Affiliation:
1. Ningxia Orient Tantalum Industry Co., Ltd , Shizuishan , 753000 , China
Abstract
Abstract
Nb–Ti–Al base alloy is an important structural material with low density and high temperature. However, as with other niobium alloys, the weak oxidation resistance is the bottleneck of its engineering application. Surface coating technology is considered an ideal method to solve the oxidation resistance of Nb–Ti–Al-based alloys. In this article, the progress of research on high-temperature antioxidation silicide coatings on Nb–Ti–Al alloy in recent years is reviewed. The microstructure, phase composition, and oxidation properties of different silicide coatings are analyzed. The failure mechanism and applications of Nb–Ti–Al-based alloy silicide coating are summarized. The existing problems and future development of Nb–Ti–Al-based alloy silicide coatings are analyzed and prospected.
Reference48 articles.
1. Distl, B., K. Hauschildt, F. Pyczak, and F. Stein. Solid-solid phase transformations and their kinetics in Ti-Al-Nb alloys. Metals, Vol. 11, No. 12, 2021, id. 1991.
2. Valkov, S., R. Bezdushnyi, and P. Petrov. Synthesis, structure and mechanical properties of Ti-Al-Nb coatings formed by electron beam additive technique. Vacuum, Vol. 156, 2018, pp. 140–145.
3. Zhang, X. J. Microstructures and properties study on Nb-based composites of Nb-Ti-C-B system and their oxidation resistance coatings, PhD dissertation, Harbin Institute of Technology, 2014.
4. Ren, J. S. Oxidation behavior of an advanced niobium-silicide based ultrahigh-temperature alloy and preparation of its oxidation-resistant coatings, PhD dissertation, Northwestern Polytechnical University, 2006.
5. Wu, J., W. Wang, and C. Zhou. Microstructure and oxidation resistance of Mo-Si-B coating on Nb based in situ composites. Corrosion Science, Vol. 87, 2014, pp. 421–426.