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@ARTICLE{Chyrkin:824687,
author = {Chyrkin, Anton and Epishin, A. and Pillai, Rishi and Link,
T. and Nolze, G. and Quadakkers, Willem J.},
title = {{M}odelling {I}nterdiffusion {P}rocesses in {CMSX}-10/{N}i
{D}ifusion {C}ouple},
journal = {Journal of phase equilibria and diffusion},
volume = {37},
number = {2},
issn = {1547-7037},
address = {Boston, Mass.},
publisher = {Springer},
reportid = {FZJ-2016-07245},
pages = {201-211},
year = {2016},
abstract = {A diffusion couple between directionally solidified nickel
and the single crystal Ni-base superalloy CMSX-10 was
produced by hot pressing in vacuum. The diffusion couples
were heat treated at temperatures between 1050 and 1250 °C.
The exposed samples were characterized by SEM/EBSD/EPMA. The
interdiffusion results in dissolution of the γ′-Ni3Al in
the superalloy and in growth of nickel grains towards
CMSX-10. Rapid diffusion of aluminum from the superalloy
into pure nickel leads to a significant formation of pores
in the superalloy. The interdiffusion processes were
modelled using the finite-element simulation software DICTRA
with the databases TCNi5 and MobNi2, tailored specially for
Ni-base superalloys. The effect of alloying elements on the
interdiffusion profiles is discussed in terms of alloy
thermodynamics. The calculated element concentration
profiles are in good agreement with the EPMA measurements.
The interdiffusion modeling correctly predicts the shapes of
the concentration profiles, e.g. kinks on the Al and Ti
profiles in the vicinity of the original interface in the
joint. The calculation predicts with reasonable accuracy the
extent and the location of the Kirkendall porosity.},
cin = {IEK-2},
ddc = {540},
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:000372172100012},
doi = {10.1007/s11669-015-0444-9},
url = {https://juser.fz-juelich.de/record/824687},
}