Previous research has inadequately elucidated the influence of Nb addition on the tensile properties and oxidation resistance of Ti-based alloys. Herein, the tensile properties and oxidation resistance of Ti–6Al–2Sn–4Zr–2Mo–0.1Si–1.0B–xNb (x = 0, 0.2, and 1.0) alloys were investigated. The oxidation resistance was significantly improved by Nb addition without significantly influencing the tensile properties. The substitution of Ti⁴⁺ by Nb⁵⁺ in TiO₂ and promoted formation of a Sn-rich layer between the oxidation layer and substrate caused an increase in the oxidation resistance, thus highlighting the effectiveness of Nb addition in enhancing the oxidation resistance.

先前的研究不足以阐明添加Nb对Ti基合金的拉伸性能和抗氧化性的影响。在这里，研究了Ti-6Al-2Sn-4Zr-2Mo-0.1Si-1.0B-xNb（x = 0、0.2和1.0）合金的拉伸性能和抗氧化性。通过添加Nb可以显着提高抗氧化性，而不会显着影响拉伸性能。TiO _2中的Nb ⁵⁺替代Ti ⁴⁺并促进在氧化层和衬底之间形成富Sn层导致了抗氧化性的提高，从而突出了添加Nb在增强抗氧化性方面的有效性。