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@ARTICLE{Galiullin:851202,
author = {Galiullin, T. and Chyrkin, A. and Pillai, R. and Vassen, R.
and Quadakkers, W. J.},
title = {{E}ffect of alloying elements in {N}i-base substrate
material on interdiffusion processes in {MC}r{A}l{Y}-coated
systems},
journal = {Surface and coatings technology},
volume = {350},
issn = {0257-8972},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2018-04902},
pages = {359 - 368},
year = {2018},
abstract = {The effect of alloying elements in the substrate on the
interdiffusion processes between a NiCoCrAlY-coating and
model Ni-base superalloys was studied. Four single-crystal
substrates Ni-10Cr-8Al-X $(wt\%,$ X = 10Co, 9Ta, 6 W)
were coated with a conventional NiCoCrAlY-coating and
exposed to air for up to 1000 h at 1050 °C. The
microstructural analyses (LOM/SEM/EDX) revealed a strong
dependence of the coating degradation rate on the substrate
composition. The coating applied to the ternary base
Ni-10Cr-8Al alloy and to the quaternary Co-containing
substrate degraded most rapidly while the Ta addition to the
substrate effectively suppressed interdiffusion. The
degradation phenomena such as β-NiAl depletion and
propagation of the secondary reaction zone (SRZ) were
interpreted in terms of a thermodynamical analysis in
Thermo-Calc and by using a CALPHAD-based
thermodynamic-kinetic diffusion model.},
cin = {IEK-1 / IEK-2},
ddc = {620},
cid = {I:(DE-Juel1)IEK-1-20101013 / 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:000444660500034},
doi = {10.1016/j.surfcoat.2018.07.020},
url = {https://juser.fz-juelich.de/record/851202},
}