Korosi
logam
didukung
oleh
sejumlah
variabel,
termasuk
reaktivitas
mereka,
kehadiran
kontaminan,
pH
dan
suhu
larutan,
teknik
industry
Seperti
pengasapan,
pembersihan
asam,
pemotongan,
desalinasi,
sebagainya
[14].
Untuk
melawan
korosi,
beberapa
metode
telah
diterapkan
untuk
mencegah
korosi
antara
lain.
Perencanaan
yang
tepat,
pemilihan
bahan
hati-hati,
elektrokimia,
lapisan
pelindung,
penambahan
inhibitor
korosi.
Penggunaan
sering
dianggap
sebagai
paling
praktis
tidak
memakan
waktu[15]
.Penggunaan
waktu
Inhibitor
dapat
digunakan
pada
berbagai
logam,
besi,
baja,
aluminium,
tembaga.
[16]Penggunaan
dalam
industri,
lain:
industri
minyak
gas
pipa
gas.
Industri
pengolahan
makanan
peralatan
makanan.
farmasi
farmasi.
maritim
kapal
laut.
otomotif
kendaraan.Penggunaan
membantu
mengurangi
biaya
perbaikan
penggantian
disebabkan
[17].Dalam
upaya
menemukan
cara
menghentikan
sebelum
dimulai.
Para
peneliti
selalu
bekerja
memajukan
state
of
the
art
teknologi
tahan
Ada
strategi
berbeda
menghambat
sekarang
tersedia
[18].
Adapun
pencegahan
dikembangkan
pasif,
aktif,
terstruktur.
Metode
pasif
menggunakan
seperti
cat,
pelapisan
anodisasi.
aktif
meliputi
penggunaan
proteksi
katodik,
anodik,
kimia.
terstruktur
desain
konstruksi
tepat
paparan
[19].
Journal of Magnesium and Alloys,
Год журнала:
2024,
Номер
12(10), С. 3967 - 3995
Опубликована: Авг. 27, 2024
Magnesium–lithium
(Mg–Li)
alloys
are
characteristic
of
great
potentials
for
transformative
weight
reduction
across
diverse
applications,
from
aeronautics
and
spacecraft
to
automobiles,
electronics,
biomaterials.
However,
commercial
services
on
Mg–Li
remain
challenges
given
their
poor
corrosion
resistance.
This
article
critically
reviews
state-of-the-art
progress
corrosion-resistant
coatings
alloys,
aiming
unlocking
the
full
potential
such
promising
materials.
The
preparation
techniques
employed
summarized,
underlying
protective
mechanisms
elucidated,
coating
performances
evaluated.
review
further
highlights
key
future
exploration
development,
provides
insightful
perspectives
towards
emerging
frontiers
in
this
dynamic
domain.
Cleaner Materials,
Год журнала:
2024,
Номер
11, С. 100230 - 100230
Опубликована: Фев. 23, 2024
The
significance
of
Mg
(alloy)
extends
to
both
the
mechanical
engineering
and
medical
sectors.
However,
is
known
for
its
high
reactivity,
posing
significant
challenges
widespread
utilization
in
large-scale
lightweight
applications.
Research
has
shown
that
adding
small
amounts
reactive
elements,
such
as
Ca,
can
substantially
improve
high-temperature
oxidation
resistance
numerous
alloys.
This
diminish
reliance
on
greenhouse
gases
with
global
warming
potential,
typically
used
protective
during
processing.
In
a
similar
vein,
patented
Environment-COnscious
technology
offers
distinct
advantages
by
utilizing
cost-effective
more
stable
oxide
form
desired
alloying
element,
notably
alkaline
earth
metals
like
instead
their
elemental
forms,
Mg.
development
holds
considerable
importance
mitigating
carbon
footprint
throughout
manufacturing.
While
patents
production
outline
method
employing
various
versatile
oxides,
practical
application
primarily
relied
calcium
oxide,
indicated
literature.
Therefore,
this
review
brings
light
state
art
concerning
interaction
between
molten
(alloy),
influence
technical
properties,
potential
challenges,
areas
requiring
further
investigation
field.
Until
now,
issue
not
been
discussed
from
critical
holistic
approach.
Heliyon,
Год журнала:
2024,
Номер
10(16), С. e35836 - e35836
Опубликована: Авг. 1, 2024
Stem
cell
transplantation
has
emerged
as
a
promising
avenue
in
regenerative
medicine,
potentially
facilitating
tissue
repair
degenerative
diseases
and
injuries.
This
review
comprehensively
examines
recent
developments
challenges
stem
transplantation.
It
explores
the
identification
isolation
of
various
types,
including
embryonic,
induced
pluripotent,
adult
cells
derived
from
multiple
sources.
Additionally,
highlights
tissue-specific
applications
these
cells,
focusing
on
bone
cartilage
regeneration,
treatment
neurological
disorders,
management
hematological
conditions.
Future
advancements
effective
resolution
current
will
be
crucial
fully
realizing
potential
medicine.
With
responsible
ethical
practices,
field
can
transform
disease
injury
treatment,
ultimately
improving
quality
life
for
countless
individuals.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
30, С. 7203 - 7213
Опубликована: Май 1, 2024
The
amorphous/crystalline
(A/C)
dual-phase
structure
is
a
new
design
strategy
to
improve
the
comprehensive
performance
of
Mg
alloys.
However,
regulation
mechanism
amorphous
phase
size
alloys
still
unclear.
Here,
and
effect
solid-state
amorphization
investigated
using
molecular
dynamics/Monte
Carlo
simulations.
results
indicate
that
degree
depends
on
three
factors:
original
phase,
diffusion
rare
earth
element
Y,
A/C
interface
(ACI).
exhibits
significant
phase.
Except
for
two
models
with
smaller
decreases
significantly
increase
It
worth
noting
after
relaxation,
as
increases,
distribution
Y
atoms
in
undergoes
transition
from
uniform
segregation,
larger
more
obvious
segregation
phenomenon
becomes.
suppresses
show
requires
presence
ACI,
both
which
are
essential.
Journal of Magnesium and Alloys,
Год журнала:
2024,
Номер
12(8), С. 3308 - 3324
Опубликована: Авг. 1, 2024
While
magnesium
(Mg)
is
a
promising
material
for
personalized
temporary
implants,
the
lack
of
digital
manufacturing
solution
Mg
implants
impedes
its
potential
progress.
This
study
introduces
hybrid
process
that
integrates
binder
jet
additive
with
automated
dry
post-machining
to
enable
end-to-end
implants.
Spherical
cap-shaped
were
additively
manufactured
through
jetting.
These
placed
on
graphite
flakes
during
sintering
as
non-reactive
support
material,
allowing
unrestricted
shrinkage
15.2
%
relative
density
87
%.
Microstructural
and
dimensional
analysis
revealed
consistent
interconnected
porous
microstructures
distortion
within
±
0.2
mm
original
drawing.
High-speed
milling
sintered
samples,
assessed
via
an
orthogonal
cutting
test,
identified
optimized
parameters.
A
three-step
machining
5-axis
machining,
along
clamping
strategies,
referencing,
adaptive
plug-in,
successfully
implemented.
The
binder-jet
printed
resulted
in
average
roughness
<
1.3
µm
no
defects.
In
summary,
this
work
robust
advance
transformative
landscape
scaffolds.
Results in Chemistry,
Год журнала:
2024,
Номер
7, С. 101455 - 101455
Опубликована: Янв. 1, 2024
Using
a
suite
of
techniques,
including
potentiodynamic
polarization,
electrochemical
impedance
spectroscopy
(EIS),
and
open
circuit
potential
measurements,
we
investigated
the
corrosion
resistance
transition
metal
chelates
derived
from
Schiff
base
ligands
against
mild
steel,
copper
oxide,
aluminum,
stainless
high-carbon
steel
in
acidic
environments
containing
varying
concentrations
hydrochloric
acid,
hydroxide
ions,
sulfate
ions
at
25
°C.
Spectral,
quantitative,
physico-chemical
analyses
were
employed
to
characterize
compounds
under
investigation.
Our
findings
reveal
significant
inhibition
across
various
substrates
tested
media
by
studied
compounds.
Moreover,
observed
an
enhancement
efficacy
with
increasing
complexes.
Notably,
negative
values
Gibb's
free
adsorption
energy
(ΔG°ads)
challenge
applicability
Langmuir
isotherm,
suggesting
novel
perspective
on
control
mechanisms.
study
underscores
bases
related
as
effective
inhibitors,
providing
insights
into
their
utilization
factors
influencing
application
mitigation
strategies.
