Title of article :
Arc ion plated-Cr2O3 intermediate film as a diffusion barrier between NiCrAlY and γ-TiAl
Author/Authors :
Cheng، نويسنده , , Y.X. and Wang، نويسنده , , W. and Zhu، نويسنده , , S.L. and Xin، نويسنده , , L. and Wang، نويسنده , , F.H.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
The effectiveness of an arc ion plated-Cr2O3 intermediate film as a diffusion barrier between NiCrAlY and γ-TiAl was evaluated by annealing at 1000 °C. The results showed that Cr2O3 acted as an active diffusion barrier by formation of two continuous Al-rich oxide layers at both the TiAl/Cr2O3 and Cr2O3/NiCrAlY interfaces, suppressing the inward diffusion of Ni from NiCrAlY overlay coating to γ-TiAl substrate effectively.
Keywords :
A. Titanium aluminides , based on TiAl , B. Diffusion , B. Oxidation , C. Vapour deposition
Journal title :
Intermetallics
Journal title :
Intermetallics
