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this O |
porosity B-Task |
structure I-Task |
changes I-Task |
after O |
Hot B-Process |
Isostatic I-Process |
Pressing I-Process |
( O |
HIP B-Process |
) O |
treatment O |
of O |
the O |
same O |
sample O |
. O |
Aeroengine B-Task |
turbine I-Task |
disks I-Task |
often O |
consist O |
of O |
paramagnetic B-Material |
, O |
that O |
means O |
non-ferromagnetic B-Material |
Nickel I-Material |
based I-Material |
alloys I-Material |
. O |
Sometimes O |
, O |
parasitic B-Material |
small I-Material |
ferromagnetic I-Material |
particles I-Material |
can O |
be O |
included O |
in O |
these O |
disks O |
that O |
may O |
decrease B-Task |
the I-Task |
mechanical I-Task |
stability I-Task |
. O |
For O |
this O |
reason O |
, O |
in O |
case O |
of O |
a O |
suspicion O |
disks O |
are O |
to O |
be O |
analysed O |
with O |
respect O |
to O |
ferromagnetic B-Process |
inclusions I-Process |
. O |
These O |
inclusions O |
generate O |
a O |
magnetic B-Task |
density I-Task |
which O |
can O |
be O |
measured O |
by O |
a O |
flux B-Material |
gate I-Material |
magnetometer I-Material |
using O |
the O |
magnetic B-Process |
remanence I-Process |
method I-Process |
[ O |
1 O |
] O |
. O |
The O |
detection B-Process |
principle I-Process |
of I-Process |