%0 Journal Article
%A Chyrkin, Anton
%A Pillai, Rishi
%A Ackermann, H.
%A Hattendorf, H.
%A Richter, S.
%A Nowak, Wojciech
%A Grüner, Daniel
%A Quadakkers, Willem J.
%T Modeling Carbid Dissolution in Alloy 602 CA During High Temperature Oxidation
%J Corrosion science
%V 96
%@ 0010-938X
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2015-07472
%P 32-41
%D 2015
%X The high-temperature oxidation resistance of the carbide strengthened nickel-base alloy 602 CA is provided by the formation of a protective outer Cr2O3 scale accompanied by internal precipitation of alumina and dissolution of Cr-rich carbides. The carbide free zone formation has been discussed in the literature to be a consequence of either chromium depletion or alloy decarburization.A new dissolution mechanism is proposed in this paper. Carbide dissolution in alloy 602 CA exposed to oxidizing atmospheres at 1100 °C was studied. The alloy microstructure was characterized by means of SEM/EDX/EPMA and GDOES. The experimental observations were substantiated by CALPHAD based computations.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000356121500005
%R 10.1016/j.corsci.2015.03.019
%U https://juser.fz-juelich.de/record/279588