E3S Web of Conferences,
Год журнала:
2024,
Номер
507, С. 01042 - 01042
Опубликована: Янв. 1, 2024
This
study
explores
the
advancement
of
aluminum-based
composite
manufacturing
through
integration
titanium
dioxide
(TiO2)
reinforcement
using
stir
casting
technique.
Aluminum
alloy
served
as
matrix
material,
combined
with
ceramic
particles,
melted
at
approximately
700°C
within
a
muffle
furnace.
Through
continuous
stirring
400
rpm
for
10
minutes,
particles
were
uniformly
dispersed
into
molten
alloy,
crucial
enhancing
properties.
The
incorporation
6.5%
TiO2
via
resulted
in
significant
enhancements
across
multiple
mechanical
Tensile
strength
improved
by
23.67%,
while
hardness
saw
remarkable
increase
38.9%.
Additionally,
fatigue
exhibited
notable
improvement
26.67%,
and
wear
resistance
showed
substantial
enhancement
24.34%.
uniform
dispersion
throughout
material
underscores
efficacy
technique
achieving
consistent
improvements
various
performance
metrics.
These
findings
hold
promise
development
high-performance
composites
tailored
diverse
engineering
applications.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
30, С. 88 - 100
Опубликована: Март 11, 2024
This
study
explores
the
phase
constitution,
thermal
behavior,
magnetic
characteristics,
and
mechanical
properties
of
FeCoNiCrCux
high-entropy
alloys
(HEAs)
produced
via
powder
metallurgy,
focusing
on
varying
copper
ratios
(0–20%).
The
investigation
seeks
to
understand
how
introduction
influences
composition
FeCoNiCr
HEAs,
particularly
regarding
changes
in
structure
behavior.
constitution
was
analyzed
using
field
emission
scanning
electron
microscopy
(SEM)
X-ray
diffraction
(XRD).
Thermal
expansion
differential
calorimetry
(DSC)
were
employed
while
vibrating
sample
magnetometers
(VSM)
utilized
assess
properties.
Mechanical
evaluated
through
hardness
testing.
analysis
reveals
a
shift
from
single-phase
FCC
dual-phase
configuration
comprising
copper-rich
phases
as
content
increases.
characterized,
demonstrating
alloy's
behavior
under
conditions.
tests
showed
decrease
with
increasing
content.
contributes
understanding
addition
affects
properties,
strength
HEAs.
observed
offer
insights
for
tailoring
HEAs
specific
applications.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Март 2, 2024
Abstract
Deposition
of
high
entropy
alloy
FeCoNiMnCu
on
SS-304
was
carried
out
by
microwave
energy
for
application
in
“solid
oxide
fuel-cell
(SOFC)
interconnects”.
The
ball-milling
has
been
performed
taking
“Fe,
Co,
Ni,
Mn,
and
Cu”
equal
20
wt.
%
before
deposited
substrate.
steel
with
20%
Fe
Co
Ni
Mn
Cu
(HEA)
exposed
to
thermal-exposure
the
air
up
10
weeks
at
800
°C.
uniform
cladding
distribution
HEA
particles
can
be
apparently
observed
substrate
utilizing
Scanning
Electron
Microscope
(SEM),
Optical
microscopy
analysis.
Homogeneity
interfacial
layer
evident
employing
(SEM)
characterization.
Results
have
indicated
that
after
thermal
exposure
ten
°C,
a
“protective
Cr
2
O
3
layer”,
“high-entropy
spinel
coating”
(Fe,
Cu)
4
formed.
During
cladding,
emergence
harder-phases
contributed
raised
hardness.
wear
behavior
coating
significantly
enhanced
due
strengthened
resistance
hardness
coatings.
Findings
exhibited
formation
phase
is
potential
material
“SOFC
interconnects”
applications.
Moreover,
SS304
composition
Fe,
demonstrated
remarkable
stability
under
expansion
studies.
As
findings
revealed
composite
efficiently
withstand
significant
variations
volume
when
subjected
elevated
temperatures
prolonged
period
time,
thus,
exhibiting
its
superior
SOFC-interconnect
Furthermore,
SEM
images
surface,
surface
hardness,
tribocorrosion
coated
identify
effect
steel-substrate.
Journal of Vacuum Science & Technology A Vacuum Surfaces and Films,
Год журнала:
2025,
Номер
43(2)
Опубликована: Фев. 19, 2025
The
Cr-Zr-Cu
copper
alloy
is
widely
used
to
manufacture
mold
for
continuous
casting.
proper
coating
can
avoid
the
mold's
failure
under
condition
of
a
high-temperature
and
friction
environment.
Three
kinds
Inconel
718/WC-12Co
coatings
(micro-,
nano-,
micro-nano-WC
particles)
were
prepared
on
surface
by
laser.
phases,
microstructure,
elemental
distribution
L1–L3
observed
analyzed
x-ray
diffractometer,
scanning
electron
microscope,
energy
dispersive
spectrometer.
properties
tested
Vickers
hardness
tester
wear
testing
machine.
results
show
that
main
phases
are
γ-Ni,
M3W3C,
MC,
W0.15Ni0.85,
W2C
in
coatings.
In
L1
coating,
there
an
obvious
phenomenon
WC
agglomeration.
L2
many
columnar,
dendritic
compounds,
“fish-bone”
crystals
with
small
size
due
addition
nanoparticles.
L3
structure
scattered
uneven
compounds.
average
values
coatings'
microhardness
709.6,
851.9,
600.1
HV0.5,
respectively.
has
maximum
microhardness.
When
experimental
temperature
400
°C
during
test,
rates
3.29,
1.89,
2.83
×
10−4
mm3
N−1
mm−1,
minimum
rate
smaller
grain
size,
denier
structure.
Composite Interfaces,
Год журнала:
2024,
Номер
31(10), С. 1173 - 1197
Опубликована: Март 18, 2024
The
present
study
investigated
the
effect
of
incorporating
Yttria-Stabilized
Zirconia
(YSZ)
and
copper
(Cu)
in
development
Titanium-Based
Metal
Matrix
Composites
(TMCs)
using
Friction
Stir
Processing
(FSP)
technique.
macrostructure
TMCs,
after
adding
5%
YSZ
2%
Cu,
displayed
a
defect-free,
crack-free,
porosity-free
surface,
indicating
precision
FSP
method.
Microstructure
analysis
revealed
uniform
distribution
reinforcement
particles
proper
dispersion
grains,
key
for
enhancing
mechanical
properties.
interfacial
bonding
between
titanium
was
exceptionally
strong,
devoid
cracks
porosity,
attributed
to
additive's
role.
increase
number
grains
per
square
inch
Ti/5%
YSZ/2%
Cu
composite
(1176.26
at
500×)
signified
finer
grain
structure,
contributing
remarkable
48.04%
improvement
tensile
strength
compared
pure
titanium.
strong
are
driving
forces
behind
46.34%
increased
hardness.
Additionally,
wear
resistance
improved
by
approximately
76.66%,
vital
characteristic
applications
facing
abrasive
conditions.
corrosion
testing
demonstrated
an
8.33%
enhancement
with
composite.
