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akumar33
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manufacturing

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state E-CONPRI
predictions S-CONPRI
from O
the O
Rosenthal B-CONPRI
equation E-CONPRI
. O
It O
is O
shown O
that O
the O
transient S-CONPRI
effects O
of O
the O
scan O
strategy O
create O
significant O
variations S-CONPRI
in O
the O
melt B-MATE
pool E-MATE
geometry S-CONPRI
and O
solid-liquid B-CONPRI
interface I-CONPRI
velocity E-CONPRI
, O
especially O
as S-MATE
the O
thermal B-CONPRI
diffusivity E-CONPRI
of O
the O
material S-MATE
decreases O
and O
the O
pre-heat S-CONPRI
of O
the O
process S-CONPRI
increases O
. O
With O
positive O
verification S-CONPRI
of O
the O
strategy O
, O
the O
model S-CONPRI
was O
then O
experimentally B-CONPRI
validated E-CONPRI
to O
simulate O
two O
point-melt S-CONPRI
scan O
strategies O
during O
electron B-MANP
beam I-MANP
melting E-MANP
of O
IN718 S-MATE
, O
one O
intended O
to O
produce O
a O
columnar O
and O
one O
an O
equiaxed B-CONPRI
grain E-CONPRI
structure O
. O
Through O
comparison O
of O
the O
solidification S-CONPRI
conditions O
( O