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@ARTICLE{Jalowicka:841331,
author = {Jalowicka, A. and Nowak, W. J. and Naumenko, D. and
Quadakkers, W. J.},
title = {{E}ffect of {SO}2 {A}ddition on {A}ir {O}xidation
{B}ehavior of {CM}247 and {CMSX}-4 at 1050°{C}},
journal = {JOM},
volume = {68},
number = {11},
issn = {1543-1851},
address = {New York, NY},
publisher = {Springer Science + Business Media},
reportid = {FZJ-2017-08416},
pages = {2776 - 2785},
year = {2016},
abstract = {In the present work, the oxidation behavior of two
commercial Ni-base superalloys, CMSX-4 and CM247, in
synthetic air with and without 2 $vol.\%$ SO2 at 1050°C has
been studied. The corrosion reactions in the presence of SO2
could not be explained simply in terms of the contents of
the main scale‐forming alloying elements, Cr and Al. The
far better resistance of CMSX-4 is related to the formation
of a rather pure and dense alumina scale after a very short
period of transient oxidation. Rapid development of an
alumina scale prevents access of molecular SO2 to the metal
surface thus effectively suppressing internal sulfidation.
In contrast, CM247 with a similar Al-content formed an
Al-rich oxide scale with local intrusions and/or
inhomogeneities caused by the underlying alloy
microstructure, which deteriorated its resistance to
internal sulfidation and resulted in rapid failure in
synthetic air + $2\%$ SO2.},
cin = {IEK-2},
ddc = {670},
cid = {I:(DE-Juel1)IEK-2-20101013},
pnm = {111 - Efficient and Flexible Power Plants (POF3-111)},
pid = {G:(DE-HGF)POF3-111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000388816100012},
doi = {10.1007/s11837-016-2072-1},
url = {https://juser.fz-juelich.de/record/841331},
}