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The Protection, Challenge, and Prospect of Anti-Oxidation Coating on the Surface of Niobium Alloy

机译：抗氧化涂层对铌合金表面的保护，挑战和前景

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摘要

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.
机译：由于其优异的高温机械性能，在航空航天领域广泛使用了铌（Nb）的合金。然而，较差的氧化性严重限制了高温，富氧环境中Nb基合金的应用。相关学者广泛研究了铌合金的氧化保护，并指出，表面涂层技术是解决这个问题的理想选择。基于基于Nb的合金表面涂层的不同制备方法，本文总结了过去30年的国内外学者的相关研究，包括浆料烧结方法（SS），悬浮等离子体喷涂方法（SPS），以及卤化物活性包装胶结方法（HAPC）等。评价涂层采用不同制剂方法的涂层的生长机理和微观物理。此外，总结了各种涂层氧化特性和涂层制备方法的优点和缺点。最后，总结和分析了涂层的氧化行为和失效机制，旨在提供相关领域的有价值的研究参考。

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