This is the group firstly publish paper  in Corrosion Science. 

High-performance Cr2AlC MAX phase coatings: Oxidation mechanisms in the 900–1100°C temperature range

Zhenyu Wang, Guanshui Ma, Linlin Liu, Li Wang, Peiling Ke*, Qunji Xue, Aiying Wang*

Corrosion Science, 167（2020）108492 

Abstract :

Dense and predominantly single-phase Cr₂AlC MAX phase coatings without columnar structure were fabricated using an easy combined arc/sputtering deposition method followed by annealing. Isothermal oxidation of coatings was conducted under flowing air for 40 h at 900−1100 °C. Although the results revealed that the oxide scale showed strong dependence upon oxidation temperature, the coated samples remained intact even after oxidation at 1100 °C. Such excellent resistance to oxidation resulted in the parabolic kinetics exhibiting two stages. This was attributed to the formation of a dense and continuous Al₂O₃ interface layer and a (Cr, Al)₂O₃ outermost layer.

https://doi.org/10.1016/j.corsci.2020.108492