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@ARTICLE{Ebrahimzade:875307,
author = {Ebrahimzade, V. and Uchtmann, H. and Singheiser, L. and
Küger, M. and Malzbender, J.},
title = {{M}icrostructure and cyclic oxidation behavior of {APS}
{TBC} systems drilled with various laser methods},
journal = {Surface and coatings technology},
volume = {378},
issn = {0257-8972},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2020-01938},
pages = {125018 -},
year = {2019},
abstract = {Aiming towards an optimization of drilling of cooling holes
for gas turbine applications, thermal barrier coated
specimens were drilled with different laser set-ups. The
investigated TBC system consists of an APS deposited TBC
systems, a MCrAlY bond coating (BC), and a Nickel-based
super alloy. The microstructural analysis was performed
after laser drilling and also cyclic oxidation tests, in
order to understand the influence of different laser
drilling parameters, i.e. trepanation/percussion drilling,
long-pulsed and ultra-short pulsed lasers, and hole angle.
Aiming towards this, the first test series consisted of an
assessment of specimens that were laser drilled with
different parameters which were only analyzed regarding
microstructural aspects, whereas the second series was based
on specimens that were laser drilled with various laser
parameters which were subsequently tested by cyclic
oxidization experiments. Initiation and progress of
delamination as function of the number of cycles was
assessed from thermography images and correlated with
complementary finite element analysis.},
cin = {IEK-2},
ddc = {670},
cid = {I:(DE-Juel1)IEK-2-20101013},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113)},
pid = {G:(DE-HGF)POF3-113},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000503100800071},
doi = {10.1016/j.surfcoat.2019.125018},
url = {https://juser.fz-juelich.de/record/875307},
}