%0 journal article
%@ 0010-938X
%A Liang, Z.,Göken, M.,Lorenz, U.,Neumeier, S.,Oehring, M.,Pyczak, F.,Stark, A.,Wang, L.

%D 2021
%J Corrosion Science
%N 
%P 109388 
%R doi:10.1016/j.corsci.2021.109388
%T Influence of small amounts of Si and Cr on the high temperature oxidation behavior of novel cobalt base superalloys
%U https://doi.org/10.1016/j.corsci.2021.109388
 
%X The effect of small amounts of Si and Cr on the high temperature oxidation of alloys based on Co-9Al-9W was investigated at 900 °C. The results show that the effect of Si additions on oxidation resistance was more pronounced than for Cr additions. An addition of 4 at.% Cr was insufficient to produce a protective layer, while 2 at.% Si led to the formation of a dense, continuous Al2O3 scale. The thermodynamics and kinetics for Al2O3 layer formation were analyzed by combining CALPHAD and Wagnerʼs theory.