Tribomechanical, and microstructural morphological analysis of nitride ferrous powder metallurgy composites for enhanced automotive valve guide performance
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
31, С. 6 - 25
Опубликована: Июнь 2, 2024
The
growing
challenges
of
reducing
exhaust
emissions
and
improved
fuel
economy
has
triggered
automotive
engineers
to
design
manufacture
engine
parts
with
superior
mechanical
properties
dimensional
accuracies.
Valve
guides
are
cylindrical
structures
supporting
inlet
valve
stems
during
operation.
Conventionally
made
grey
cast
iron
material,
guide
suffers
from
severe
wear
losses
leading
loss
increased
due
improper
stem
seating.
Here,
the
synthesis
a
novel
ferrous
powder
metallurgy
composite
is
presented
characteristics
have
been
studied
at
varying
loads
30
N,
40
N
50
sliding
speeds
0.5
m/s,
1
m/s
2
under
lubricated
conditions.
samples
undergone
nitriding
heat
treatment
1150
°C
improve
surface
hardness
700
Hv.
shown
negative
rates
high
capillary
action
lubricating
oil
exhibited
stable
friction
coefficient
values.
This
attributed
formation
hard
phases
Fe2N,
Fe3N,
Fe4N
Fe(Mn)3C
twinning-induced
plastic
compounds
like
(Fe24Mn)
0.08
as
evident
XRD
analysis.
morphological
analysis
worn
out
was
done
SEM
Coupled
EDS
it
showed
micro-cutting,
Ploughing,
delamination
main
phenomenon.
Язык: Английский
Understanding the effect of preparation technique and compaction pressure on the microstructure, sinterability and mechanical properties of the Cu-20 wt.% WC composite prepared with recycled WC
Deleted Journal,
Год журнала:
2025,
Номер
unknown, С. 100066 - 100066
Опубликована: Фев. 1, 2025
Язык: Английский
Synergistic Effects of Graphene Nanosheets on the Microstructure, Hardness and Tribological Performance of Al/WC Nanocomposites Fabricated by Flake Powder Metallurgy
Materials Chemistry and Physics,
Год журнала:
2025,
Номер
unknown, С. 130597 - 130597
Опубликована: Фев. 1, 2025
Язык: Английский
Effect of various polymer types on Fe2O3 nanocomposite characteristics: insights from microstructural morphological, optical and band gap analyses
Polymer Bulletin,
Год журнала:
2024,
Номер
81(15), С. 13941 - 13958
Опубликована: Июнь 21, 2024
Язык: Английский
Enhanced tribological performance of transesterified corn oil biodiesel blends with CuO and TiO2 nanoparticles: experimental analysis on wear and friction reduction using environment friendly lubricants
International Journal of Chemical Reactor Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 5, 2024
Abstract
The
tribological
characteristics
of
biodiesel
blends
containing
corn
oil
and
nanoparticles
copper
oxide
titanium
dioxide
were
examined
in
this
study.
prepared
along
with
nanopowders
are
blended
20W-40
lubricant.
aim
was
to
explore
the
potential
these
as
lubricants
various
mechanical
systems.
A
pin-on-disk
equipment
used
perform
tests
under
different
stresses.
optimal
outcomes
achieved
incorporation
100
ppm
CuO
BD20,
which
reduced
coefficient
friction
by
much
80
%
decreased
wear
rate
up
75
comparison
pure
biodiesel.
There
is
also
a
decrease
frictional
force
for
sample
BD20
pin
temperature
minimum
BD20.
results
indicate
viability
using
mixtures
TiO
2
eco-friendly
diverse
industrial
applications.
Язык: Английский
Exploring the Tribo-corrosion Characteristics of Clay- and MgO-Reinforced Composites: A Comparative Study
Journal of The Institution of Engineers (India) Series D,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 18, 2024
Язык: Английский
Synthesis and Characterization of Graphene on Copper Foil via Atmospheric Pressure Chemical Vapor Deposition Method and its Impact on Electrical Properties
Carbon,
Год журнала:
2024,
Номер
unknown, С. 119640 - 119640
Опубликована: Сен. 1, 2024
Язык: Английский
Microwave Hybrid Sintering and Soldering of Cu-Cr-W Composite Material for Reactive Power Breakers
Materials,
Год журнала:
2024,
Номер
17(18), С. 4648 - 4648
Опубликована: Сен. 22, 2024
Over
60%
of
reported
failures
for
reactive
power
compensation
systems
are
given
damage
to
electrical
circuit
breaker
contacts.
This
paper
presents
a
study
on
the
development
microwave
technology
sintering
W–Cu–Cr
alloys
at
1012
°C
65
min
using
623.38
W
power,
as
well
joining
231
composite
material
body
contact
475
55
s.
The
joined
components
were
subjected
mechanical
and
tests
in
accordance
with
ICE
standards
validate
applied
technology.
Tests
connection–disconnection
contacts
carried
out
maximum
number
disconnections
allowed
by
manufacturer
(2
cycles/min):
25
s
rest
time
5
operating
under
load.
after
111237
switches
analyzed
microscope
revealing
reduction
damaged
area
27%
compared
original
contact.
Язык: Английский
Synthesis and Purification of Nano-sized Titanium Carbide Particles through Vacuum Carbothermal Reduction for enhanced Mechanical, Microstructural Morphology, and Tribological Properties in Friction Stir Processed A356-based Aluminum Composites
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Recent Progress in Particulate Reinforced Copper‐Based Composites: Fabrication, Microstructure, Mechanical, and Tribological Properties—A Review
Advanced Engineering Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 20, 2024
In
recent
years,
there
has
been
a
significant
increase
in
research
studies
that
include
the
fabrication
and
characterization
of
metal
matrix
composites
(MMCs)
with
unique
features.
This
comprehensive
review
delves
into
evolution
current
status
copper
MMCs
(Cu‐MMCs)
across
various
industrial
sectors.
Cu‐MMCs
have
garnered
attention
due
to
their
remarkable
properties,
which
excellent
thermal
electrical
conductivity,
corrosion
resistance,
wear
resistance.
study
explores
processes,
intricate
connections
between
microstructure
properties
Cu‐MMCs,
encompass
ceramic
solid
lubricants
(SLs)
reinforcements.
The
types
reinforcement
methods
are
examined
highlighted
advancements
designing
compositions
optimizing
microstructures
during
fabrication.
Additionally,
this
evaluates
friction
characteristics
self‐lubricating
hybrid
composites,
providing
insights
effective
lubrication
ranges
overall
tribological
behavior
patterns.
highlights
demonstrate
superior
mechanical
strength,
ceramics
SLs
mechanisms
underlying
involve
formation
protective
transfer
layer
sliding
provided
by
SLs,
reduces
direct
contact
facilitates
smoother
interactions
mating
surfaces.
culminates
an
outlook
on
prospects
emphasizing
advantages
conferred
utilization.
Язык: Английский