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60 O
% O
. O
The O
components S-MACEQ
with O
optimized O
support B-FEAT
structures E-FEAT
no O
longer O
suffer O
from O
stress-induced B-CONPRI
cracking E-CONPRI
after O
the O
designs S-FEAT
are O
realized O
by O
AM S-MANP
, O
which O
proves O
the O
effectiveness S-CONPRI
of O
the O
proposed O
method O
. O
Additive S-MATE
friction O
stir O
deposition S-CONPRI
( O
AFSD O
) O
is O
an O
emerging O
solid-state S-CONPRI
metal B-MANP
additive I-MANP
manufacturing E-MANP
technology O
renowned O
for O
strong O
interface S-CONPRI
adhesion S-PRO
and O
isotropic S-PRO
mechanical O
properties S-CONPRI
. O
This O
is O
postulated O
to O
result O
from O
the O
material S-MATE
flow O
phenomena O
near O
the O
interface S-CONPRI
, O
but O
experimental S-CONPRI
corroboration O
has O
remained O
absent O
. O
Here O
, O
we O
seek O
to O
understand O
the O
interface S-CONPRI
formed O
in O
AFSD O
via O
morphological O
and O