%0 Journal Article
%A Chyrkin, A.
%A Pillai, R.
%A Galiullin, T.
%A Wessel, E.
%A Grüner, D.
%A Quadakkers, W. J.
%T External α-Al 2 O 3 scale on Ni-base alloy 602 CA. – Part I: Formation and long-term stability
%J Corrosion science
%V 124
%@ 0010-938X
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2017-06201
%P 138-149
%D 2017
%X A multi-step oxidation treatment was developed for the NiCrAl-base alloy 602 CA to promote the growth of protective α-Al2O3 scales during exposure at 1100–1200 °C in air. Above 1000 °C, the alloy forms external chromia scales accompanied by internal alumina precipitation. On the other hand, external alumina grows on alloy 602 CA surface at 800–900 °C. The alloy specimens were pre-oxidized at 800 °C to form the external α-Al2O3 scale and further exposed at 1100 and 1200 °C. The resulting oxide scales were characterized with SEM/EDX, EBSD, and TEM. The pre-grown alumina scale demonstrated good adherence, long-term stability and healing capability.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000406570700014
%R 10.1016/j.corsci.2017.05.017
%U https://juser.fz-juelich.de/record/837226