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@ARTICLE{Bauer:224487,
author = {Bauer, Alexander and Neumeier, Steffen and Pyczak, Florian
and Göken, Mathias},
title = {{I}nfluence of {I}ridium on the {P}roperties of
$\gamma$′-{S}trengthened {C}o-{B}ase {S}uperalloys},
journal = {Advanced engineering materials},
volume = {17},
number = {6},
issn = {1438-1656},
address = {Weinheim},
publisher = {Wiley-VCH Verl.},
reportid = {PUBDB-2015-03598},
pages = {748 - 754},
year = {2015},
abstract = {The influence of iridium on the phase stability, oxidation
behavior, and high temperature creep strengthof g0-hardened
Co-base superalloys is discussed. Ir increases the g0-solvus
temperature and g0-volumefraction since it partitions
slightly to the g0-phase. However, Ir leads also to a
discontinuousprecipitation transformation of the metastable
g/g0-microstructure into a lamellar microstructure ofCo3W,
CoAl, and a Co-rich fcc phase for the W-rich alloys. A
reduction ofWin presence of Ir leads to ahigher phase
stability. The constrained lattice misfit between the g and
g0 phase in the Ir and high Wcontaining alloy is $þ0.5\%.$
The alloying element Ir strongly increases the creep
strength at 850 °C aslong as the g/g0-microstructure is not
discontinuously transformed. Furthermore, the
oxidationresistance is improved by the addition of iridium.},
cin = {HZG},
ddc = {540},
cid = {I:(DE-H253)HZG-20120731},
pnm = {6G3 - PETRA III (POF3-622)},
pid = {G:(DE-HGF)POF3-6G3},
experiment = {EXP:(DE-H253)P-P07-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000356372500002},
doi = {10.1002/adem.201400266},
url = {https://bib-pubdb1.desy.de/record/224487},
}