Coatings,
Journal Year:
2024,
Volume and Issue:
14(11), P. 1394 - 1394
Published: Nov. 2, 2024
AlCoCrFeNi
HEA
powders
were
cladded
onto
AISI
1045
steel
using
EHLA
and
CLA,
respectively.
The
phase
composition,
microstructure,
micro/nanohardness,
corrosion
resistance
of
the
two
coatings
compared
analyzed.
results
show
that
structure
prepared
by
CLA
was
a
BCC/B2
solid
solution.
From
bottom
to
top,
EHLA-derived
coating
experienced
evolution
in
microstructure
plane
crystal,
dendrite,
equiaxed
crystal.
micro/nanohardness
(~507
HV0.2,
6.716
GPa)
is
higher
than
CLA-derived
(~429
5.778
GPa).
electrochemical
test
Ecorr
−0.527
V
Icorr
1.272
×
10−7
A/cm2,
while
−0.454
1.588
10−8
which
means
better.
Tribology International,
Journal Year:
2024,
Volume and Issue:
200, P. 110143 - 110143
Published: Aug. 23, 2024
Tribocorrosion
is
a
recent
paradigm
of
tribology
defined
as
the
combination
simultaneous
mechanical
and
chemical
wear
couplings.
To
date,
this
phenomenon
common
in
several
engineering
fields,
such
naval
sector
where
marine
equipment,
offshore
platforms
so
on
are
clear
examples.
In
regard,
synergy
between
effects
has
notable
effect
behavior
couplings
seawater
environment.
Nevertheless,
latter
can
act
also
antagonistic
factor.
Hence,
manuscript,
an
investigation
was
conducted
tribosystem
composed
alumina
sphere
stainless-steel
AISI
316
L
flat,
immersed
artificial
solution
3.8
%
NaCl
pH
8.2.
The
analysis,
carried
out
by
reciprocating
tribometer
equipped
with
two/three-electrode
potentiostat,
performed
for
different
loads
frequency
values,
their
correlation
synergistic
investigated.
open-circuit
potential,
friction
coefficient,
tribocorrosive
current
total
were
evaluated
tribological
conditions.
It
found
that
force
sliding
velocity
had
significant
position
response,
passing
from
positive
to
negative
mainly
due
protective
action
oxide
layer
lubrication
corrosion
products
formed
during
motion.
Moreover,
modeled
via
two
analytical
laws
discussed
literature,
providing
good
agreement
experimental
data.
Lastly,
provided
thickness
evolution
samples
surface
its
relationship
wear.
Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
The
aim
of
this
investigation
was
to
study
nonuniform
corrosion
in
the
vertical
direction
Q345
steel
South
China
Sea.
First,
a
metal
monitoring
system
designed
and
applied
based
on
coulometer
principle
array
electrode
technology.
Then,
through
testing,
weightlessness
analysis,
electrochemical
surface
morphology
observation,
behavior
used
an
offshore
wind
turbine
Zhanjiang
Bay
Sea
studied.
results
revealed
that
within
first
30
days
experiment,
electrodes
connected
by
electricity
exhibited
sacrificial
anode/cathode
protection
with
self‐coupling.
Therefore,
rates
were
slowed.
Between
60
120
days,
underwent
transition
region.
In
actual
marine
environments,
most
severely
corroded
areas
long
structures
near
sea
seabed
had
be
prioritized
for
protection.
Advanced Materials Technologies,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 6, 2025
Abstract
Metals
are
prone
to
corrosion,
so
the
development
of
efficient
intelligent
protective
coatings
has
become
a
major
demand.
In
recent
years,
researchers
have
made
significant
progress
in
anti‐corrosion
field.
Intelligent
can
precisely
release
required
healing
agents
or
change
solid–liquid
phase
transition
response
external
stimuli,
such
as
pH,
temperature,
and
redox,
achieving
anti‐corrosion.
This
review
summarized
classifications
coatings,
discussed
triggering
mechanisms
explored
corrosion
inhibitors
for
aiming
provide
reference
further
development.
