Optimum corrosion performance using microstructure design and additive manufacturing process control
Abstract
Compatibility
of
traditional
metallic
alloys,
particularly
316L
stainless
steel,
with
additive
manufacturing
(AM)
processes,
is
essential
for
industrial
applications.
This
involves
manipulating
process
parameters
to
design
microstructural
features
at
various
length
scales,
which
enables
the
achievement
desired
physical,
mechanical,
and
chemical
properties,
leading
high-performance
components
tailored
functionalities.
In
this
study,
a
hierarchical
approach,
from
morphology
melt
pools
subgrains,
was
employed,
resulting
in
laser
powder
bed
fusion
(LPBF)
parts
subgrain
sizes
ranging
approximately
400
nm
900
nm,
confined
within
grains
about
40
µm
60
µm.
Findings
indicated
that
variations
parameters,
specifically
different
scan
strategies
constant
energy
input
60.9
J/m3,
led
production
high-density
smallest
grains/subgrains
continuous
strategy.
Additionally,
using
combination
computational
frameworks
experimental
observations,
we
developed
equations
elucidate
intrinsic
relationship
between
density
grain
size
LPBF-316L
context
two
optimal
scanning
strategies.
Furthermore,
correlation
these
designed
corrosion
behavior,
focusing
on
electrochemical
properties
components,
explored
by
key
LPBF.
The
results
revealed
possible
Hall–Petch
rate
size,
indicating
form
influence
lower
samples
grains/subgrains.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 18, 2024
Язык: Английский