% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Giese:863562,
author = {Giese, Sven and Neumeier, Steffen and Amberger-Matschkal,
Doris and Bergholz, Jan and Vaßen, Robert and Göken,
Mathias},
title = {{M}icrotensile creep testing of freestanding {MC}r{A}l{Y}
bond coats},
journal = {Journal of materials research},
volume = {34},
number = {15},
issn = {2044-5326},
address = {Cambridge [u.a.]},
publisher = {Cambridge Univ. Press},
reportid = {FZJ-2019-03601},
pages = {2643-2652},
year = {2019},
abstract = {Bond coats are essential in gas turbine technology for
oxidation protection. Freestanding MCrAlY (M = Ni, Co) bond
coats were investigated with respect to their creep strength
at elevated temperatures. Three types of MCrAlY, a Ni-based
bond coat Amdry 386, a Co-based bond coat Amdry 9954 and
Amdry 9954 + 2 $wt\%$ Al2O3 (ODS = oxide dispersion
strengthened) produced by low pressure plasma spraying, were
analyzed. The two phase microstructure of the bond coats
consists of a fcc γ-Ni solid solution and a B2 β-NiAl
phase. Constant load experiments were performed in a
thermomechanical analyzer at temperatures between 900 and
950 °C. Microtensile test specimens with a diameter of 450
µm were produced by a high-precision grinding and polishing
process. Creep rupture was mainly due to void nucleation
along the β–γ interfaces and grain boundaries. The time
to failure is larger in Ni-based Amdry 386 compared to that
in Co-based Amdry 9954 due to a higher fraction of the
high-strength β-NiAl phase at test temperatures. The
addition of ODS-particles in the Co-based bond coat Amdry
9954 resulted in a better creep resistance but lower
ductility in comparison to ODS-particle-free Amdry 9954.},
cin = {IEK-1},
ddc = {670},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113)},
pid = {G:(DE-HGF)POF3-113},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000482958400008},
doi = {10.1557/jmr.2019.169},
url = {https://juser.fz-juelich.de/record/863562},
}