Industrial Lubrication and Tribology,
Journal Year:
2023,
Volume and Issue:
75(10), P. 1208 - 1218
Published: Nov. 9, 2023
Purpose
This
study
aims
to
investigate
the
effects
of
irregular
groove
textures
on
friction
and
wear
performance
sliding
contact
surfaces.
These
possess
multiple
depths
asymmetrical
features.
To
optimize
texture
structure
surface,
an
adaptive
genetic
algorithm
was
used
for
research
optimization
purposes.
Design/methodology/approach
Using
as
tool,
numerical
simulations
were
conducted
surface
by
establishing
a
dimensionless
form
Reynolds
equation
setting
appropriate
boundary
conditions.
An
program
in
MATLAB
established.
Genetic
iterative
methods
calculate
optimal
structure.
individuals
selected
through
fitness
comparison.
The
depth
is
gradually
adjusted
crossover,
mutation,
mutation
operations.
ultimately
obtained
comparing
bearing
capacity
pressure
different
generations
micro-convex
bodies.
Findings
After
about
100
iteration,
distribution
grooved
became
relatively
stable,
after
320
generations,
reached
their
At
this
stage,
structures
can
support
more
loads
forming
oil
films.
Compared
with
regular
textures,
coefficient
decreased
nearly
47.01%,
while
carrying
lubricating
films
increased
54.57%.
results
show
that
have
better
lubrication
characteristics
effectively
improve
component
Originality/value
Surface
enhance
metal
surfaces,
improving
mechanical
lifespan
components.
However,
processing
challenging,
it
often
requires
experimental
comparisons
determine
structure,
resulting
high
trial-and-error
costs.
By
using
be
simulation
modeling,
saving
costs
process.
Wear,
Journal Year:
2024,
Volume and Issue:
542-543, P. 205264 - 205264
Published: Jan. 27, 2024
Many
efforts
are
being
made
in
recent
years
to
boost
the
performance
of
traditional
lubricants
with
innovative
nano-additive,
like
graphene.
In
this
paper
long-term
lubricated
pin-on-disc
tests
were
performed
four
grease
compounds
filled
0.5
%–5
%
graphene
nano-platelets.
Severe
contact
conditions
explored
investigate
impact
on
and
thermal
properties
grease.
The
temperature
sliding
in-situ
electric
resistance
monitored
correlated
friction
wear.
Results
tribo-thermo-electrical
indicated
that
a
moderate
quantity
reduce
both
wear
because
strengthened
lubricating
film
against
scuffing.
However,
an
excessive
was
detrimental
interfered
lubrication.
Graphene
also
affected
grease,
but
it
did
not
directly
affect
overall
behaviour
tribopair.
Lubricants,
Journal Year:
2025,
Volume and Issue:
13(3), P. 96 - 96
Published: Feb. 20, 2025
In
order
to
evaluate
contact
characteristics,
a
modified
model
was
proposed
considering
the
deformation
characteristics
of
asperity
bodies,
and
variation
rules
wear
rate
with
fractal
dimension,
material
property
constant
debris
probability
were
established.
The
results
show
that
actual
area
increases
an
increase
in
load
when
surface
topography
is
constant,
whereas
decreases
characteristic
scale
coefficient
if
dimension
or
constant.
For
running-in
wear,
profile
parameters
under
same
area.
addition,
parameter
Regarding
abrasive
smallest
1.6.
coefficient,
but
area,
smaller
larger
higher
rate.
establishment
this
provides
basis
for
further
study
tribological
properties
surface.
Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Titanium
alloys
are
widely
used
in
fields
such
as
aerospace
and
medicine
due
to
their
high
specific
strength,
corrosion
resistance,
excellent
mechanical
properties,
biocompatibility.
However,
the
performance
of
titanium
practical
applications
is
affected
by
poor
tribological
properties.
Surface
texturing
based
on
biomimetic
design
effectively
controls
properties
materials.
In
recent
years,
various
techniques
for
surface
have
been
developed.
Among
these
techniques,
laser
processing
demonstrates
significant
advantages,
including
efficiency,
cleanliness,
accuracy,
flexibility,
controllability.
Consequently,
it
has
attracted
considerable
attention.
This
paper
reviews
current
research
effect
alloys.
Commonly
introduced.
By
varying
different
parameters,
geometric
characteristics
morphology
texture
can
be
affected.
The
focus
summarizing
effects
alloys,
with
a
particular
emphasis
friction
wear
behavior
under
both
dry
lubricated
conditions.
primary
mechanisms
reduction
resistance
explored:
(1)
reduce
actual
contact
area
between
surfaces.
(2)
also
capture
debris
enable
adsorption
retention
lubricants,
reducing
abrasive
surface.
Additionally,
new
processes
that
combine
coating
treatments
Finally,
future
application
prospects
development
directions
laser-processed
discussed.
