higher (Al + Si)/(Ti + Al + Si) content ratio possessed a lower oxidation rate by forming a protective oxide layer, mainly consisted of Al 2O 3, which inhibited further oxygen diffusion into the coating. The TiAlSiN coating with the highest (Al + Si)/(Ti + Al + Si) content ratio possessed the highest onset temperature at 1115 °C and the lowest oxidation rate.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
