High-Nb TiAl alloy

<1 mg/cm² gain at 900°C

W, B, Y, C/Si additions suppress TiO₂ growth and promote Al₂O₃ formation with spallation-resistant oxide scale.

Sun, Tielong · Guo, Zhichao · Jun, Cao · Liang, Yongfeng · Lin, Junpin

Corrosion Science 2023

Specifications

Weight gain

{'zh': '<1', 'en': '<1'} mg/cm² after

Advantages

Alloying elements refine grain size and reduce oxygen activity

Oxide pegs improve adhesion between oxide scale and substrate