Modification of Microstructure and Surface Properties of Ti-6Al-4V Alloy by MoSi2 Particles Using Micro-Arc Oxidation Process
Advances in Science and Technology – Research Journal,
Год журнала:
2024,
Номер
18(2), С. 374 - 384
Опубликована: Март 12, 2024
As
an
effective
surface
modification
technique,
micro-arc
oxidation
(MAO)
is
now
widely
used
to
improve
the
hardness
and
wear
resistance
of
Ti
its
alloys
by
low-cost
thick
ceramic
coatings.In
this
study,
molybdenum
disilicide
(MoSi
2
)
-modified
coatings
were
deposited
on
Ti-6Al-4V
alloy
(340
HV)
MAO
using
aqueous
solution
Na
SiO
3
,
(NaPO
6
NaOH
MoSi
particles.MoSi
particles
(3,
5,
7
g/l)
from
wastes
furnaces
electrodes
introduced
into
electrolyte
microstructure
properties
alloys.A
scanning
electron
microscope
(SEM),
dispersive
spectroscopy
(EDS),
X-ray
diffraction
(XRD),
mechanical
tests
(microhardness
wear)
identify
coating
properties,
morphologies,
phases.The
findings
showed
that
addition
5
g/l
increased
thickness
19.08
µm
910
HV
33.12
1260
HV,
respectively.Also,
means
weight
losses
uncoated
enhanced
68%
100%
after
modified-MAO
coatings,
respectively.Results
work
will
promote
future
works
in
industrial
engineering
technique
for
applications.
Язык: Английский
Exploring the composition and corrosion resistance in hybrid-modified Ti13Nb13Zr alloy
MRS Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 18, 2024
Abstract
Hybrid
modification,
combining
Nd:
YAG
laser
and
micro-arc
oxidation,
enhances
biomaterials
like
titanium
alloys
by
improving
biocompatibility
corrosion
resistance.
This
study
investigates
the
chemical
composition
of
modified
surfaces
their
performance
in
tests,
with
implications
for
implantology.
Results
show
that
hybrid
treatment
improves
ion
implantation
efficiency
resistance
compared
to
MAO
alone,
offering
promising
benefits
Ti13Nb13Zr
alloy.
For
instance,
(1000W)-MAO
modification
exhibits
superior
other
methods.
Graphical
abstract
Язык: Английский
Antibacterial Ti-Cu and Ta-Cu Coatings for Endoprostheses Applied by Magnetron Sputtering onto Ti6Al4V Alloy
Advances in Materials Science,
Год журнала:
2024,
Номер
24(4), С. 23 - 41
Опубликована: Дек. 1, 2024
Abstract
The
paper
presents
new
results
of
manufacturing
coatings
by
magnetron
sputtering
to
improve
the
functional
properties
joint
endoprostheses.
antibacterial
Ti-Cu
and
Ta-Cu
deposited
DC
multi-magnetron
on
Ti6Al4V
alloy
substrates
subjected
gas-abrasive
treatment
have
been
investigated.
roughness
substrate
was
measured
optical
profilometry.
coating
hardness
elastic
modulus
were
estimated
nanoindentation
methods;
adhesion
characteristics
assessed
Rockwell
test.
Scanning
electron
microscopy
with
energy-dispersive
X-ray
analysis
verified
application
25
at.%
Cu,
at
thicknesses
2
μm
10
roughened
alloy.
All
demonstrated
sufficient
adhesion,
whereas
generally
revealed
higher
hardness,
while
decreased
increasing
thickness.
Staphylococcus
aureus
strains
used
for
in
vitro
study
coatings.
largest
zones
inhibition
bacteria
S.
23
mm
observed
µm
release
dynamics
Cu
ions
from
into
physiological
solution
analyzed
over
seven
days
via
inductively
coupled
plasma
mass
spectrometry,
matched
zone
growth.
thickness
provided
weaker
effect.
optimal
parameters
Ti6Al4
selected.
These
findings
support
potential
these
developing
endoprosthesis
implants
enhanced
antimicrobial
wear-resistant
Язык: Английский