Surface Topography Metrology and Properties,
Journal Year:
2024,
Volume and Issue:
12(3), P. 035035 - 035035
Published: Aug. 27, 2024
Abstract
The
Microarc
Oxidation
(MAO)
layer
on
titanium
alloy
was
mainly
composed
of
TiO
2
,
and
there
were
some
defects,
such
as
holes
cracks,
which
made
the
performance
MAO
not
ideal.
To
enhance
properties
layer,
carbide
(TiC)
particles
added
to
electrolyte
a
phosphate–silicate
system
an
additive.
Consequently,
layers
containing
TiC
phase
Ti6Al4V
produced.
process,
composition,
microstructure,
hardness
comprehensively
analyzed.
Their
frictional
assessed
under
reciprocating
friction
conditions
without
lubrication.
findings
suggested
that
in
played
significant
role
creating
enhancing
its
thickness.
produced
primarily
two
different
mineral
forms
(rutile
anatase).
Adding
resulted
presence
within
thereby
facilitating
formation
reinforced
oxide
layer.
This
addition
also
led
improvement
densification
reduction
porosity.
Notably,
corrosion
resistance
testing
indicated
incorporating
6
g
l
−1
into
superior
compared
with
obtained
from
base
alone
by
achieving
1.4
times
higher
resistance.
Moreover,
value
690
HV
for
attained
at
content
level
9
TiC,
demonstrating
65%
enhancement
finding
demonstrated
significantly
enhanced
property
wear-volume
0.81
mm
3
.
relationship
between
preparation
structure
can
provide
valuable
guidance
designing
preparing
Journal of Materials Research and Technology,
Journal Year:
2024,
Volume and Issue:
31, P. 1282 - 1303
Published: June 22, 2024
The
study
demonstrated
the
Ca,
P,
and
Zn-doped
ZrO2/TiO2
coating
layer
via
plasma
electrolytic
oxidation
(PEO)
radiofrequency
magnetron
sputtering
(RF-MS)
for
improving
surface
characteristics
biocompatibility
of
Ti-6Al-4V
alloy.
process
involved
sandblasting
(SB)
to
create
micro-scale
irregularities
on
alloy
surface,
followed
by
RF-MS
PEO.
coating's
morphology,
elemental
composition,
phase
chemical
analysis
were
examined
FE-SEM
with
energy-dispersive
spectroscopy,
X-ray
diffraction,
photoelectron
Raman
analysis.
dual
treatment
resulted
in
formation
composite
coatings
TiO2,
ZnO,
ZrO2,
HA
presence
displayed
anisotropic
multi-scale
porous
morphology
while
texturing
created
SB
facilitated
mechanical
interlocking
during
oxide
growth.
In
SB-Zr+PEO-Zn
sample,
indicated
strain-induced
stabilization
t-ZrO2
PEO
due
incorporation
Ca2+
ions,
zinc-substituted
hydroxyapatite
was
observed
that
showed
enhanced
roughness
wettability.
Also,
reduced
hardness
elastic
modulus
(comparable
cortical
bone)
transformation
toughening
under
stress
from
m-ZrO2.
within
coating,
all
act
as
protective
barriers
effectively
reducing
corrosion
rates.
biological
better
biocompatibility,
including
promoting
cell
proliferation,
adhesion,
osteoblast
differentiation,
ALP
activity,
mRNA
expression
several
osteogenic
markers
cells
cultured
sample.
These
results
higher
potential
system
osseointegration
ability
dental
implants.
Coatings,
Journal Year:
2024,
Volume and Issue:
14(5), P. 615 - 615
Published: May 13, 2024
Electrolytic
plasma
polishing
(EPPo)
is
an
advanced
metal
surface
finishing
technology
with
high
quality
and
environmental
protection
that
has
broad
application
prospects
in
the
biomedical
field.
However,
effect
of
EPPo
on
properties
such
as
corrosion
resistance
wettability
titanium
alloys
remains
to
be
investigated.
This
paper
investigated
changes
roughness,
morphology,
microstructure,
chemical
composition
Ti6Al4V
alloy
by
their
effects
resistance,
wettability,
residual
stress.
The
results
showed
Ra
decreased
from
0.3899
0.0577
μm
after
EPPo.
crystallinity
was
improved,
average
grain
size
increased
251
nm
more
than
800
nm.
oxidation
behavior
leads
increase
oxygen
content
formation
TiO2
Al2O3
oxide
layers.
can
significantly
improve
simulated
body
fluid
eliminate
stress
sample
surface.
are
enhanced
not
only
reduction
roughness
but
also
a
denser
film
surface,
free
energy,
annealing
developed
during
study
provide
guidance
references
for
applying
parts.
