Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 27, 2024
In
the
present
work,
egg
shell
and
Tungsten
disulphide
particles
are
reinforced
in
AZ31B
alloy
using
friction
stir
process.
Initially,
ES
WS
2
mixed
at
different
weight
ratios
(25/75,
50/50
75/25)
then
plates
a
taper
threaded
FSP
tool
rotation
speed
of
1000
rpm,
axial
load
6
kN
traverse
10
mm/min
hole
method.
The
post
macroscopic
analysis
showed
that
defect
free
hybrid
surface
composite
is
obtained
with
75wt
%ES
25wt
%
alloy.
grain
size
reduced
from
15
µm
to
5
due
addition
75wt%
25wt%
through
FSP.
mechanical,
corrosion
tribological
responses
AZ31B/75ES/25WS
observed
compared
FSPed
without
reinforcements
base
microhardness
improved
by
66%
83%
respectively
Similarly,
ultimate
tensile
strength
16%
31%
but
elongation
decreased
70%
78%
rates
22%
48%
dry
sliding
wear
for
varying
applied
(10
N,
20
N
30
N)
velocity
(1.5
m/s,
2.6
m/s
3.6
m/s)
constant
distance
2000
m.
alloy,
mechanism
initially
dominated
delamination
ploughing
phenomena
high
condition,
delaminated
worn
out
debris
based
tribolayer
rate.
composite,
adhesive
formed
rate
condition.
International Journal of Cast Metals Research,
Год журнала:
2024,
Номер
37(2), С. 136 - 147
Опубликована: Март 3, 2024
Al-CNTs
composite
coatings
were
successfully
prepared
on
AZ31
alloy
using
laser
cladding
(LC).
The
effect
of
TiC
nanoparticles
microstructure
and
corrosion
resistance
the
LC
Al-TiC-CNTs
investigated.
composed
α-Mg
solid
solution
phase
β-Al12Mg17,
Mg2Al3,
Mg32(Al,Zn)49
compound
phases.
A
sound
metallurgical
bonding
interface
was
produced
between
alloy.
surface
microhardness
coatings,
which
gradually
decreased
with
increasing
content
carbon
nanotubes
(CNTs)
nanoparticles,
significantly
enhanced
compared
to
those
(99
wt%
Al
+
1
CNTs)
coating
exhibits
excellent
resistance.
mean
microhardness,
self-corrosion
potential
current
266.4
HV,
−1.233
V
2.55
×
10−5
A,
426.2%,
78.9%
16.5%
alloy,
respectively.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
30, С. 4908 - 4919
Опубликована: Апрель 25, 2024
In
this
study,
nano
Ti/AZ31
composites
were
successfully
prepared
by
powder
metallurgy
method,
and
the
strength
plasticity
of
improved
in
both
directions.
The
SEM
shows
that
Ti
particles
evenly
distributed
at
grain
boundary
sintered
composite,
pin
to
make
composite
significantly
refined.
EBSD
addition
reduces
texture
increases
starting
probability
slip
system.
TEM
AZ31
matrix
formed
stable
Al3Ti
MgO
phases
interface,
a
strong
coherent
relationship.
nanoindentation
test
interface
was
stable,
bonding
energy
fracture
toughness
gradiently
distributed,
area
better
than
those
matrix.
Tensile
1.5wt.%Ti/AZ31
obtained
best
comprehensive
mechanical
properties
with
yield
strength,
ultimate
tensile
elongation
143
MPa,
243
MPa
11.5%,
respectively,
obviously
higher
alloys.
increased
mainly
due
refinement
strengthening
boundaries.
ductility
result
weakened
texture,
increase
system
start-up
interfacial
between
Lubricants,
Год журнала:
2024,
Номер
12(6), С. 213 - 213
Опубликована: Июнь 11, 2024
The
requirement
for
high-performance
and
energy-saving
materials
motivated
the
researchers
to
develop
novel
composite
materials.
This
investigation
focuses
on
utilizing
aluminum
alloy
(A383)
as
matrix
material
produce
hybrid
metal
composites
(HMMCs)
incorporating
boron
carbide
(B4C)
multi-walled
carbon
nanotube
(MWCNT)
through
a
cost-effective
stir
casting
technique.
synthesis
of
HMMCs
involved
varying
weight
fractions
B4C
(2%,
4%,
6%)
MWCNT
(0.5%,
1%,
1.5%).
metallographic
study
was
carried
out
by
field
emission
scanning
electron
microscopy
(FESEM)
mapped
with
EDS
analysis.
results
indicated
uniform
dispersion
robust
interfacial
interaction
between
reinforced
particles,
significantly
enhancing
mechanical
properties.
Micro-hardness
wear
characteristics
fabricated
were
investigated
using
Vickers
microhardness
testing
pin-on-disc
tribometer
setup.
disc
is
made
hardened
chromium
EN
31
steel
hardness
62
HRC.
applied
load
varied
10N,
20N,
30N
constant
sliding
speed
1.5
m/s
different
distances.
micro-hardness
value
wt%
6
improved
61%
compared
base
alloy.
Additionally,
resistance
increasing
reinforcement
content.
Incorporating
1.5%
CNT
6%
reinforcements
in
experiencing
about
40%
reduction
loss
unreinforced
matrix.
Furthermore,
volumetric
critically
analyzed
respect
loads
research
underscores
positive
impact
content
properties
alloy-based
composites.
