TiCrAlNbSi alloy coating is a high-temperature corrosion-resistant material. This study investigates the method of preparing high-entropy TiCrAlNbSi alloy coating on Ti6Al4V substrate and evaluates its high-temperature oxidation performance. The experiment uses an alloy target and Si target magnetron sputtering method to prepare TiCrAlNbSi alloy coating, optimizes sputtering power and other process parameters, and characterizes the structure and high-temperature resistance of the coating. The results show that the coating is dense and uniform with smooth surface, and has the characteristics of high entropy composition. In the high-temperature oxidation test, the coating exhibited good oxidation resistance, and the oxide product was dense and uniform, without obvious peeling and falling off on the surface of the coating. In summary, the method of magnetron sputtering to prepare high-entropy TiCrAlNbSi alloy coating on Ti6Al4V substrate has good high-temperature oxidation performance and has application prospects.
In this study, the drop-melting elements B and Hf were added to the alloy material for TLP diffusion welding, and the solidification behavior of IC10 alloy joint was analyzed, and the growth mechanism of γ, γ' and related compounds in TLP connection was explored. The results shows that element B was distributed in the grain boundary of the ISZ region, which increases the binding force of the grain boundary and increases the strength of the grain boundary. As a melting element, Hf element affects the liquid phase line temperature of the middle layer and makes the co-crystal liquid phase have good fluidity. The content of Hf elements has a great influence on the widening stage of the liquid phase area, which increases the dissolution amount of the base material, increases the weld width, and increases the liquid phase metal of the weld, which increases the difficulty of isothermal solidification of the weld and increases the time. When the isothermal solidification is completed, the TLP joint tissue only achieves the local tissue composition homogeneity, and continues to extend the thermal insulation time, which is conducive to the further diffusion of the alloy elements.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.