The effect of topological design on the degradation behavior of additively manufactured porous zinc alloy
Abstract
The
advent
of
additively
manufactured
biodegradable
porous
metals
presents
a
transformative
opportunity
to
meet
the
criteria
ideal
bone
substitutes.
Precisely
tailoring
their
degradation
behavior
constitutes
pivotal
aspect
this
endeavor.
In
study,
for
first
time,
we
investigated
effects
topological
designs
on
profile
laser
powder
bed
fusion
(LPBF)
Zn
scaffolds
under
dynamic
in
vitro
immersion
tests.
Specifically,
four
types
Zn-0.4Mn-0.2Mg
(beam-based:
diamond,
face
center
cubic;
surface-based:
gyroid,
schwarz-P)
were
designed
and
fabricated.
mechanism
was
comprehensively
evaluated
using
both
experimental
simulation
methods.
results
illuminate
profound
impact
structural
design
properties
alloy
scaffolds.
beam-based
diamond
cubic
exhibited
rate
0.5–0.8
mm/year
with
relatively
uniform
mode
immersion.
On
contrary,
surface-based
gyroid
Schwarz-P
demonstrated
notably
reduced
due
lower
permeability.
This
restricted
diffusion
medium
ions
within
pores,
culminating
in
accumulation
products
more
severe
localized
degradation.
study
underscores
potential
as
compelling
strategy
scaffolds,
thereby
advancing
suitability
Research Square (Research Square), Год журнала: 2023, Номер unknown
Опубликована: Окт. 19, 2023
Язык: Английский