Abstract
Niobium (Nb)-based alloys have been extensively used in the aerospace field owing to their excellent high-temperature mechanical properties. However, the inferior oxidation resistance severely limits the application of Nb-based alloys in a high-temperature, oxygen-enriched environment. Related scholars have extensively studied the oxidation protection of niobium alloy and pointed out that surface coating technology is ideal for solving this problem. Based on the different preparation methods of Nb-based alloys’ surface coatings, this article summarizes the relevant research of domestic and foreign scholars in the past 30 years, including the slurry sintering method (SS), suspension plasma spraying method (SPS), and halide activated pack cementation method (HAPC), etc. The growth mechanism and micromorphology of the coatings access by different preparation methods are evaluated. In addition, the advantages and disadvantages of various coating oxidation characteristics and coating preparation approaches are summarized. Finally, the coating’s oxidation behavior and failure mechanism are summarized and analyzed, aiming to provide valuable research references in related fields.
Highlights
With the human need for space exploration, the development of hypersonic vehicles has attracted wide attention worldwide [1,2]
The oxidation resistance of niobium-based alloys is lacking [12], and severe pulverization will occur when exposed to air above technology [13]
Alloying niobium and its alloys, but there are few studies on the growth mechanism and ox can improve the corrosion resistance of niobium-based alloys in high temperature and behavior of theenvironments surface coating. This extent, articlethis reviews the main preparation oxygen-enriched to a certain measure often seriously affects meth niobium andproperties its alloy of surface coatings in recent
Summary
With the human need for space exploration, the development of hypersonic vehicles has attracted wide attention worldwide [1,2]. Alloying niobium and its alloys, but there are few studies on the growth mechanism and ox can improve the corrosion resistance of niobium-based alloys in high temperature and behavior of theenvironments surface coating. This extent, articlethis reviews the main preparation oxygen-enriched to a certain measure often seriously affects meth niobium andproperties its alloy of surface coatings in recent Surfaceyears coating technology is the most effective method for enhancing the oxidation resistance of niobium-based alloys while (SS), suspension plasma spraying method (SPS), halide activated filling cem ensuring(HAPC), the substrate’s properties [13]. Preparing niobium alloy coatings will be described in detail, and the ox resistance performance of coatings
Sign-in/Register to view highlights & summary 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.
